{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:P3RF2FYRREWPVGJLT6Q4ZDYTKY","short_pith_number":"pith:P3RF2FYR","canonical_record":{"source":{"id":"astro-ph/9708241","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-26T18:59:05Z","cross_cats_sorted":[],"title_canon_sha256":"3dc66ae86c1fc1c8624a6e23b04c013c10c1becd6e835074a4dcc32ae739db24","abstract_canon_sha256":"498f26e677c4e0f0a206522daccc7760f2a1adfbb047ea9a757f5b6449703e1e"},"schema_version":"1.0"},"canonical_sha256":"7ee25d1711892cfa992b9fa1cc8f135602fc59e675f20b3379c946dddea8393f","source":{"kind":"arxiv","id":"astro-ph/9708241","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9708241","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9708241v1","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9708241","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_12","alias_value":"P3RF2FYRREWP","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_16","alias_value":"P3RF2FYRREWPVGJL","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_8","alias_value":"P3RF2FYR","created_at":"2026-07-04T16:03:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:P3RF2FYRREWPVGJLT6Q4ZDYTKY","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9708241","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-26T18:59:05Z","cross_cats_sorted":[],"title_canon_sha256":"3dc66ae86c1fc1c8624a6e23b04c013c10c1becd6e835074a4dcc32ae739db24","abstract_canon_sha256":"498f26e677c4e0f0a206522daccc7760f2a1adfbb047ea9a757f5b6449703e1e"},"schema_version":"1.0"},"canonical_sha256":"7ee25d1711892cfa992b9fa1cc8f135602fc59e675f20b3379c946dddea8393f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:03:12.682607Z","signature_b64":"1CtEZfXUtQoktwJoE7Gw+68AAyOMuUFVHX1GOuUz21Z5Y7cE3vRi4cMV4mI+eHLo987CVoa0INP3yln/NcweCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ee25d1711892cfa992b9fa1cc8f135602fc59e675f20b3379c946dddea8393f","last_reissued_at":"2026-07-04T16:03:12.682264Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:03:12.682264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9708241","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":"2026-07-04T16:03:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sdeKbf1OacHBVomxkfC34M3wSLjdVtlShDsuhSE+7HiA3SGcKR/olGsnRc3JUYBoPMSD0NnxCVtPLxLkK4paDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:45:55.979687Z"},"content_sha256":"ca80428e47d8781f8bacd5f0d009227a303c487ab87d39c2392d7c695af98d4a","schema_version":"1.0","event_id":"sha256:ca80428e47d8781f8bacd5f0d009227a303c487ab87d39c2392d7c695af98d4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:P3RF2FYRREWPVGJLT6Q4ZDYTKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Study of Quasar Clustering at z>2.7 from the Palomar Transit Grism Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew W. Stephens, David H. Weinberg, Donald P. Schneider, James E. Gunn, Maarten Schmidt","submitted_at":"1997-08-26T18:59:05Z","abstract_excerpt":"The quest for structure indicators at earlier and earlier times in the evolution of the universe has led to the search for objects with ever higher redshifts. The Palomar Transit Grism Survey has produced a large sample of high redshift quasars ($z>2.7$), allowing statistical analysis of correlation between quasar positions. In this study, clustering is identified through comparison with $100 000$ Monte Carlo generated, randomly populated volumes, which are identical to the observed region in spatial coordinates, redshift distribution, and number of quasars. Three pairs have been observed with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9708241","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9708241/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:03:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dQ9nNV4m0CP6jJhWpmL6vopUGiQobGQK8oQFFqwaU5JYZgzQs4oZsW8dNdC9lYaLFK/z7oPvyOEwbxzb4r5CDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:45:55.980654Z"},"content_sha256":"aa572dd49c066756fb20e69fabf94fe255851fa65d07ab3ac33e0c94239359df","schema_version":"1.0","event_id":"sha256:aa572dd49c066756fb20e69fabf94fe255851fa65d07ab3ac33e0c94239359df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/bundle.json","state_url":"https://pith.science/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/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":"2026-08-02T13:45:55Z","links":{"resolver":"https://pith.science/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY","bundle":"https://pith.science/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/bundle.json","state":"https://pith.science/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P3RF2FYRREWPVGJLT6Q4ZDYTKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:P3RF2FYRREWPVGJLT6Q4ZDYTKY","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":"498f26e677c4e0f0a206522daccc7760f2a1adfbb047ea9a757f5b6449703e1e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-26T18:59:05Z","title_canon_sha256":"3dc66ae86c1fc1c8624a6e23b04c013c10c1becd6e835074a4dcc32ae739db24"},"schema_version":"1.0","source":{"id":"astro-ph/9708241","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9708241","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9708241v1","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9708241","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_12","alias_value":"P3RF2FYRREWP","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_16","alias_value":"P3RF2FYRREWPVGJL","created_at":"2026-07-04T16:03:12Z"},{"alias_kind":"pith_short_8","alias_value":"P3RF2FYR","created_at":"2026-07-04T16:03:12Z"}],"graph_snapshots":[{"event_id":"sha256:aa572dd49c066756fb20e69fabf94fe255851fa65d07ab3ac33e0c94239359df","target":"graph","created_at":"2026-07-04T16:03:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9708241/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The quest for structure indicators at earlier and earlier times in the evolution of the universe has led to the search for objects with ever higher redshifts. The Palomar Transit Grism Survey has produced a large sample of high redshift quasars ($z>2.7$), allowing statistical analysis of correlation between quasar positions. In this study, clustering is identified through comparison with $100 000$ Monte Carlo generated, randomly populated volumes, which are identical to the observed region in spatial coordinates, redshift distribution, and number of quasars. Three pairs have been observed with","authors_text":"Andrew W. Stephens, David H. Weinberg, Donald P. Schneider, James E. Gunn, Maarten Schmidt","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-08-26T18:59:05Z","title":"A Study of Quasar Clustering at z>2.7 from the Palomar Transit Grism Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9708241","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:ca80428e47d8781f8bacd5f0d009227a303c487ab87d39c2392d7c695af98d4a","target":"record","created_at":"2026-07-04T16:03:12Z","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":"498f26e677c4e0f0a206522daccc7760f2a1adfbb047ea9a757f5b6449703e1e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-26T18:59:05Z","title_canon_sha256":"3dc66ae86c1fc1c8624a6e23b04c013c10c1becd6e835074a4dcc32ae739db24"},"schema_version":"1.0","source":{"id":"astro-ph/9708241","kind":"arxiv","version":1}},"canonical_sha256":"7ee25d1711892cfa992b9fa1cc8f135602fc59e675f20b3379c946dddea8393f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ee25d1711892cfa992b9fa1cc8f135602fc59e675f20b3379c946dddea8393f","first_computed_at":"2026-07-04T16:03:12.682264Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:03:12.682264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1CtEZfXUtQoktwJoE7Gw+68AAyOMuUFVHX1GOuUz21Z5Y7cE3vRi4cMV4mI+eHLo987CVoa0INP3yln/NcweCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:03:12.682607Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9708241","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca80428e47d8781f8bacd5f0d009227a303c487ab87d39c2392d7c695af98d4a","sha256:aa572dd49c066756fb20e69fabf94fe255851fa65d07ab3ac33e0c94239359df"],"state_sha256":"f814d2c7cb7f06804dfdd21a52c1320fff7a08d577205193222eb632afaa7d1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NU1dKMZUM81P/Bf1deyHckrgtt2RBjW2S3bH+jAIMboZuWSHVzpACqP5z/TJlUDTvqgdMnWdL/yQewhYHdCpCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T13:45:55.984575Z","bundle_sha256":"2ad1f473f8e91f8f0b2b9ac5dcf7ae747d62e4e0258a4c0e6fd299d37a40ddea"}}