{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:EIG2BOGWVLBJHG62ZNLRT6Y2DE","short_pith_number":"pith:EIG2BOGW","canonical_record":{"source":{"id":"1801.03027","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-09T16:25:17Z","cross_cats_sorted":[],"title_canon_sha256":"04d4577f8ab685e911628ada6170aeeac0a90f513ff3b97d20efe08f84f02851","abstract_canon_sha256":"4e9174346b144001b686c744f966f9928484458e4b7725ce4742c657e29b95e3"},"schema_version":"1.0"},"canonical_sha256":"220da0b8d6aac2939bdacb5719fb1a1930f3d8305a5398fb4c12f01520ac403a","source":{"kind":"arxiv","id":"1801.03027","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03027","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03027v3","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03027","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"EIG2BOGWVLBJ","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_16","alias_value":"EIG2BOGWVLBJHG62","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_8","alias_value":"EIG2BOGW","created_at":"2026-07-05T08:11:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:EIG2BOGWVLBJHG62ZNLRT6Y2DE","target":"record","payload":{"canonical_record":{"source":{"id":"1801.03027","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-09T16:25:17Z","cross_cats_sorted":[],"title_canon_sha256":"04d4577f8ab685e911628ada6170aeeac0a90f513ff3b97d20efe08f84f02851","abstract_canon_sha256":"4e9174346b144001b686c744f966f9928484458e4b7725ce4742c657e29b95e3"},"schema_version":"1.0"},"canonical_sha256":"220da0b8d6aac2939bdacb5719fb1a1930f3d8305a5398fb4c12f01520ac403a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:11:48.765232Z","signature_b64":"omh73AVa/tFMN2UzBBh+SZoU7fwn4DOMJ8bW8S4wk+T9Ukf9aia4EaRFEJ58ioRIA8hbHjbhbovKjjZK+ICDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"220da0b8d6aac2939bdacb5719fb1a1930f3d8305a5398fb4c12f01520ac403a","last_reissued_at":"2026-07-05T08:11:48.764695Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:11:48.764695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.03027","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cc62ey8EvG/Bx49hauxeNQsYALFgaC8DJxexESFn2rb2I8OxHwGMZDKEn8ilPuYhRcc9gAV77XOw2dxdhpWOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:31:46.948796Z"},"content_sha256":"4b579f1242a44685b894659ad4874577080ee16aa6260740de75e095915ce855","schema_version":"1.0","event_id":"sha256:4b579f1242a44685b894659ad4874577080ee16aa6260740de75e095915ce855"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:EIG2BOGWVLBJHG62ZNLRT6Y2DE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characteristic Time Scales for the Geometry Transition of a Black Hole to a White Hole from Spinfoams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Fabio D'Ambrosio, Marios Christodoulou","submitted_at":"2018-01-09T16:25:17Z","abstract_excerpt":"Quantum fluctuations of the metric provide a decay mechanism for black holes, through a transition to a white hole geometry. Old perplexing results by Ambrus and H\\'aj\\'i\\v{c}ek and more recent results by Barcel\\'o, Carballo-Rubio and Garay, indicate a characteristic time scale of this process that scales linearly with the mass of the collapsed object. We compute the characteristic time scales involved in the quantum process using Lorentzian Loop Quantum Gravity amplitudes, corroborating these results but reinterpreting and clarifying their physical meaning. We first review and streamline the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03027","kind":"arxiv","version":3},"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/1801.03027/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":"2026-07-05T08:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zgItA20FKBHhKxVuDiWAJ2DQ8sL+rdn1MuHUUp48e6SHVXy7aOEmQ6CjKrthgVPgdMDyNOalVDXPrMDGp/miDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:31:46.949305Z"},"content_sha256":"9754fe72116ac0d6f8c2919ad0922f3bb41f54d3af1ccc20eacd245d265c455c","schema_version":"1.0","event_id":"sha256:9754fe72116ac0d6f8c2919ad0922f3bb41f54d3af1ccc20eacd245d265c455c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/bundle.json","state_url":"https://pith.science/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/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":"2026-08-06T04:31:46Z","links":{"resolver":"https://pith.science/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE","bundle":"https://pith.science/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/bundle.json","state":"https://pith.science/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EIG2BOGWVLBJHG62ZNLRT6Y2DE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EIG2BOGWVLBJHG62ZNLRT6Y2DE","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":"4e9174346b144001b686c744f966f9928484458e4b7725ce4742c657e29b95e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-09T16:25:17Z","title_canon_sha256":"04d4577f8ab685e911628ada6170aeeac0a90f513ff3b97d20efe08f84f02851"},"schema_version":"1.0","source":{"id":"1801.03027","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03027","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03027v3","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03027","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"EIG2BOGWVLBJ","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_16","alias_value":"EIG2BOGWVLBJHG62","created_at":"2026-07-05T08:11:48Z"},{"alias_kind":"pith_short_8","alias_value":"EIG2BOGW","created_at":"2026-07-05T08:11:48Z"}],"graph_snapshots":[{"event_id":"sha256:9754fe72116ac0d6f8c2919ad0922f3bb41f54d3af1ccc20eacd245d265c455c","target":"graph","created_at":"2026-07-05T08:11:48Z","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/1801.03027/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum fluctuations of the metric provide a decay mechanism for black holes, through a transition to a white hole geometry. Old perplexing results by Ambrus and H\\'aj\\'i\\v{c}ek and more recent results by Barcel\\'o, Carballo-Rubio and Garay, indicate a characteristic time scale of this process that scales linearly with the mass of the collapsed object. We compute the characteristic time scales involved in the quantum process using Lorentzian Loop Quantum Gravity amplitudes, corroborating these results but reinterpreting and clarifying their physical meaning. We first review and streamline the ","authors_text":"Fabio D'Ambrosio, Marios Christodoulou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-09T16:25:17Z","title":"Characteristic Time Scales for the Geometry Transition of a Black Hole to a White Hole from Spinfoams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03027","kind":"arxiv","version":3},"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":"sha256:4b579f1242a44685b894659ad4874577080ee16aa6260740de75e095915ce855","target":"record","created_at":"2026-07-05T08:11:48Z","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":"4e9174346b144001b686c744f966f9928484458e4b7725ce4742c657e29b95e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-09T16:25:17Z","title_canon_sha256":"04d4577f8ab685e911628ada6170aeeac0a90f513ff3b97d20efe08f84f02851"},"schema_version":"1.0","source":{"id":"1801.03027","kind":"arxiv","version":3}},"canonical_sha256":"220da0b8d6aac2939bdacb5719fb1a1930f3d8305a5398fb4c12f01520ac403a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"220da0b8d6aac2939bdacb5719fb1a1930f3d8305a5398fb4c12f01520ac403a","first_computed_at":"2026-07-05T08:11:48.764695Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:11:48.764695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"omh73AVa/tFMN2UzBBh+SZoU7fwn4DOMJ8bW8S4wk+T9Ukf9aia4EaRFEJ58ioRIA8hbHjbhbovKjjZK+ICDDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:11:48.765232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.03027","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b579f1242a44685b894659ad4874577080ee16aa6260740de75e095915ce855","sha256:9754fe72116ac0d6f8c2919ad0922f3bb41f54d3af1ccc20eacd245d265c455c"],"state_sha256":"cc6bf2b284e27c1a058dfbfb8dc991e23bab9c5702da0a7635275ca00e126f14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LZcyv3UoDVLHQQmgG+HR90+YduVC8ANe33AXiBKOQrUd6sF0YXIB8LGipa5H91bX+IsDfdoB/gCY+vUn08XvCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T04:31:46.954374Z","bundle_sha256":"201474a83a6f72f23d4dc04c458bb2a63679396287afc762ebc7252c91dddfac"}}