{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QOP5D3ZEPDLGYCSDKGJGELEM73","short_pith_number":"pith:QOP5D3ZE","canonical_record":{"source":{"id":"1109.1268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2011-09-06T19:02:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"043811bb79f552cdfdad35e1ca417f431655ec861d026bf3fb5ed9f1595c9f7a","abstract_canon_sha256":"2b6e3c51cc8a3ea4a350b459be6a0301196c871d3627548aa6a57d6bfc048258"},"schema_version":"1.0"},"canonical_sha256":"839fd1ef2478d66c0a435192622c8cfec47331f57e4f345e4d29c7556e6d936d","source":{"kind":"arxiv","id":"1109.1268","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1268","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1268v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1268","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"QOP5D3ZEPDLG","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QOP5D3ZEPDLGYCSD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QOP5D3ZE","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QOP5D3ZEPDLGYCSDKGJGELEM73","target":"record","payload":{"canonical_record":{"source":{"id":"1109.1268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2011-09-06T19:02:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"043811bb79f552cdfdad35e1ca417f431655ec861d026bf3fb5ed9f1595c9f7a","abstract_canon_sha256":"2b6e3c51cc8a3ea4a350b459be6a0301196c871d3627548aa6a57d6bfc048258"},"schema_version":"1.0"},"canonical_sha256":"839fd1ef2478d66c0a435192622c8cfec47331f57e4f345e4d29c7556e6d936d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:05.039044Z","signature_b64":"d7RaJLerN+uo1s19nuONoIHL4WLcO8Sea+X70MH3CwK2VfPHnYB1iO3LF7fF/pQdUbOPVh/gm9QUHx56zMjGDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"839fd1ef2478d66c0a435192622c8cfec47331f57e4f345e4d29c7556e6d936d","last_reissued_at":"2026-05-18T04:14:05.038453Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:05.038453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.1268","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":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BonUQMOLVQXsKpRgY01raTpeDIIL+KmyAD+vyCexbtyiIdL6pvWzeXCTF1+pn+Fhydhq96NUF8amMD43Kki/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:08:24.220778Z"},"content_sha256":"14b4b242320ef240ed37c5a07858ee988164aec4e182b71ebdc6b399d34ae0c8","schema_version":"1.0","event_id":"sha256:14b4b242320ef240ed37c5a07858ee988164aec4e182b71ebdc6b399d34ae0c8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QOP5D3ZEPDLGYCSDKGJGELEM73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Historical View: The Discovery of Voids in the Galaxy Distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"physics.hist-ph","authors_text":"Laird A. Thompson, Stephen A. Gregory","submitted_at":"2011-09-06T19:02:37Z","abstract_excerpt":"Voids in the large scale distribution of galaxies were first recognized and discussed as an astrophysical phenomenon in two papers published in 1978. We published the first (Gregory and Thompson 1978) and Joeveer, Einasto and Tago (1978) published the second. The discovery of voids altered the accepted view of the large scale structure of the universe. In the old picture, the universe was filled with field galaxies, and occasional density enhancements could be found at the locations of rich galaxy clusters or superclusters. In the new picture, voids are interspersed between complex filamentary"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1268","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":"2026-05-18T04:14:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i3BRA/NnzQO8IakR70zwRv9jcI3LUEik7T/CpULdmOWkSeLLM/GPym5kcFuyn+UT56qQ/I9qYgfY2fjM/JJwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:08:24.221260Z"},"content_sha256":"4857657c3baadf748d876de25d18bc8045e07fdbe9ad1079ee61b359fd23b380","schema_version":"1.0","event_id":"sha256:4857657c3baadf748d876de25d18bc8045e07fdbe9ad1079ee61b359fd23b380"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/bundle.json","state_url":"https://pith.science/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/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":"2026-08-07T22:08:24Z","links":{"resolver":"https://pith.science/pith/QOP5D3ZEPDLGYCSDKGJGELEM73","bundle":"https://pith.science/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/bundle.json","state":"https://pith.science/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QOP5D3ZEPDLGYCSDKGJGELEM73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QOP5D3ZEPDLGYCSDKGJGELEM73","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":"2b6e3c51cc8a3ea4a350b459be6a0301196c871d3627548aa6a57d6bfc048258","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2011-09-06T19:02:37Z","title_canon_sha256":"043811bb79f552cdfdad35e1ca417f431655ec861d026bf3fb5ed9f1595c9f7a"},"schema_version":"1.0","source":{"id":"1109.1268","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1268","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1268v1","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1268","created_at":"2026-05-18T04:14:05Z"},{"alias_kind":"pith_short_12","alias_value":"QOP5D3ZEPDLG","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QOP5D3ZEPDLGYCSD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QOP5D3ZE","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:4857657c3baadf748d876de25d18bc8045e07fdbe9ad1079ee61b359fd23b380","target":"graph","created_at":"2026-05-18T04:14:05Z","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":"Voids in the large scale distribution of galaxies were first recognized and discussed as an astrophysical phenomenon in two papers published in 1978. We published the first (Gregory and Thompson 1978) and Joeveer, Einasto and Tago (1978) published the second. The discovery of voids altered the accepted view of the large scale structure of the universe. In the old picture, the universe was filled with field galaxies, and occasional density enhancements could be found at the locations of rich galaxy clusters or superclusters. In the new picture, voids are interspersed between complex filamentary","authors_text":"Laird A. Thompson, Stephen A. Gregory","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2011-09-06T19:02:37Z","title":"An Historical View: The Discovery of Voids in the Galaxy Distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1268","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":"sha256:14b4b242320ef240ed37c5a07858ee988164aec4e182b71ebdc6b399d34ae0c8","target":"record","created_at":"2026-05-18T04:14:05Z","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":"2b6e3c51cc8a3ea4a350b459be6a0301196c871d3627548aa6a57d6bfc048258","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2011-09-06T19:02:37Z","title_canon_sha256":"043811bb79f552cdfdad35e1ca417f431655ec861d026bf3fb5ed9f1595c9f7a"},"schema_version":"1.0","source":{"id":"1109.1268","kind":"arxiv","version":1}},"canonical_sha256":"839fd1ef2478d66c0a435192622c8cfec47331f57e4f345e4d29c7556e6d936d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"839fd1ef2478d66c0a435192622c8cfec47331f57e4f345e4d29c7556e6d936d","first_computed_at":"2026-05-18T04:14:05.038453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:14:05.038453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d7RaJLerN+uo1s19nuONoIHL4WLcO8Sea+X70MH3CwK2VfPHnYB1iO3LF7fF/pQdUbOPVh/gm9QUHx56zMjGDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:14:05.039044Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1268","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14b4b242320ef240ed37c5a07858ee988164aec4e182b71ebdc6b399d34ae0c8","sha256:4857657c3baadf748d876de25d18bc8045e07fdbe9ad1079ee61b359fd23b380"],"state_sha256":"f47d7cc75858f65f51daf27f5fb3186205ee8889ecac2c2203b01bda50e546b0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IKNz9H5n8Yf2YX+S/5gzv4Qx2HaiLaFEW+Z4XDcl8gYT59sfBCG4D+eJ8QsVZJg0Ojy/3vo7InrQaw9CTu9sCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:08:24.225085Z","bundle_sha256":"5e22da032c489fbf2a89cf1aff7d3431ac14b96497662b1a9553899ba43bba6f"}}