{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:4R37GQJN2EG3Z2NWB3FKGSTE55","short_pith_number":"pith:4R37GQJN","canonical_record":{"source":{"id":"1408.3978","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-08-18T11:19:22Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"3d36babf38f95ad7048bf94a5d1d8633b4667a382187e9e06a9bca04699194e2","abstract_canon_sha256":"4833b89eddbc11e2fcec73baf0675976d497098d7280ff7dbfb40f4f00cc0d6b"},"schema_version":"1.0"},"canonical_sha256":"e477f3412dd10dbce9b60ecaa34a64ef4cccc173df74c7d0481d517f2cbc2ae5","source":{"kind":"arxiv","id":"1408.3978","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3978","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3978v3","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3978","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_12","alias_value":"4R37GQJN2EG3","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_16","alias_value":"4R37GQJN2EG3Z2NW","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_8","alias_value":"4R37GQJN","created_at":"2026-07-04T19:16:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:4R37GQJN2EG3Z2NWB3FKGSTE55","target":"record","payload":{"canonical_record":{"source":{"id":"1408.3978","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-08-18T11:19:22Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"3d36babf38f95ad7048bf94a5d1d8633b4667a382187e9e06a9bca04699194e2","abstract_canon_sha256":"4833b89eddbc11e2fcec73baf0675976d497098d7280ff7dbfb40f4f00cc0d6b"},"schema_version":"1.0"},"canonical_sha256":"e477f3412dd10dbce9b60ecaa34a64ef4cccc173df74c7d0481d517f2cbc2ae5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T19:16:21.419276Z","signature_b64":"6NVtW38UdnPvRavMoC65Q5bfpx0Z/3znflvMWG/MmtJtLxSfOnBqOtA2dqmhrMA1GAt14gv56FMqqvRz++AKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e477f3412dd10dbce9b60ecaa34a64ef4cccc173df74c7d0481d517f2cbc2ae5","last_reissued_at":"2026-07-04T19:16:21.418742Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T19:16:21.418742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.3978","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T19:16:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lrOV8GwA17016maPB3OxpI8xPrRtjaSwTMCox9nOmmL4rxe5RT37xQMcuRM2akkdeEfuMcSbM6UBlq+7MSwuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T08:11:59.897642Z"},"content_sha256":"7ed0891f5157ad647bbae74b49e07fa52709d50842d522ea8e4211923c257d36","schema_version":"1.0","event_id":"sha256:7ed0891f5157ad647bbae74b49e07fa52709d50842d522ea8e4211923c257d36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:4R37GQJN2EG3Z2NWB3FKGSTE55","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Advanced Virgo: a 2nd generation interferometric gravitational wave detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies.","cross_cats":["physics.ins-det"],"primary_cat":"gr-qc","authors_text":"A. Allocca, A. Basti, A. Bertolini, A. Brillet, A. Chincarini, A. Chiummo, A. Colla, A. Conte, A. Dalmaz, A. Di Lieto, A. Di Virgilio, A. Gatto, A. Gennai, A. Giazotto, A. Heidmann, A. Kr\\'olak, A. Kutynia, A. Masserot, A. Moggi, A. Paoli, A. Pasqualetti, A Piluso, A. Rocchi, A. Vicer\\'e, A. Zadro\\.zny, B. Canuel, B. Gendre, B. Lieunard, B. Mours, B. Sassolas, B. Swinkels, C. Belczynski, C. Bradaschia, C. Buy, C. Campeggi, C. Lazzaro, C. Magazz\\`u, C. Michel, C. Palomba, C. Van Den Broeck, D. Aisa, D. Bersanetti, D. Bondi, D. Buskulic, D. Hofman, D. Meacher, D. Passuello, D. Rosi\\'nska, D. Sentenac, D. S. Rabeling, D. Verkindt, E. Calloni, E. Cesarini, E. Chassande-Mottin, E. Coccia, E. Cuoco, E. Genin, E. Hennes, E. Majorana, E. Pacaud, E. Saracco, F. Acernese, F. Barone, F. Basti, F. Bondu, F. Carbognani, F. Cavalier, F. Cleva, F. Ferrini, F. Fidecaro, F. Frasconi, F. Garufi, F. K\\'ef\\'elian, F. Marchesoni, F. Marion, F. Martelli, F. Mezzani, F. Mul, F. Nocera, F. Paoletti, F. Piergiovanni, F. Ricci, F. Robinet, F. Schimmel, F. Travasso, F. Vetrano, G. A. Prodi, G. Balestri, G. Ballardin, G. Bogaert, G. Cagnoli, G. Cella, G. Debreczeni, G. Endr\\H{o}czi, G. Gemme, G. Greco, G. Hemming, G. Losurdo, G. M. Guidi, G. Nelemans, G. Pillant, G. Vajente, G. Vedovato, G. Visser, H. Dereli, H. Heitmann, H. J. Bulten, H. Vocca, I. Ferrante, I. Fiori, I. Kowalska, I. Maksimovic, I. Nardecchia, I. Neri, I. R\\'acz, J. Amarni, J. Degallaix, J.-D. Fournier, J. F. J. van den Brand, J. Harms, J. Marque, J. Meidam, J.-P. Baronick, J.-P. Coulon, J.-P. Zendri, J. van Heijningen, J. Veitch, J.-Y. Vinet, K. Agatsuma, K. Siellez, L. Bonelli, L. Bosi, L. Di Fiore, L. Gammaitoni, L. Giacobone, L. Martellini, L. Milano, L. Naticchioni, L. Pinard, L. Rolland, L.-W. Wei, M. A. Bizouard, M. Agathos, M. Barsuglia, M. Bejger, M. Bitossi, M. Blom, M. Boer, M. Branchesi, M. Colombini, M. Davier, M. Doets, M. Drago, M. Ducrot, M. F. Nagy, M. Gaspard, M. G. Beker, M. Granata, M. Kasprzack, M. Kraan, M. Leonardi, M. Lorenzini, M. Mantovani, M. Mohan, M. Montani, M. Neri, M. Perciballi, M. Pichot, M. Prijatelj, M. Punturo, M. Razzano, M. Tacca, M. Tonelli, M. Turconi, M. van Beuzekom, M. Vas\\'uth, M. V. van der Sluys, M. Was, M. Yvert, N. Allemandou, N. Leroy, N. Letendre, N. Man, N. Morgado, N. Straniero, N. van Bakel, P. Astone, P.-F. Cohadon, P. Groot, P. Hello, P. Jaranowski, P. Puppo, P. Rapagnani, P. Ruggi, R. Bonnand, R. Cavalieri, R. Day, R. De Rosa, R. Flaminio, R. Gouaty, R.J.G. Jonker, R. Passaquieti, R. Poggiani, R. Romano, R. Ward, S. Bloemen, S. Chua, S. D'Antonio, S. Del\\'eglise, S. Farinon, S. Franco, S. Frasca, S. Ghosh, S. Petit, S. Shah, T. Bouedo, T. Briant, T. Bulik, T. G. F. Li, Th. S. Bauer, T. Regimbau, V. Bavigadda, V. Boschi, V. Brisson, V. Dattilo, V. Dolique, V. Fafone, (Virgo Collaboration), V. Loriette, V. Malvezzi, V. Mangano, V. Re, V. Sequino, W. Del Pozzo, Y. Minenkov","submitted_at":"2014-08-18T11:19:22Z","abstract_excerpt":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude. The project is now in an advanced construction phase and the assembly and integration will be completed by the end of 2015. Advanced Virgo will be part of a network with the two Advanced LIGO detectors in the US and GEO HF in Germany, with the goal of contributing to the early detections of gravitational waves and to opening a new observation window on the universe. In this pa"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The technical upgrades described will deliver the targeted sensitivity improvement once assembly and integration are completed by the end of 2015, without major unforeseen technical or operational limitations.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Advanced Virgo upgrades the Virgo detector to increase the number of observable galaxies for gravitational wave detection by three orders of magnitude.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"121ce9c197d11cef5fc8d5821de5707311126bb961c05e9823cc06399abe525d"},"source":{"id":"1408.3978","kind":"arxiv","version":3},"verdict":{"id":"dc896474-a7ca-4759-b3fe-fdbcdeee8628","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-13T06:36:34.532373Z","strongest_claim":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude.","one_line_summary":"Advanced Virgo upgrades the Virgo detector to increase the number of observable galaxies for gravitational wave detection by three orders of magnitude.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The technical upgrades described will deliver the targeted sensitivity improvement once assembly and integration are completed by the end of 2015, without major unforeseen technical or operational limitations.","pith_extraction_headline":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1408.3978/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":95,"sample":[{"doi":"","year":2012,"title":"The Virgo collaboration, JINST, 7, 3012 (2012)","work_id":"b942a835-ea7a-4a48-aac8-636d95a8b237","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"G. Gonzalez, A. Vicer´ e, L. Wen,Front. Phys., 8, 771 (2013)","work_id":"c01cc0c3-58ee-4411-b571-55b3981ba066","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2012,"title":"M. Cerdonio, G. Losurdo, Rivista del Nuovo Cimento , 35, 389 (2012)","work_id":"99a35ed4-b67e-43af-878c-dfc4f13ecbee","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2011,"title":"M. Pitkin, S. Reid, S. Rowan, J. Hough, Living reviews in relativity , 14, 5 (2011)","work_id":"85de2144-1dba-449f-9a6a-b843ef30ae0f","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"The LIGO Scientific Collaboration, this issue","work_id":"6731454a-389f-49c7-a96d-9e90a1e6bc59","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":95,"snapshot_sha256":"c4b311fa487d709a44a7a3d1999716cf9e908d8e100ecada0aa113dbd082d4b9","internal_anchors":0},"formal_canon":{"evidence_count":3,"snapshot_sha256":"236c9a816250c7373de52e7882a323a7104dc0c748b98830d7721a7636e87100"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"dc896474-a7ca-4759-b3fe-fdbcdeee8628"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T19:16:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qxQFJzwxhrzrHuPogA0LnrSVbkmZFA3bKYl04uCzPBvECmTL6XcwfIpGH/3WdOKLiPQ3ncfCjToTxTaPy0HWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T08:11:59.898228Z"},"content_sha256":"66a8322aa5166d0212ef39bc4c1deb329963608209c267105a00aa462777f6d9","schema_version":"1.0","event_id":"sha256:66a8322aa5166d0212ef39bc4c1deb329963608209c267105a00aa462777f6d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/bundle.json","state_url":"https://pith.science/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-20T08:11:59Z","links":{"resolver":"https://pith.science/pith/4R37GQJN2EG3Z2NWB3FKGSTE55","bundle":"https://pith.science/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/bundle.json","state":"https://pith.science/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4R37GQJN2EG3Z2NWB3FKGSTE55/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4R37GQJN2EG3Z2NWB3FKGSTE55","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4833b89eddbc11e2fcec73baf0675976d497098d7280ff7dbfb40f4f00cc0d6b","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-08-18T11:19:22Z","title_canon_sha256":"3d36babf38f95ad7048bf94a5d1d8633b4667a382187e9e06a9bca04699194e2"},"schema_version":"1.0","source":{"id":"1408.3978","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3978","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3978v3","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3978","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_12","alias_value":"4R37GQJN2EG3","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_16","alias_value":"4R37GQJN2EG3Z2NW","created_at":"2026-07-04T19:16:21Z"},{"alias_kind":"pith_short_8","alias_value":"4R37GQJN","created_at":"2026-07-04T19:16:21Z"}],"graph_snapshots":[{"event_id":"sha256:66a8322aa5166d0212ef39bc4c1deb329963608209c267105a00aa462777f6d9","target":"graph","created_at":"2026-07-04T19:16:21Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The technical upgrades described will deliver the targeted sensitivity improvement once assembly and integration are completed by the end of 2015, without major unforeseen technical or operational limitations."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Advanced Virgo upgrades the Virgo detector to increase the number of observable galaxies for gravitational wave detection by three orders of magnitude."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies."}],"snapshot_sha256":"121ce9c197d11cef5fc8d5821de5707311126bb961c05e9823cc06399abe525d"},"formal_canon":{"evidence_count":3,"snapshot_sha256":"236c9a816250c7373de52e7882a323a7104dc0c748b98830d7721a7636e87100"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1408.3978/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude. The project is now in an advanced construction phase and the assembly and integration will be completed by the end of 2015. Advanced Virgo will be part of a network with the two Advanced LIGO detectors in the US and GEO HF in Germany, with the goal of contributing to the early detections of gravitational waves and to opening a new observation window on the universe. In this pa","authors_text":"A. Allocca, A. Basti, A. Bertolini, A. Brillet, A. Chincarini, A. Chiummo, A. Colla, A. Conte, A. Dalmaz, A. Di Lieto, A. Di Virgilio, A. Gatto, A. Gennai, A. Giazotto, A. Heidmann, A. Kr\\'olak, A. Kutynia, A. Masserot, A. Moggi, A. Paoli, A. Pasqualetti, A Piluso, A. Rocchi, A. Vicer\\'e, A. Zadro\\.zny, B. Canuel, B. Gendre, B. Lieunard, B. Mours, B. Sassolas, B. Swinkels, C. Belczynski, C. Bradaschia, C. Buy, C. Campeggi, C. Lazzaro, C. Magazz\\`u, C. Michel, C. Palomba, C. Van Den Broeck, D. Aisa, D. Bersanetti, D. Bondi, D. Buskulic, D. Hofman, D. Meacher, D. Passuello, D. Rosi\\'nska, D. Sentenac, D. S. Rabeling, D. Verkindt, E. Calloni, E. Cesarini, E. Chassande-Mottin, E. Coccia, E. Cuoco, E. Genin, E. Hennes, E. Majorana, E. Pacaud, E. Saracco, F. Acernese, F. Barone, F. Basti, F. Bondu, F. Carbognani, F. Cavalier, F. Cleva, F. Ferrini, F. Fidecaro, F. Frasconi, F. Garufi, F. K\\'ef\\'elian, F. Marchesoni, F. Marion, F. Martelli, F. Mezzani, F. Mul, F. Nocera, F. Paoletti, F. Piergiovanni, F. Ricci, F. Robinet, F. Schimmel, F. Travasso, F. Vetrano, G. A. Prodi, G. Balestri, G. Ballardin, G. Bogaert, G. Cagnoli, G. Cella, G. Debreczeni, G. Endr\\H{o}czi, G. Gemme, G. Greco, G. Hemming, G. Losurdo, G. M. Guidi, G. Nelemans, G. Pillant, G. Vajente, G. Vedovato, G. Visser, H. Dereli, H. Heitmann, H. J. Bulten, H. Vocca, I. Ferrante, I. Fiori, I. Kowalska, I. Maksimovic, I. Nardecchia, I. Neri, I. R\\'acz, J. Amarni, J. Degallaix, J.-D. Fournier, J. F. J. van den Brand, J. Harms, J. Marque, J. Meidam, J.-P. Baronick, J.-P. Coulon, J.-P. Zendri, J. van Heijningen, J. Veitch, J.-Y. Vinet, K. Agatsuma, K. Siellez, L. Bonelli, L. Bosi, L. Di Fiore, L. Gammaitoni, L. Giacobone, L. Martellini, L. Milano, L. Naticchioni, L. Pinard, L. Rolland, L.-W. Wei, M. A. Bizouard, M. Agathos, M. Barsuglia, M. Bejger, M. Bitossi, M. Blom, M. Boer, M. Branchesi, M. Colombini, M. Davier, M. Doets, M. Drago, M. Ducrot, M. F. Nagy, M. Gaspard, M. G. Beker, M. Granata, M. Kasprzack, M. Kraan, M. Leonardi, M. Lorenzini, M. Mantovani, M. Mohan, M. Montani, M. Neri, M. Perciballi, M. Pichot, M. Prijatelj, M. Punturo, M. Razzano, M. Tacca, M. Tonelli, M. Turconi, M. van Beuzekom, M. Vas\\'uth, M. V. van der Sluys, M. Was, M. Yvert, N. Allemandou, N. Leroy, N. Letendre, N. Man, N. Morgado, N. Straniero, N. van Bakel, P. Astone, P.-F. Cohadon, P. Groot, P. Hello, P. Jaranowski, P. Puppo, P. Rapagnani, P. Ruggi, R. Bonnand, R. Cavalieri, R. Day, R. De Rosa, R. Flaminio, R. Gouaty, R.J.G. Jonker, R. Passaquieti, R. Poggiani, R. Romano, R. Ward, S. Bloemen, S. Chua, S. D'Antonio, S. Del\\'eglise, S. Farinon, S. Franco, S. Frasca, S. Ghosh, S. Petit, S. Shah, T. Bouedo, T. Briant, T. Bulik, T. G. F. Li, Th. S. Bauer, T. Regimbau, V. Bavigadda, V. Boschi, V. Brisson, V. Dattilo, V. Dolique, V. Fafone, (Virgo Collaboration), V. Loriette, V. Malvezzi, V. Mangano, V. Re, V. Sequino, W. Del Pozzo, Y. Minenkov","cross_cats":["physics.ins-det"],"headline":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-08-18T11:19:22Z","title":"Advanced Virgo: a 2nd generation interferometric gravitational wave detector"},"references":{"count":95,"internal_anchors":0,"resolved_work":95,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"The Virgo collaboration, JINST, 7, 3012 (2012)","work_id":"b942a835-ea7a-4a48-aac8-636d95a8b237","year":2012},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"G. Gonzalez, A. Vicer´ e, L. Wen,Front. Phys., 8, 771 (2013)","work_id":"c01cc0c3-58ee-4411-b571-55b3981ba066","year":2013},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"M. Cerdonio, G. Losurdo, Rivista del Nuovo Cimento , 35, 389 (2012)","work_id":"99a35ed4-b67e-43af-878c-dfc4f13ecbee","year":2012},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"M. Pitkin, S. Reid, S. Rowan, J. Hough, Living reviews in relativity , 14, 5 (2011)","work_id":"85de2144-1dba-449f-9a6a-b843ef30ae0f","year":2011},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"The LIGO Scientific Collaboration, this issue","work_id":"6731454a-389f-49c7-a96d-9e90a1e6bc59","year":null}],"snapshot_sha256":"c4b311fa487d709a44a7a3d1999716cf9e908d8e100ecada0aa113dbd082d4b9"},"source":{"id":"1408.3978","kind":"arxiv","version":3},"verdict":{"created_at":"2026-05-13T06:36:34.532373Z","id":"dc896474-a7ca-4759-b3fe-fdbcdeee8628","model_set":{"reader":"grok-4.3"},"one_line_summary":"Advanced Virgo upgrades the Virgo detector to increase the number of observable galaxies for gravitational wave detection by three orders of magnitude.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Advanced Virgo upgrades the Virgo detector to detect gravitational waves from three orders of magnitude more galaxies.","strongest_claim":"Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude.","weakest_assumption":"The technical upgrades described will deliver the targeted sensitivity improvement once assembly and integration are completed by the end of 2015, without major unforeseen technical or operational limitations."}},"verdict_id":"dc896474-a7ca-4759-b3fe-fdbcdeee8628"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:7ed0891f5157ad647bbae74b49e07fa52709d50842d522ea8e4211923c257d36","target":"record","created_at":"2026-07-04T19:16:21Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4833b89eddbc11e2fcec73baf0675976d497098d7280ff7dbfb40f4f00cc0d6b","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-08-18T11:19:22Z","title_canon_sha256":"3d36babf38f95ad7048bf94a5d1d8633b4667a382187e9e06a9bca04699194e2"},"schema_version":"1.0","source":{"id":"1408.3978","kind":"arxiv","version":3}},"canonical_sha256":"e477f3412dd10dbce9b60ecaa34a64ef4cccc173df74c7d0481d517f2cbc2ae5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e477f3412dd10dbce9b60ecaa34a64ef4cccc173df74c7d0481d517f2cbc2ae5","first_computed_at":"2026-07-04T19:16:21.418742Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T19:16:21.418742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6NVtW38UdnPvRavMoC65Q5bfpx0Z/3znflvMWG/MmtJtLxSfOnBqOtA2dqmhrMA1GAt14gv56FMqqvRz++AKBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T19:16:21.419276Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.3978","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ed0891f5157ad647bbae74b49e07fa52709d50842d522ea8e4211923c257d36","sha256:66a8322aa5166d0212ef39bc4c1deb329963608209c267105a00aa462777f6d9"],"state_sha256":"bb99f4c7031e6686cfb42bd2e2321db7aaaa193866110c2d4b4fd046d4dace20"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cdVVaC9FJUD8+BR3N9YCi0ldVJayaI0ULb96F+y3sYdYGGKRI7ls0bZQZuih+1wKEAv5Pc1QsD+liKCRmT0lBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-20T08:11:59.900818Z","bundle_sha256":"bdcd57b2f1e3d751df807a59d57711e41b10a2df928c63b0e99f56c13cd3f6f6"}}