{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:4YLKNUHRS7LRZY2PJS64OLLYFO","short_pith_number":"pith:4YLKNUHR","canonical_record":{"source":{"id":"2312.16249","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-25T14:48:20Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"3adc5df7d940badf8087c59842205d50c0ca2bda76de662d02c2e1c1800ea2e4","abstract_canon_sha256":"946670fc7599530fa3b179ecceba4975bd4915a1454238103e29a86eed19503f"},"schema_version":"1.0"},"canonical_sha256":"e616a6d0f197d71ce34f4cbdc72d782bb8154de750072d7592e528b8f57b654f","source":{"kind":"arxiv","id":"2312.16249","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.16249","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"arxiv_version","alias_value":"2312.16249v1","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.16249","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_12","alias_value":"4YLKNUHRS7LR","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4YLKNUHRS7LRZY2P","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4YLKNUHR","created_at":"2026-07-05T07:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:4YLKNUHRS7LRZY2PJS64OLLYFO","target":"record","payload":{"canonical_record":{"source":{"id":"2312.16249","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-25T14:48:20Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"3adc5df7d940badf8087c59842205d50c0ca2bda76de662d02c2e1c1800ea2e4","abstract_canon_sha256":"946670fc7599530fa3b179ecceba4975bd4915a1454238103e29a86eed19503f"},"schema_version":"1.0"},"canonical_sha256":"e616a6d0f197d71ce34f4cbdc72d782bb8154de750072d7592e528b8f57b654f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:28:14.997876Z","signature_b64":"D9rLWtj/nznH7rohVipRQXW3qKs+YKeVj5mDRM+rhPLHqsc08MzyqplyIdNJOQksEGkxtOQPjU7TA5nLsMhBCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e616a6d0f197d71ce34f4cbdc72d782bb8154de750072d7592e528b8f57b654f","last_reissued_at":"2026-07-05T07:28:14.997533Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:28:14.997533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.16249","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":"2026-07-05T07:28:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UzAdvhkMO+yKtECgQC9GZLSYiyb01R9EWXjCiw0KOwHBjOa3SZNu3w3MlYYuVyC0XT0Bk44aoj5l6usKN9k1DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:25:41.306384Z"},"content_sha256":"5803500775608530a5681111c087ab0448857b4e6501f58248425d801181d729","schema_version":"1.0","event_id":"sha256:5803500775608530a5681111c087ab0448857b4e6501f58248425d801181d729"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:4YLKNUHRS7LRZY2PJS64OLLYFO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The sound of the event horizon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"R. A. Konoplya","submitted_at":"2023-12-25T14:48:20Z","abstract_excerpt":"During the ringdown phase of a gravitational signal emitted by a black hole, the least damped quasinormal frequency dominates. If modifications to Einstein's theory induce noticeable deformations of the black-hole geometry only near the event horizon, the fundamental mode remains largely unaffected. However, even a small change near the event horizon can significantly impact the first few overtones, providing a means to probe the geometry of the event horizon. Overtones are stable against small deformations of spacetime at a distance from the black hole, allowing the event horizon to be distin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.16249","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/2312.16249/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":"2026-07-05T07:28:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mVzz4CeVsYBdiUXmr6QmlsGNoOYYpZBDZxnd4mE2WD+cxonDY5k7jZTz+ebVonuHMgWLSfsKlhveMvi6FwB6CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:25:41.314268Z"},"content_sha256":"31b47ac8e0dbf0b965fb6b88ac5718204e2415df31028d35416aab95f8a1a000","schema_version":"1.0","event_id":"sha256:31b47ac8e0dbf0b965fb6b88ac5718204e2415df31028d35416aab95f8a1a000"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/bundle.json","state_url":"https://pith.science/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/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":"2026-08-11T21:25:41Z","links":{"resolver":"https://pith.science/pith/4YLKNUHRS7LRZY2PJS64OLLYFO","bundle":"https://pith.science/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/bundle.json","state":"https://pith.science/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4YLKNUHRS7LRZY2PJS64OLLYFO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:4YLKNUHRS7LRZY2PJS64OLLYFO","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":"946670fc7599530fa3b179ecceba4975bd4915a1454238103e29a86eed19503f","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-25T14:48:20Z","title_canon_sha256":"3adc5df7d940badf8087c59842205d50c0ca2bda76de662d02c2e1c1800ea2e4"},"schema_version":"1.0","source":{"id":"2312.16249","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.16249","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"arxiv_version","alias_value":"2312.16249v1","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.16249","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_12","alias_value":"4YLKNUHRS7LR","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4YLKNUHRS7LRZY2P","created_at":"2026-07-05T07:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4YLKNUHR","created_at":"2026-07-05T07:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:31b47ac8e0dbf0b965fb6b88ac5718204e2415df31028d35416aab95f8a1a000","target":"graph","created_at":"2026-07-05T07:28:14Z","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/2312.16249/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"During the ringdown phase of a gravitational signal emitted by a black hole, the least damped quasinormal frequency dominates. If modifications to Einstein's theory induce noticeable deformations of the black-hole geometry only near the event horizon, the fundamental mode remains largely unaffected. However, even a small change near the event horizon can significantly impact the first few overtones, providing a means to probe the geometry of the event horizon. Overtones are stable against small deformations of spacetime at a distance from the black hole, allowing the event horizon to be distin","authors_text":"R. A. Konoplya","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-25T14:48:20Z","title":"The sound of the event horizon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.16249","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":"sha256:5803500775608530a5681111c087ab0448857b4e6501f58248425d801181d729","target":"record","created_at":"2026-07-05T07:28:14Z","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":"946670fc7599530fa3b179ecceba4975bd4915a1454238103e29a86eed19503f","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-25T14:48:20Z","title_canon_sha256":"3adc5df7d940badf8087c59842205d50c0ca2bda76de662d02c2e1c1800ea2e4"},"schema_version":"1.0","source":{"id":"2312.16249","kind":"arxiv","version":1}},"canonical_sha256":"e616a6d0f197d71ce34f4cbdc72d782bb8154de750072d7592e528b8f57b654f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e616a6d0f197d71ce34f4cbdc72d782bb8154de750072d7592e528b8f57b654f","first_computed_at":"2026-07-05T07:28:14.997533Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:28:14.997533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D9rLWtj/nznH7rohVipRQXW3qKs+YKeVj5mDRM+rhPLHqsc08MzyqplyIdNJOQksEGkxtOQPjU7TA5nLsMhBCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:28:14.997876Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.16249","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5803500775608530a5681111c087ab0448857b4e6501f58248425d801181d729","sha256:31b47ac8e0dbf0b965fb6b88ac5718204e2415df31028d35416aab95f8a1a000"],"state_sha256":"cefc6670301d013ab500b1c1701f157fde2a221c7178b652c7cb023a45c8ada0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vwNn2w714bt1nh/fnWiYTqjYCleLgbgvZiomu9I5cmUGvex/VATa8nj4V5BUQ00hFrj+w3UsVm9lmk9i7IDxCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T21:25:41.328605Z","bundle_sha256":"11bdfffda7ffd50606bdf5f18119127212b1dd8dc1d40b00ba839cc7b6cb7d85"}}