{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:YXIACHAR3SC3BFDHILBD4CR3RQ","short_pith_number":"pith:YXIACHAR","canonical_record":{"source":{"id":"physics/0508163","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"physics.hist-ph","submitted_at":"2005-08-22T20:29:55Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"1484be60e63505615d0196c38da83b1fb23e45f305ac59c4914e8937caffe707","abstract_canon_sha256":"67b1712cc5060f234ec7fb4cb14ab0867b19d4208d026b76d0cb4386e3e662c2"},"schema_version":"1.0"},"canonical_sha256":"c5d0011c11dc85b0946742c23e0a3b8c27b9d3e3e8dacd0b7f6cde1af17e890b","source":{"kind":"arxiv","id":"physics/0508163","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0508163","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0508163v2","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0508163","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_12","alias_value":"YXIACHAR3SC3","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_16","alias_value":"YXIACHAR3SC3BFDH","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_8","alias_value":"YXIACHAR","created_at":"2026-07-04T14:48:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:YXIACHAR3SC3BFDHILBD4CR3RQ","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0508163","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"physics.hist-ph","submitted_at":"2005-08-22T20:29:55Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"1484be60e63505615d0196c38da83b1fb23e45f305ac59c4914e8937caffe707","abstract_canon_sha256":"67b1712cc5060f234ec7fb4cb14ab0867b19d4208d026b76d0cb4386e3e662c2"},"schema_version":"1.0"},"canonical_sha256":"c5d0011c11dc85b0946742c23e0a3b8c27b9d3e3e8dacd0b7f6cde1af17e890b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:48:42.025638Z","signature_b64":"qSJ687QidC2URwuvB83+q5ujVOur9TFjCa8cJa6UDkZyeipWzIf1qevLn7u6M49vprgOYxJPyWHVVc6hGFlnDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5d0011c11dc85b0946742c23e0a3b8c27b9d3e3e8dacd0b7f6cde1af17e890b","last_reissued_at":"2026-07-04T14:48:42.025234Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:48:42.025234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0508163","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":"2026-07-04T14:48:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2qyR3yKDMOvQtTrpJViAVLYAZyZ+h0ipFcYXLI3giOa/y1AM7eTP/4r74wHFvwv9LYfwyNwLLGmfvMvX8PMcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T01:31:27.244227Z"},"content_sha256":"aa86dbd6f547cd1cb98ab2e4673e973ac541a9dfdd4e29838d31d15a36ea6171","schema_version":"1.0","event_id":"sha256:aa86dbd6f547cd1cb98ab2e4673e973ac541a9dfdd4e29838d31d15a36ea6171"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:YXIACHAR3SC3BFDHILBD4CR3RQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the discovery of Birkhoff's theorem","license":"","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"physics.hist-ph","authors_text":"Finn Ravndal, Nils Voje Johansen","submitted_at":"2005-08-22T20:29:55Z","abstract_excerpt":"Birkhoff showed in 1923 that the Schwarzschild solution for the metric from a point particle was also valid in the a priori non-static case as long as the spherical symmetry was maintained. This theorem was actually discovered and published two years earlier by an unknown Norwegian physicist, J.T. Jebsen. His life and scientific career is briefly chronicled."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0508163","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0508163/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":"2026-07-04T14:48:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5sLWZMKGb91HB7oVCriDGqe5L6ekgkqF8a3lnCq+ZoPO15AY3FHvzd7z6YtiLDNlJykbDjfpuZKTyuVyMDiaCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T01:31:27.244718Z"},"content_sha256":"df8bf1d96dcf21d5d638877274d341c1d87b6903d7154989377a5fc3663036fb","schema_version":"1.0","event_id":"sha256:df8bf1d96dcf21d5d638877274d341c1d87b6903d7154989377a5fc3663036fb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/bundle.json","state_url":"https://pith.science/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/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":"2026-08-18T01:31:27Z","links":{"resolver":"https://pith.science/pith/YXIACHAR3SC3BFDHILBD4CR3RQ","bundle":"https://pith.science/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/bundle.json","state":"https://pith.science/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXIACHAR3SC3BFDHILBD4CR3RQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:YXIACHAR3SC3BFDHILBD4CR3RQ","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":"67b1712cc5060f234ec7fb4cb14ab0867b19d4208d026b76d0cb4386e3e662c2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"","primary_cat":"physics.hist-ph","submitted_at":"2005-08-22T20:29:55Z","title_canon_sha256":"1484be60e63505615d0196c38da83b1fb23e45f305ac59c4914e8937caffe707"},"schema_version":"1.0","source":{"id":"physics/0508163","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0508163","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0508163v2","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0508163","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_12","alias_value":"YXIACHAR3SC3","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_16","alias_value":"YXIACHAR3SC3BFDH","created_at":"2026-07-04T14:48:42Z"},{"alias_kind":"pith_short_8","alias_value":"YXIACHAR","created_at":"2026-07-04T14:48:42Z"}],"graph_snapshots":[{"event_id":"sha256:df8bf1d96dcf21d5d638877274d341c1d87b6903d7154989377a5fc3663036fb","target":"graph","created_at":"2026-07-04T14:48:42Z","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/physics/0508163/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Birkhoff showed in 1923 that the Schwarzschild solution for the metric from a point particle was also valid in the a priori non-static case as long as the spherical symmetry was maintained. This theorem was actually discovered and published two years earlier by an unknown Norwegian physicist, J.T. Jebsen. His life and scientific career is briefly chronicled.","authors_text":"Finn Ravndal, Nils Voje Johansen","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"","primary_cat":"physics.hist-ph","submitted_at":"2005-08-22T20:29:55Z","title":"On the discovery of Birkhoff's theorem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0508163","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:aa86dbd6f547cd1cb98ab2e4673e973ac541a9dfdd4e29838d31d15a36ea6171","target":"record","created_at":"2026-07-04T14:48:42Z","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":"67b1712cc5060f234ec7fb4cb14ab0867b19d4208d026b76d0cb4386e3e662c2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"","primary_cat":"physics.hist-ph","submitted_at":"2005-08-22T20:29:55Z","title_canon_sha256":"1484be60e63505615d0196c38da83b1fb23e45f305ac59c4914e8937caffe707"},"schema_version":"1.0","source":{"id":"physics/0508163","kind":"arxiv","version":2}},"canonical_sha256":"c5d0011c11dc85b0946742c23e0a3b8c27b9d3e3e8dacd0b7f6cde1af17e890b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5d0011c11dc85b0946742c23e0a3b8c27b9d3e3e8dacd0b7f6cde1af17e890b","first_computed_at":"2026-07-04T14:48:42.025234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:48:42.025234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qSJ687QidC2URwuvB83+q5ujVOur9TFjCa8cJa6UDkZyeipWzIf1qevLn7u6M49vprgOYxJPyWHVVc6hGFlnDA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:48:42.025638Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0508163","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa86dbd6f547cd1cb98ab2e4673e973ac541a9dfdd4e29838d31d15a36ea6171","sha256:df8bf1d96dcf21d5d638877274d341c1d87b6903d7154989377a5fc3663036fb"],"state_sha256":"205467c9f41879a2d8b23742fa3bafa3421b4ac0c44c6c5b82f075d6c88a5889"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ODpU11kcmYTDqbqwmEkUf5b/h0iVGjL8M831lLTQkb2Ol2lRPrtOrIttzQFmuWylCrvq3dDXFzihxRIA0qt/AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T01:31:27.250863Z","bundle_sha256":"ccf95dd611c69febfbe222ae3d48aa519eb7d2bdf1977c4bb57e7cdf304461fe"}}