{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:W4KRQQAOPY5TDFPIXGJ5YRCBNP","short_pith_number":"pith:W4KRQQAO","canonical_record":{"source":{"id":"1705.01828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-05-04T13:15:44Z","cross_cats_sorted":[],"title_canon_sha256":"f21dcfb0c9d56d526e0b46ceded044e46757d62383f461ee2e21c0571b94d110","abstract_canon_sha256":"77ddcb4ab81369c9e8fafc1a5149032ee5ae5dfa1b9ea789678984f28aa709d3"},"schema_version":"1.0"},"canonical_sha256":"b71518400e7e3b3195e8b993dc44416be74c5b1e0f118fd363a3614aca913925","source":{"kind":"arxiv","id":"1705.01828","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.01828","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"arxiv_version","alias_value":"1705.01828v1","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.01828","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"pith_short_12","alias_value":"W4KRQQAOPY5T","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"W4KRQQAOPY5TDFPI","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"W4KRQQAO","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:W4KRQQAOPY5TDFPIXGJ5YRCBNP","target":"record","payload":{"canonical_record":{"source":{"id":"1705.01828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-05-04T13:15:44Z","cross_cats_sorted":[],"title_canon_sha256":"f21dcfb0c9d56d526e0b46ceded044e46757d62383f461ee2e21c0571b94d110","abstract_canon_sha256":"77ddcb4ab81369c9e8fafc1a5149032ee5ae5dfa1b9ea789678984f28aa709d3"},"schema_version":"1.0"},"canonical_sha256":"b71518400e7e3b3195e8b993dc44416be74c5b1e0f118fd363a3614aca913925","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:20.650789Z","signature_b64":"BYazWdf3slf1aQhwIY6lCojqhCkiL0Itk5/cqxZrb4bCMzoullvZCR316+Dpf2MG4GNYjlQMdbquaxxkbNTJBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b71518400e7e3b3195e8b993dc44416be74c5b1e0f118fd363a3614aca913925","last_reissued_at":"2026-05-18T00:25:20.650056Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:20.650056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.01828","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:25:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qukr79ypA6oiN1rHoP6YwwXjTJS6XMg4+E8MP3sYNEh6F3j+9z9v0UAjiCns4n6HkuFE6Tb6CwAu35AB3PTJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:22:02.453378Z"},"content_sha256":"9049784229129e35e153418e584eb42bcd031acbf82b57261b16e72491593841","schema_version":"1.0","event_id":"sha256:9049784229129e35e153418e584eb42bcd031acbf82b57261b16e72491593841"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:W4KRQQAOPY5TDFPIXGJ5YRCBNP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Material radioassay and selection for the XENON1T dark matter experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Brown, A. D. Ferella, A. Di Giovanni, A. Fieguth, A. Gallo Rosso, A. Kish, A. Manfredini, A. Molinario, A. P. Colijn, A. Rizzo, A. Stein, A. Tiseni, B. Bauermeister, B. Kaminsky, B. Miguez, B. Pelssers, C. D. Tunnell, C. Geis, C. Grignon, C. Hasterok, C. Reuter, C. Weinheimer, D. Cichon, D. Coderre, D. Franco, D. Lellouch, D. Masson, D. Mayani, D. Thers, E. Brown, E. Hogenbirk, E. Shockley, F. Agostini, F. Arneodo, F. D. Amaro, F. Gao, F. Piastra, F. V. Massoli, G. Bruno, G. Eurin, G. Kessler, G. Plante, G. Sartorelli, G. Trinchero, H. Landsman, H. Simgen, H. Wang, I. Maris, J. Aalbers, J. A. M. Lopes, J. Calven, J. Conrad, J. Fei, J. Masbou, J. M. F. dos Santos, J. M. R. Cardoso, J. Naganoma, J. P. Cussonneau, J. Pienaar, J. Schreiner, J. Wulf, J. Ye, K. Micheneau, K. Ni, L. Baudis, L. B\\\"utikofer, L. Grandi, L. Levinson, L. Rauch, L. Scotto Lavina, L. W. Goetzke, M. Alfonsi, M. Anthony, M. Cervantes, M.-C. Piro, M. Galloway, M. Garbini, M. Laubenstein, M. L. Benabderrahmane, M. Le Calloch, M. Lindner, M. Messina, M. Murra, M. P. Decowski, M. Scheibelhut, M. Schumann, M. Selvi, M. Silva, M. v. Sivers, N. Priel, N. Rupp, N. Upole, P. A. Breur, P. Barrow, P. de Perio, P. Di Gangi, P. Pakarha, P. Shagin, Q. Lin, R. Budnik, R. F. Lang, R. Itay, R. Persiani, R. Saldanha, S. Bruenner, S. Diglio, S. Lindemann, S. Nisi, S. Reichard, S. Rosendahl, S. Schindler, T. Berger, T. Marrod\\'an Undagoitia, U. Oberlack, V. Pizzella, W. Fulgione, XENON Collaboration: E. Aprile, Y. Wei, Y. Zhang, Z. Greene","submitted_at":"2017-05-04T13:15:44Z","abstract_excerpt":"The XENON1T dark matter experiment aims to detect Weakly Interacting Massive Particles (WIMPs) through low-energy interactions with xenon atoms. To detect such a rare event necessitates the use of radiopure materials to minimize the number of background events within the expected WIMP signal region. In this paper we report the results of an extensive material radioassay campaign for the XENON1T experiment. Using gamma-ray spectroscopy and mass spectrometry techniques, systematic measurements of trace radioactive impurities in over one hundred samples within a wide range of materials were perfo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.01828","kind":"arxiv","version":1},"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":"2026-05-18T00:25:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bwAzzRJ9RpYIM5iRBuGYSVv4x0CX8jszRK2tsjifiCj4ezRFVyTkD7z/3hAgSsVpHVPvJDVsgqqoLrv9kqPxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:22:02.454034Z"},"content_sha256":"b03799605fccf3f89c1c3699c1137a80b54e24b97af3829c6205c9f527d6a63d","schema_version":"1.0","event_id":"sha256:b03799605fccf3f89c1c3699c1137a80b54e24b97af3829c6205c9f527d6a63d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/bundle.json","state_url":"https://pith.science/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/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":"2026-05-30T07:22:02Z","links":{"resolver":"https://pith.science/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP","bundle":"https://pith.science/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/bundle.json","state":"https://pith.science/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W4KRQQAOPY5TDFPIXGJ5YRCBNP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:W4KRQQAOPY5TDFPIXGJ5YRCBNP","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":"77ddcb4ab81369c9e8fafc1a5149032ee5ae5dfa1b9ea789678984f28aa709d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-05-04T13:15:44Z","title_canon_sha256":"f21dcfb0c9d56d526e0b46ceded044e46757d62383f461ee2e21c0571b94d110"},"schema_version":"1.0","source":{"id":"1705.01828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.01828","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"arxiv_version","alias_value":"1705.01828v1","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.01828","created_at":"2026-05-18T00:25:20Z"},{"alias_kind":"pith_short_12","alias_value":"W4KRQQAOPY5T","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"W4KRQQAOPY5TDFPI","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"W4KRQQAO","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:b03799605fccf3f89c1c3699c1137a80b54e24b97af3829c6205c9f527d6a63d","target":"graph","created_at":"2026-05-18T00:25:20Z","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":"The XENON1T dark matter experiment aims to detect Weakly Interacting Massive Particles (WIMPs) through low-energy interactions with xenon atoms. To detect such a rare event necessitates the use of radiopure materials to minimize the number of background events within the expected WIMP signal region. In this paper we report the results of an extensive material radioassay campaign for the XENON1T experiment. Using gamma-ray spectroscopy and mass spectrometry techniques, systematic measurements of trace radioactive impurities in over one hundred samples within a wide range of materials were perfo","authors_text":"A. Brown, A. D. Ferella, A. Di Giovanni, A. Fieguth, A. Gallo Rosso, A. Kish, A. Manfredini, A. Molinario, A. P. Colijn, A. Rizzo, A. Stein, A. Tiseni, B. Bauermeister, B. Kaminsky, B. Miguez, B. Pelssers, C. D. Tunnell, C. Geis, C. Grignon, C. Hasterok, C. Reuter, C. Weinheimer, D. Cichon, D. Coderre, D. Franco, D. Lellouch, D. Masson, D. Mayani, D. Thers, E. Brown, E. Hogenbirk, E. Shockley, F. Agostini, F. Arneodo, F. D. Amaro, F. Gao, F. Piastra, F. V. Massoli, G. Bruno, G. Eurin, G. Kessler, G. Plante, G. Sartorelli, G. Trinchero, H. Landsman, H. Simgen, H. Wang, I. Maris, J. Aalbers, J. A. M. Lopes, J. Calven, J. Conrad, J. Fei, J. Masbou, J. M. F. dos Santos, J. M. R. Cardoso, J. Naganoma, J. P. Cussonneau, J. Pienaar, J. Schreiner, J. Wulf, J. Ye, K. Micheneau, K. Ni, L. Baudis, L. B\\\"utikofer, L. Grandi, L. Levinson, L. Rauch, L. Scotto Lavina, L. W. Goetzke, M. Alfonsi, M. Anthony, M. Cervantes, M.-C. Piro, M. Galloway, M. Garbini, M. Laubenstein, M. L. Benabderrahmane, M. Le Calloch, M. Lindner, M. Messina, M. Murra, M. P. Decowski, M. Scheibelhut, M. Schumann, M. Selvi, M. Silva, M. v. Sivers, N. Priel, N. Rupp, N. Upole, P. A. Breur, P. Barrow, P. de Perio, P. Di Gangi, P. Pakarha, P. Shagin, Q. Lin, R. Budnik, R. F. Lang, R. Itay, R. Persiani, R. Saldanha, S. Bruenner, S. Diglio, S. Lindemann, S. Nisi, S. Reichard, S. Rosendahl, S. Schindler, T. Berger, T. Marrod\\'an Undagoitia, U. Oberlack, V. Pizzella, W. Fulgione, XENON Collaboration: E. Aprile, Y. Wei, Y. Zhang, Z. Greene","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-05-04T13:15:44Z","title":"Material radioassay and selection for the XENON1T dark matter experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.01828","kind":"arxiv","version":1},"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":"sha256:9049784229129e35e153418e584eb42bcd031acbf82b57261b16e72491593841","target":"record","created_at":"2026-05-18T00:25:20Z","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":"77ddcb4ab81369c9e8fafc1a5149032ee5ae5dfa1b9ea789678984f28aa709d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-05-04T13:15:44Z","title_canon_sha256":"f21dcfb0c9d56d526e0b46ceded044e46757d62383f461ee2e21c0571b94d110"},"schema_version":"1.0","source":{"id":"1705.01828","kind":"arxiv","version":1}},"canonical_sha256":"b71518400e7e3b3195e8b993dc44416be74c5b1e0f118fd363a3614aca913925","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b71518400e7e3b3195e8b993dc44416be74c5b1e0f118fd363a3614aca913925","first_computed_at":"2026-05-18T00:25:20.650056Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:20.650056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BYazWdf3slf1aQhwIY6lCojqhCkiL0Itk5/cqxZrb4bCMzoullvZCR316+Dpf2MG4GNYjlQMdbquaxxkbNTJBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:20.650789Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.01828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9049784229129e35e153418e584eb42bcd031acbf82b57261b16e72491593841","sha256:b03799605fccf3f89c1c3699c1137a80b54e24b97af3829c6205c9f527d6a63d"],"state_sha256":"c68742b6861d3e10c2d262515533e9475a67cd455cc47d785a3bb7bd7d7f09f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qz0UKzXpvWg2axNBQYrErTgPvWiUcoUaRiXycNnpJG0xdj64uDgz96rmB6gZ3Jm75XvGLwxTXZBeO33shJKYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:22:02.459653Z","bundle_sha256":"4109124016683f110352f658c6f86581903be808a6b7fc72e22742b580f117fb"}}