{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:O7LQPZF6SN4FTGP64PQEF6LWYC","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":"dcc5a3aabefa5039ff467137cef5601b3307fdb790640be90408dec9dc1faa63","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-04-26T09:44:35Z","title_canon_sha256":"4b21c670e10bd75608d5ceac7299bd8f2b5680e4338c5a22594690bb798f2bc5"},"schema_version":"1.0","source":{"id":"1304.7104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.7104","created_at":"2026-05-18T03:14:52Z"},{"alias_kind":"arxiv_version","alias_value":"1304.7104v1","created_at":"2026-05-18T03:14:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.7104","created_at":"2026-05-18T03:14:52Z"},{"alias_kind":"pith_short_12","alias_value":"O7LQPZF6SN4F","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"O7LQPZF6SN4FTGP6","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"O7LQPZF6","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:8d798e479d550ba574a59cf5a564631b043d2cb2fef19e24c7c734c27d633d55","target":"graph","created_at":"2026-05-18T03:14:52Z","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":"We investigate the global structure of a recently discovered simple exact, non-stationary solution of topologically massive and new massive gravity with the asymptotic charges of an undeformed BTZ black hole. We establish the existence of a timelike singularity in the causal structure of the spacetime even in the absence of angular momentum. The dynamical trapping and event horizons are determined and we investigate the evolution of the outer horizon showing that it may increase or decrease with time, depending on the value of the mass parameter. Finally, we test two proposals for dynamical en","authors_text":"Ivo Sachs, Mario Flory","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-04-26T09:44:35Z","title":"Dynamical Black Holes in 2+1 Dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7104","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":"sha256:85668ba4fd190593db153a88c5a33531eddbba4693b9be8c23b6499307c00190","target":"record","created_at":"2026-05-18T03:14:52Z","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":"dcc5a3aabefa5039ff467137cef5601b3307fdb790640be90408dec9dc1faa63","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-04-26T09:44:35Z","title_canon_sha256":"4b21c670e10bd75608d5ceac7299bd8f2b5680e4338c5a22594690bb798f2bc5"},"schema_version":"1.0","source":{"id":"1304.7104","kind":"arxiv","version":1}},"canonical_sha256":"77d707e4be93785999fee3e042f976c084d05704a928d416862acc630ecc76a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77d707e4be93785999fee3e042f976c084d05704a928d416862acc630ecc76a6","first_computed_at":"2026-05-18T03:14:52.450496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:14:52.450496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"agwa62JQ+MQDToBO7b4c+FwozCMb+QV5B/Qs2bg/AwleELrjEPRKynDNCzoUM8XJd96YbMAqrGNL0mkDRuoABg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:14:52.451563Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.7104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85668ba4fd190593db153a88c5a33531eddbba4693b9be8c23b6499307c00190","sha256:8d798e479d550ba574a59cf5a564631b043d2cb2fef19e24c7c734c27d633d55"],"state_sha256":"506c2056669725e961a0d9c2fcb5221c9f642aabac54f85e81fd1c4f0e689b7f"}