{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:DDSPS35E34RW2FBSQ2DSOFJWL5","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":"bc4f6e8ecf374bc3842a8fa158a016c3d102e112356b19f8197d8f4285ffc507","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1996-12-20T01:54:36Z","title_canon_sha256":"96a7344e70157e49de9d692272411110febab8d0db333ab022df4de776c446bb"},"schema_version":"1.0","source":{"id":"gr-qc/9612057","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9612057","created_at":"2026-07-04T16:01:20Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9612057v1","created_at":"2026-07-04T16:01:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9612057","created_at":"2026-07-04T16:01:20Z"},{"alias_kind":"pith_short_12","alias_value":"DDSPS35E34RW","created_at":"2026-07-04T16:01:20Z"},{"alias_kind":"pith_short_16","alias_value":"DDSPS35E34RW2FBS","created_at":"2026-07-04T16:01:20Z"},{"alias_kind":"pith_short_8","alias_value":"DDSPS35E","created_at":"2026-07-04T16:01:20Z"}],"graph_snapshots":[{"event_id":"sha256:8b36bd10ba6d47aadc3768951ff2ed2ed011146c8ba9fb2b0330ae1d77c83f21","target":"graph","created_at":"2026-07-04T16:01:20Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/gr-qc/9612057/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The conditions are clarified under which regular (i.e., singularity-free) black holes can exist. It is shown that in a large class of spacetimes that satisfy the weak energy condition the existence of a regular black hole requires topology change.","authors_text":"Arvind Borde","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1996-12-20T01:54:36Z","title":"Regular Black Holes and Topology Change"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9612057","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:cc533f16121e0e5509c71b020047c72d5dcef7c8c91e5133bc1b14a9ea227a60","target":"record","created_at":"2026-07-04T16:01:20Z","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":"bc4f6e8ecf374bc3842a8fa158a016c3d102e112356b19f8197d8f4285ffc507","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1996-12-20T01:54:36Z","title_canon_sha256":"96a7344e70157e49de9d692272411110febab8d0db333ab022df4de776c446bb"},"schema_version":"1.0","source":{"id":"gr-qc/9612057","kind":"arxiv","version":1}},"canonical_sha256":"18e4f96fa4df236d143286872715365f6fc3a1d192fb5937bd2a720dc1f7e9eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18e4f96fa4df236d143286872715365f6fc3a1d192fb5937bd2a720dc1f7e9eb","first_computed_at":"2026-07-04T16:01:20.000469Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:01:20.000469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SbBUPXv3uu9En6LfMc4pinhmwZs5uTRjAg+teX78ufH3vmVrT6YmRdVdbN/zkPVh4VXkYEZqkxqgZaaUendGBA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:01:20.000842Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9612057","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc533f16121e0e5509c71b020047c72d5dcef7c8c91e5133bc1b14a9ea227a60","sha256:8b36bd10ba6d47aadc3768951ff2ed2ed011146c8ba9fb2b0330ae1d77c83f21"],"state_sha256":"bdc84a0e3e65b1489fb030228c66995267b90ef7f0bc47a27dcd9ac25eb02005"}