{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:PRKUWZJZ3DBI536THMQPWJ6DGT","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":"cf580679bb34be4a1558105d1f9297532ae71c13283b17e9f78ff529c92bb172","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-24T14:15:12Z","title_canon_sha256":"cd3ceb1f70bfa8c8537d48dc19245dec19b90c658659fccc1769f5be5d027297"},"schema_version":"1.0","source":{"id":"1612.08184","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.08184","created_at":"2026-05-18T00:10:30Z"},{"alias_kind":"arxiv_version","alias_value":"1612.08184v2","created_at":"2026-05-18T00:10:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.08184","created_at":"2026-05-18T00:10:30Z"},{"alias_kind":"pith_short_12","alias_value":"PRKUWZJZ3DBI","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"PRKUWZJZ3DBI536T","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"PRKUWZJZ","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:ccf072112d150731ac09b43e5664b1a09c852ea72ca5dbaf717ca8f7b8588ea1","target":"graph","created_at":"2026-05-18T00:10:30Z","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":"Scalar fields coupled to the Gauss-Bonnet invariant evade the known no-hair theorems and have nontrivial configurations around black holes. We focus on a scalar field that couples linearly to the Gauss-Bonnet invariant and hence exhibits shift symmetry. We study its dynamical evolution and the formation of scalar hair in a Schwarzschild background. We show that the evolution eventually settles to the known static hairy solutions in the appropriate limit.","authors_text":"Helvi Witek, Robert Benkel, Thomas P. Sotiriou","cross_cats":["astro-ph.HE","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-24T14:15:12Z","title":"Dynamical scalar hair formation around a Schwarzschild black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.08184","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":"sha256:92c4c5727b99d0edfced1c80ece6ce22db7b9768aa7b03867aa8237a56e5fd9b","target":"record","created_at":"2026-05-18T00:10:30Z","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":"cf580679bb34be4a1558105d1f9297532ae71c13283b17e9f78ff529c92bb172","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-24T14:15:12Z","title_canon_sha256":"cd3ceb1f70bfa8c8537d48dc19245dec19b90c658659fccc1769f5be5d027297"},"schema_version":"1.0","source":{"id":"1612.08184","kind":"arxiv","version":2}},"canonical_sha256":"7c554b6539d8c28eefd33b20fb27c334cd4bd10d9d8cb7bef3d4ecd3f70a4970","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c554b6539d8c28eefd33b20fb27c334cd4bd10d9d8cb7bef3d4ecd3f70a4970","first_computed_at":"2026-05-18T00:10:30.857535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:30.857535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GDG132Qw1QHQuK1SMWV0Jf9oHh6+/z9RRX8+oE88CVii+T89ikPhbRu2DvEZAg7NNJ7k+A8cdeB6yfKtTdPAAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:30.858280Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.08184","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92c4c5727b99d0edfced1c80ece6ce22db7b9768aa7b03867aa8237a56e5fd9b","sha256:ccf072112d150731ac09b43e5664b1a09c852ea72ca5dbaf717ca8f7b8588ea1"],"state_sha256":"98353997c9b20150e44713fcd5eb782869092e75a44781a9e21754cb97b91e0c"}