{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SELATP4ROT5PF3FK2IF2KE7XOP","short_pith_number":"pith:SELATP4R","canonical_record":{"source":{"id":"1805.03234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-05-08T19:07:03Z","cross_cats_sorted":[],"title_canon_sha256":"e5eaeba3a1e778f3a8627fcd99b4bbdfd7365c7e2d1946fea26d8d3cf0c92f4f","abstract_canon_sha256":"e9c2c395a7eeb7219bd61d2581e3a6c5d15d98055ea621096701162f0145ec04"},"schema_version":"1.0"},"canonical_sha256":"911609bf9174faf2ecaad20ba513f773d12cf9596db591ac2f331ae65301bf79","source":{"kind":"arxiv","id":"1805.03234","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03234","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03234v2","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03234","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"pith_short_12","alias_value":"SELATP4ROT5P","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SELATP4ROT5PF3FK","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SELATP4R","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SELATP4ROT5PF3FK2IF2KE7XOP","target":"record","payload":{"canonical_record":{"source":{"id":"1805.03234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-05-08T19:07:03Z","cross_cats_sorted":[],"title_canon_sha256":"e5eaeba3a1e778f3a8627fcd99b4bbdfd7365c7e2d1946fea26d8d3cf0c92f4f","abstract_canon_sha256":"e9c2c395a7eeb7219bd61d2581e3a6c5d15d98055ea621096701162f0145ec04"},"schema_version":"1.0"},"canonical_sha256":"911609bf9174faf2ecaad20ba513f773d12cf9596db591ac2f331ae65301bf79","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:51.796498Z","signature_b64":"Qt+rQJ3+7GKxQPASUny8DG/90uFfE4eWiH9LVF3/iTjO8Y9D5fg0tpNPoNE8lJjsykhZMGlskV0ZnuhIcZCxCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"911609bf9174faf2ecaad20ba513f773d12cf9596db591ac2f331ae65301bf79","last_reissued_at":"2026-05-18T00:10:51.795880Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:51.795880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.03234","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:10:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VVc7y0M0OHs+7Y62XsdQRR2hoKrh6y2EbyBiqQWUTQOIv9A26kziSlEDRzs6YS26PkUUb95YIHR+GNAf+IOdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T11:54:17.534260Z"},"content_sha256":"74c3d3e84ac157a6dffbbccf9706cdd86da60ac10238fde217fbe97583f39145","schema_version":"1.0","event_id":"sha256:74c3d3e84ac157a6dffbbccf9706cdd86da60ac10238fde217fbe97583f39145"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SELATP4ROT5PF3FK2IF2KE7XOP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Andronic, A. Deisting, \\'A. Gera, A.G. Knospe, A. Grein, A.J. Castro, A.K. Dubey, A. Mar\\'in, A. Mathis, A. Matyja, A. Oskarsson, A. Rehman, A. Timmins, A. Utrobicic, A. Velure, B. Hohlweger, B. Ketzer, B.K. Nandi, B. Schaefer, B. Sitar, B.S. Nielsen, B. Voss, B. Windelband, C.A. Pruneau, C. Garabatos, C.L. Britton, C. Lippmann, C. Markert, C. Nattrass, C. Schmidt, C. Zhao, D. Just, D.L. Mihaylov, D. Miskowiec, D. R\\\"ohrich, D. Silvermyr, D. Varga, D. Vranic, E. Bartsch, E. Hellb\\\"ar, E.J. Brucken, E. Kangasaho, E. Stenlund, F. Erhardt, F. Liebske, F. Pompei, F. Sozzi, G. Bencedi, G.G. Barnaf\\\"oldi, G. Hamar, G. Pai\\'c, G. Tambave, H. Appelsh\\\"auser, H. Caines, H. Hamagaki, H. Helstrup, H.M. Ljunggren, H. Murakami, H. Natal da Luz, H.R. Schmidt, H. Schulte, I. Selyuzhenkov, I. Szarka, J. Alme, J. Hehner, J.J. Gaardh{\\o}je, J. Lien, J. Mitra, J. Mulligan, J. Otwinowski, J. Putschke, J. Rak, J. Rasson, J. Saini, J. Schambach, J. Stachel, J.W. Harris, J. Wiechula, J. Wikne, K.F. Read, K. M\\\"unning, K. Oyama, K. R{\\o}ed, K. Schweda, K. Terasaki, K. Ullaland, L. Bianchi, L. Boldizs\\'ar, L. Bratrud, L. Fabbietti, L.G. Clonts, L. Kumar, L. Lautner, L. Ol\\'ah, L. Pinsky, M. Arslandok, M. Ball, M. Berger, M. Bregant, M. Engel, M.G. Munhoz, M.G. Poghosyan, M. Ivanov, M. Jung, M. Kowalski, M.M. Aggarwal, M. Meres, M. Nicassio, M. Pikna, M. Planinic, N.B. Ezell, N. Bialas, N. Poljak, N. Sharma, N. Smirnov, N.V Schmidt, O. Grachov, P. Bialas, P. Braun-Munzinger, P. Christiansen, P. Gasik, P. Ghosh, P. Gl\\\"assel, P. Hauer, P.K. Sahu, P. Malzacher, P. Strmen, R.A. Negrao De Oliveira, R. Averbeck, R. Bellwied, R. Ehlers, R.H. Munzer, R. Keidel, R. Lang, R. Langoy, R. Majka, R.N. Patra, R.N. Singaraju, R. Renfordt, R. Sahoo, R. Varma, S. Aiola, S.A. Khan, S. Biswas, S. Chattopadhyay, S. Das, S. Dash, S. Dittrich, S.K. Ghosh, S. Kirsch, S. Klewin, S.K. Prasad, S. Mahmood, S. Masciocchi, S. Muhuri, S.P. Sorensen, S. Raha, S. Sahoo, S. Scheid, S. Voloshin, S. Winkler, T. Alt, T.E. Hilden, T. Gunji, T. Klemenz, T.K. Nayak, T. Mahmoud, T.M. Cormier, T. Mittelstaedt, T. Morhardt, T. Richert, T. Rudzki, U. Frankenfeld, V. Anguelov, V. Peskov, V. Ratza, V. Vislavicius, W. Amend, W.J. Llope, Z. Ahammed","submitted_at":"2018-05-08T19:07:03Z","abstract_excerpt":"A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Propor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03234","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:10:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"spq388X8ijbSGA0ctJHF/ujlRdiIXMZEqkQeGOvuuf0ObG9Fc7OZJEbYbphwjU7qGsk6YYpBtkA7iNT2rB0yAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T11:54:17.534892Z"},"content_sha256":"4a07b811ad641065f456ddb136db6ed4900acc5ed36a4b136c9dff3e3fb8f58e","schema_version":"1.0","event_id":"sha256:4a07b811ad641065f456ddb136db6ed4900acc5ed36a4b136c9dff3e3fb8f58e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SELATP4ROT5PF3FK2IF2KE7XOP/bundle.json","state_url":"https://pith.science/pith/SELATP4ROT5PF3FK2IF2KE7XOP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SELATP4ROT5PF3FK2IF2KE7XOP/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":"2026-08-04T11:54:17Z","links":{"resolver":"https://pith.science/pith/SELATP4ROT5PF3FK2IF2KE7XOP","bundle":"https://pith.science/pith/SELATP4ROT5PF3FK2IF2KE7XOP/bundle.json","state":"https://pith.science/pith/SELATP4ROT5PF3FK2IF2KE7XOP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SELATP4ROT5PF3FK2IF2KE7XOP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SELATP4ROT5PF3FK2IF2KE7XOP","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":"e9c2c395a7eeb7219bd61d2581e3a6c5d15d98055ea621096701162f0145ec04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-05-08T19:07:03Z","title_canon_sha256":"e5eaeba3a1e778f3a8627fcd99b4bbdfd7365c7e2d1946fea26d8d3cf0c92f4f"},"schema_version":"1.0","source":{"id":"1805.03234","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03234","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03234v2","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03234","created_at":"2026-05-18T00:10:51Z"},{"alias_kind":"pith_short_12","alias_value":"SELATP4ROT5P","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SELATP4ROT5PF3FK","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SELATP4R","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:4a07b811ad641065f456ddb136db6ed4900acc5ed36a4b136c9dff3e3fb8f58e","target":"graph","created_at":"2026-05-18T00:10:51Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Propor","authors_text":"A. Andronic, A. Deisting, \\'A. Gera, A.G. Knospe, A. Grein, A.J. Castro, A.K. Dubey, A. Mar\\'in, A. Mathis, A. Matyja, A. Oskarsson, A. Rehman, A. Timmins, A. Utrobicic, A. Velure, B. Hohlweger, B. Ketzer, B.K. Nandi, B. Schaefer, B. Sitar, B.S. Nielsen, B. Voss, B. Windelband, C.A. Pruneau, C. Garabatos, C.L. Britton, C. Lippmann, C. Markert, C. Nattrass, C. Schmidt, C. Zhao, D. Just, D.L. Mihaylov, D. Miskowiec, D. R\\\"ohrich, D. Silvermyr, D. Varga, D. Vranic, E. Bartsch, E. Hellb\\\"ar, E.J. Brucken, E. Kangasaho, E. Stenlund, F. Erhardt, F. Liebske, F. Pompei, F. Sozzi, G. Bencedi, G.G. Barnaf\\\"oldi, G. Hamar, G. Pai\\'c, G. Tambave, H. Appelsh\\\"auser, H. Caines, H. Hamagaki, H. Helstrup, H.M. Ljunggren, H. Murakami, H. Natal da Luz, H.R. Schmidt, H. Schulte, I. Selyuzhenkov, I. Szarka, J. Alme, J. Hehner, J.J. Gaardh{\\o}je, J. Lien, J. Mitra, J. Mulligan, J. Otwinowski, J. Putschke, J. Rak, J. Rasson, J. Saini, J. Schambach, J. Stachel, J.W. Harris, J. Wiechula, J. Wikne, K.F. Read, K. M\\\"unning, K. Oyama, K. R{\\o}ed, K. Schweda, K. Terasaki, K. Ullaland, L. Bianchi, L. Boldizs\\'ar, L. Bratrud, L. Fabbietti, L.G. Clonts, L. Kumar, L. Lautner, L. Ol\\'ah, L. Pinsky, M. Arslandok, M. Ball, M. Berger, M. Bregant, M. Engel, M.G. Munhoz, M.G. Poghosyan, M. Ivanov, M. Jung, M. Kowalski, M.M. Aggarwal, M. Meres, M. Nicassio, M. Pikna, M. Planinic, N.B. Ezell, N. Bialas, N. Poljak, N. Sharma, N. Smirnov, N.V Schmidt, O. Grachov, P. Bialas, P. Braun-Munzinger, P. Christiansen, P. Gasik, P. Ghosh, P. Gl\\\"assel, P. Hauer, P.K. Sahu, P. Malzacher, P. Strmen, R.A. Negrao De Oliveira, R. Averbeck, R. Bellwied, R. Ehlers, R.H. Munzer, R. Keidel, R. Lang, R. Langoy, R. Majka, R.N. Patra, R.N. Singaraju, R. Renfordt, R. Sahoo, R. Varma, S. Aiola, S.A. Khan, S. Biswas, S. Chattopadhyay, S. Das, S. Dash, S. Dittrich, S.K. Ghosh, S. Kirsch, S. Klewin, S.K. Prasad, S. Mahmood, S. Masciocchi, S. Muhuri, S.P. Sorensen, S. Raha, S. Sahoo, S. Scheid, S. Voloshin, S. Winkler, T. Alt, T.E. Hilden, T. Gunji, T. Klemenz, T.K. Nayak, T. Mahmoud, T.M. Cormier, T. Mittelstaedt, T. Morhardt, T. Richert, T. Rudzki, U. Frankenfeld, V. Anguelov, V. Peskov, V. Ratza, V. Vislavicius, W. Amend, W.J. Llope, Z. Ahammed","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-05-08T19:07:03Z","title":"Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03234","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:74c3d3e84ac157a6dffbbccf9706cdd86da60ac10238fde217fbe97583f39145","target":"record","created_at":"2026-05-18T00:10:51Z","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":"e9c2c395a7eeb7219bd61d2581e3a6c5d15d98055ea621096701162f0145ec04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-05-08T19:07:03Z","title_canon_sha256":"e5eaeba3a1e778f3a8627fcd99b4bbdfd7365c7e2d1946fea26d8d3cf0c92f4f"},"schema_version":"1.0","source":{"id":"1805.03234","kind":"arxiv","version":2}},"canonical_sha256":"911609bf9174faf2ecaad20ba513f773d12cf9596db591ac2f331ae65301bf79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"911609bf9174faf2ecaad20ba513f773d12cf9596db591ac2f331ae65301bf79","first_computed_at":"2026-05-18T00:10:51.795880Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:51.795880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qt+rQJ3+7GKxQPASUny8DG/90uFfE4eWiH9LVF3/iTjO8Y9D5fg0tpNPoNE8lJjsykhZMGlskV0ZnuhIcZCxCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:51.796498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.03234","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74c3d3e84ac157a6dffbbccf9706cdd86da60ac10238fde217fbe97583f39145","sha256:4a07b811ad641065f456ddb136db6ed4900acc5ed36a4b136c9dff3e3fb8f58e"],"state_sha256":"17a861c13c3970ea74f63b097bb4400e828ea8b07e3a9d4502a79599cd5143d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pDvBO2t5zm8VA6vkX6xQNYDHPES3+XYMlrCb+M7uy3YU26I5jZEYniMJiF8I6rEmehDKZCldWD4mbJ9UHzs4AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T11:54:17.540663Z","bundle_sha256":"8c1dd9cee11e4f103a5ed126b9e7aba0c6037417e9f163f1f7dee931ed1b6c63"}}