{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:UWXA7MJEENL74VSFIXZOL6NQ5A","short_pith_number":"pith:UWXA7MJE","canonical_record":{"source":{"id":"1207.4369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-18T13:18:39Z","cross_cats_sorted":[],"title_canon_sha256":"e3a2aa853359f3e1ab5fb33c975d6c383f92f8c930b938d4842bb779a6638f1a","abstract_canon_sha256":"d0ebcfcab554318e993e536095dca34d8c36658a664132dffa64d0537df2d789"},"schema_version":"1.0"},"canonical_sha256":"a5ae0fb1242357fe564545f2e5f9b0e83fcfaf54004e91fa39f46e14ab129eb8","source":{"kind":"arxiv","id":"1207.4369","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.4369","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"arxiv_version","alias_value":"1207.4369v2","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4369","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"pith_short_12","alias_value":"UWXA7MJEENL7","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"UWXA7MJEENL74VSF","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"UWXA7MJE","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:UWXA7MJEENL74VSFIXZOL6NQ5A","target":"record","payload":{"canonical_record":{"source":{"id":"1207.4369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-18T13:18:39Z","cross_cats_sorted":[],"title_canon_sha256":"e3a2aa853359f3e1ab5fb33c975d6c383f92f8c930b938d4842bb779a6638f1a","abstract_canon_sha256":"d0ebcfcab554318e993e536095dca34d8c36658a664132dffa64d0537df2d789"},"schema_version":"1.0"},"canonical_sha256":"a5ae0fb1242357fe564545f2e5f9b0e83fcfaf54004e91fa39f46e14ab129eb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:40:16.027600Z","signature_b64":"86R5moFZN5Ip37McA5cr6XRgbjevOhltZyzADQZsU9+9DyhKFL7Cj6ARGCG1d4UY16QXyQ4vsxsLsgCCp4F5CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5ae0fb1242357fe564545f2e5f9b0e83fcfaf54004e91fa39f46e14ab129eb8","last_reissued_at":"2026-05-18T03:40:16.027005Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:40:16.027005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.4369","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":"2026-05-18T03:40:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idA27z3BRlS2tqY6mnvmgPaaTHQbVAnRr1NH7PKgqaCsgsl2DKnboj1lcGDb8n65vrTrFY75XZ8wtx+cN+RoAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:45:19.266503Z"},"content_sha256":"516a827f887c8eba79c97016ca8ceecb89392a8f9aa9b661383191a910b2ff0d","schema_version":"1.0","event_id":"sha256:516a827f887c8eba79c97016ca8ceecb89392a8f9aa9b661383191a910b2ff0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:UWXA7MJEENL74VSFIXZOL6NQ5A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Redshifts, Sample Purity, and BCG Positions for the Galaxy Cluster Catalog from the first 720 Square Degrees of the South Pole Telescope Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. A. Stark, A. Clocchiatti, A. H. Gonzalez, A. Rest, A. Saro, A. T. Crites, A. T. Lee, A. van Engelen, A. Zenteno, B. A. Benson, B. R. Saliwanchik, B. Stalder, C. L. Chang, C. L. Reichardt, C. Pryke, C. W. Stubbs, D. Gettings, D. Luong-Van, D. Nurgaliev, D. P. Marrone, E. Bertin, E. M. George, E. M. Leitch, E. Shirokoff, F. W. High, G. Bazin, G. P. Holder, H. G. Spieler, H. M. Cho, J. D. Hrubes, J. D. Vieira, J. E. Carlstrom, J. E. Ruhl, J. J. McMahon, J. J. Mohr, J. Liu, J. Mehl, J. P. Dudley, J. Ruel, J. Song, J. T. Sayre, K. A. Aird, K. K. Schaffer, K. Story, K. Vanderlinde, L. E. Bleem, L. Knox, L. Mocanu, L. Shaw, M. A. Dobbs, M. Bayliss, M. Brodwin, M. D. Gladders, M. Joy, M. L. N. Ashby, M. Lueker, M. McDonald, N. L. Harrington, N. W. Halverson, O. Zahn, R. Armstrong, R. J. Foley, R. Keisler, R. Suhada, R. Williamson, S. A. Stanford, S. Desai, S. Hoover, S. Padin, S. S. Meyer, T. de Haan, T. E. Montroy, T. M. Crawford, T. Natoli, T. Plagge, W. L. Holzapfel, Z. Staniszewski","submitted_at":"2012-07-18T13:18:39Z","abstract_excerpt":"We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720 deg^2 of the South Pole Telescope (SPT) survey completed in the 2008 and 2009 observing seasons. We use the optical/NIR data to establish whether each candidate is associated with an overdensity of galaxies and to estimate the cluster redshift. Most photometric redshifts are derived through a combination of three different cluster redshift estimators using red-sequence galaxies, resulting in an accuracy of \\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4369","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":"2026-05-18T03:40:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XXh2ksbQL7MLjCEtNr01NgxEzY6A9Nu0o3lfrvjsAUPdIDskCivSa7KslTjy+LQ4lC7IZoQBw6CE3TFHgDkXAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:45:19.266899Z"},"content_sha256":"02aa0729507b5222d906210b2f27aba9215080d5b93e10b5f8092bab714c32f9","schema_version":"1.0","event_id":"sha256:02aa0729507b5222d906210b2f27aba9215080d5b93e10b5f8092bab714c32f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/bundle.json","state_url":"https://pith.science/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/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":"2026-05-26T20:45:19Z","links":{"resolver":"https://pith.science/pith/UWXA7MJEENL74VSFIXZOL6NQ5A","bundle":"https://pith.science/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/bundle.json","state":"https://pith.science/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWXA7MJEENL74VSFIXZOL6NQ5A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:UWXA7MJEENL74VSFIXZOL6NQ5A","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":"d0ebcfcab554318e993e536095dca34d8c36658a664132dffa64d0537df2d789","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-18T13:18:39Z","title_canon_sha256":"e3a2aa853359f3e1ab5fb33c975d6c383f92f8c930b938d4842bb779a6638f1a"},"schema_version":"1.0","source":{"id":"1207.4369","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.4369","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"arxiv_version","alias_value":"1207.4369v2","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4369","created_at":"2026-05-18T03:40:16Z"},{"alias_kind":"pith_short_12","alias_value":"UWXA7MJEENL7","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"UWXA7MJEENL74VSF","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"UWXA7MJE","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:02aa0729507b5222d906210b2f27aba9215080d5b93e10b5f8092bab714c32f9","target":"graph","created_at":"2026-05-18T03:40:16Z","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":"We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720 deg^2 of the South Pole Telescope (SPT) survey completed in the 2008 and 2009 observing seasons. We use the optical/NIR data to establish whether each candidate is associated with an overdensity of galaxies and to estimate the cluster redshift. Most photometric redshifts are derived through a combination of three different cluster redshift estimators using red-sequence galaxies, resulting in an accuracy of \\","authors_text":"A. A. Stark, A. Clocchiatti, A. H. Gonzalez, A. Rest, A. Saro, A. T. Crites, A. T. Lee, A. van Engelen, A. Zenteno, B. A. Benson, B. R. Saliwanchik, B. Stalder, C. L. Chang, C. L. Reichardt, C. Pryke, C. W. Stubbs, D. Gettings, D. Luong-Van, D. Nurgaliev, D. P. Marrone, E. Bertin, E. M. George, E. M. Leitch, E. Shirokoff, F. W. High, G. Bazin, G. P. Holder, H. G. Spieler, H. M. Cho, J. D. Hrubes, J. D. Vieira, J. E. Carlstrom, J. E. Ruhl, J. J. McMahon, J. J. Mohr, J. Liu, J. Mehl, J. P. Dudley, J. Ruel, J. Song, J. T. Sayre, K. A. Aird, K. K. Schaffer, K. Story, K. Vanderlinde, L. E. Bleem, L. Knox, L. Mocanu, L. Shaw, M. A. Dobbs, M. Bayliss, M. Brodwin, M. D. Gladders, M. Joy, M. L. N. Ashby, M. Lueker, M. McDonald, N. L. Harrington, N. W. Halverson, O. Zahn, R. Armstrong, R. J. Foley, R. Keisler, R. Suhada, R. Williamson, S. A. Stanford, S. Desai, S. Hoover, S. Padin, S. S. Meyer, T. de Haan, T. E. Montroy, T. M. Crawford, T. Natoli, T. Plagge, W. L. Holzapfel, Z. Staniszewski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-18T13:18:39Z","title":"Redshifts, Sample Purity, and BCG Positions for the Galaxy Cluster Catalog from the first 720 Square Degrees of the South Pole Telescope Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4369","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":"sha256:516a827f887c8eba79c97016ca8ceecb89392a8f9aa9b661383191a910b2ff0d","target":"record","created_at":"2026-05-18T03:40:16Z","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":"d0ebcfcab554318e993e536095dca34d8c36658a664132dffa64d0537df2d789","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-18T13:18:39Z","title_canon_sha256":"e3a2aa853359f3e1ab5fb33c975d6c383f92f8c930b938d4842bb779a6638f1a"},"schema_version":"1.0","source":{"id":"1207.4369","kind":"arxiv","version":2}},"canonical_sha256":"a5ae0fb1242357fe564545f2e5f9b0e83fcfaf54004e91fa39f46e14ab129eb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5ae0fb1242357fe564545f2e5f9b0e83fcfaf54004e91fa39f46e14ab129eb8","first_computed_at":"2026-05-18T03:40:16.027005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:40:16.027005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"86R5moFZN5Ip37McA5cr6XRgbjevOhltZyzADQZsU9+9DyhKFL7Cj6ARGCG1d4UY16QXyQ4vsxsLsgCCp4F5CA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:40:16.027600Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.4369","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:516a827f887c8eba79c97016ca8ceecb89392a8f9aa9b661383191a910b2ff0d","sha256:02aa0729507b5222d906210b2f27aba9215080d5b93e10b5f8092bab714c32f9"],"state_sha256":"367e36e8684466608d801b7a0e03d958777aaaf8f09973a692824e6f6873d8bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k3JZ0YE/4OzOsRDStCVyEtPaA1UcaNv88d8pUeAV2s0hBAtCmmPbQ1NnPwQzX1vGqsRlAtAIcmuqfxtxWYa3BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:45:19.269928Z","bundle_sha256":"a760ec467fb69d0838d6a6db20da13f040efe548318b4c8ee720e6904288497b"}}