{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:GQZYDAOJBXLYZCYJYRB7C7E6VR","short_pith_number":"pith:GQZYDAOJ","canonical_record":{"source":{"id":"1312.3682","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-13T00:07:06Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"0df8c4872d4b60d82d89b71c9ade864a90eaad5748991594374ef2b58b00a06b","abstract_canon_sha256":"af1d90353291a8a2bdd72494f3ca7365fa29cbfddf0e038f3612a4c0488530a0"},"schema_version":"1.0"},"canonical_sha256":"34338181c90dd78c8b09c443f17c9eac531a91888864b447de764ca5b47347a5","source":{"kind":"arxiv","id":"1312.3682","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3682","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3682v2","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3682","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"pith_short_12","alias_value":"GQZYDAOJBXLY","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GQZYDAOJBXLYZCYJ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GQZYDAOJ","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:GQZYDAOJBXLYZCYJYRB7C7E6VR","target":"record","payload":{"canonical_record":{"source":{"id":"1312.3682","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-13T00:07:06Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"0df8c4872d4b60d82d89b71c9ade864a90eaad5748991594374ef2b58b00a06b","abstract_canon_sha256":"af1d90353291a8a2bdd72494f3ca7365fa29cbfddf0e038f3612a4c0488530a0"},"schema_version":"1.0"},"canonical_sha256":"34338181c90dd78c8b09c443f17c9eac531a91888864b447de764ca5b47347a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:49.519397Z","signature_b64":"Xe+G4PW2SJTZ3esCKhoeraeBWc4ZMpFFPPReRJBcYoDKsS2Tj8vYANi6WpLM0HOfjay8+O5xTIq6K8dGqfzwAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34338181c90dd78c8b09c443f17c9eac531a91888864b447de764ca5b47347a5","last_reissued_at":"2026-05-18T02:51:49.518985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:49.518985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.3682","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:51:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b+7BSGVfPkbtFmdsy5q5E9ifrvd8NBa91kmzXPm2qbAyb6aU2q96wVNEgYRBoOdRWnvh8verZz+LiNVdiilKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:29:00.789386Z"},"content_sha256":"5a895dcc74e50769d3d897ebd4afef7213d7a35a9913a3ec82c617825d0ce77d","schema_version":"1.0","event_id":"sha256:5a895dcc74e50769d3d897ebd4afef7213d7a35a9913a3ec82c617825d0ce77d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:GQZYDAOJBXLYZCYJYRB7C7E6VR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmological black holes from self-gravitating fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Daniel C. Guariento, Elcio Abdalla, Eleftherios Papantonopoulos, Michele Fontanini, Niayesh Afshordi","submitted_at":"2013-12-13T00:07:06Z","abstract_excerpt":"Both cosmological expansion and black holes are ubiquitous features of our observable Universe, yet exact solutions connecting the two have remained elusive. To this end, we study self-gravitating classical fields within dynamical spherically symmetric solutions that can describe black holes in an expanding universe. After attempting a perturbative approach of a known black-hole solution with scalar hair, we show by exact methods that the unique scalar field action with first-order derivatives that can source shear-free expansion around a black hole requires noncanonical kinetic terms. The res"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3682","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:51:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D8h/FZbq9TX/zh+gKEDsxscRGylj+P9zrF4Qq7YS2R2ctLLdCT8Nq1vuuMSdWIX2i1FYg10zN1F2c2SsCvhODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:29:00.790027Z"},"content_sha256":"66dbb3ca4ee0cb034645f24a23d23e63a40f85024f222e5752fdea9e4b7e5ed6","schema_version":"1.0","event_id":"sha256:66dbb3ca4ee0cb034645f24a23d23e63a40f85024f222e5752fdea9e4b7e5ed6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/bundle.json","state_url":"https://pith.science/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/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":"2026-06-06T14:29:00Z","links":{"resolver":"https://pith.science/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR","bundle":"https://pith.science/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/bundle.json","state":"https://pith.science/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GQZYDAOJBXLYZCYJYRB7C7E6VR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GQZYDAOJBXLYZCYJYRB7C7E6VR","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":"af1d90353291a8a2bdd72494f3ca7365fa29cbfddf0e038f3612a4c0488530a0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-13T00:07:06Z","title_canon_sha256":"0df8c4872d4b60d82d89b71c9ade864a90eaad5748991594374ef2b58b00a06b"},"schema_version":"1.0","source":{"id":"1312.3682","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3682","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3682v2","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3682","created_at":"2026-05-18T02:51:49Z"},{"alias_kind":"pith_short_12","alias_value":"GQZYDAOJBXLY","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GQZYDAOJBXLYZCYJ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GQZYDAOJ","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:66dbb3ca4ee0cb034645f24a23d23e63a40f85024f222e5752fdea9e4b7e5ed6","target":"graph","created_at":"2026-05-18T02:51:49Z","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":"Both cosmological expansion and black holes are ubiquitous features of our observable Universe, yet exact solutions connecting the two have remained elusive. To this end, we study self-gravitating classical fields within dynamical spherically symmetric solutions that can describe black holes in an expanding universe. After attempting a perturbative approach of a known black-hole solution with scalar hair, we show by exact methods that the unique scalar field action with first-order derivatives that can source shear-free expansion around a black hole requires noncanonical kinetic terms. The res","authors_text":"Daniel C. Guariento, Elcio Abdalla, Eleftherios Papantonopoulos, Michele Fontanini, Niayesh Afshordi","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-13T00:07:06Z","title":"Cosmological black holes from self-gravitating fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3682","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":"sha256:5a895dcc74e50769d3d897ebd4afef7213d7a35a9913a3ec82c617825d0ce77d","target":"record","created_at":"2026-05-18T02:51:49Z","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":"af1d90353291a8a2bdd72494f3ca7365fa29cbfddf0e038f3612a4c0488530a0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-13T00:07:06Z","title_canon_sha256":"0df8c4872d4b60d82d89b71c9ade864a90eaad5748991594374ef2b58b00a06b"},"schema_version":"1.0","source":{"id":"1312.3682","kind":"arxiv","version":2}},"canonical_sha256":"34338181c90dd78c8b09c443f17c9eac531a91888864b447de764ca5b47347a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34338181c90dd78c8b09c443f17c9eac531a91888864b447de764ca5b47347a5","first_computed_at":"2026-05-18T02:51:49.518985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:49.518985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xe+G4PW2SJTZ3esCKhoeraeBWc4ZMpFFPPReRJBcYoDKsS2Tj8vYANi6WpLM0HOfjay8+O5xTIq6K8dGqfzwAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:49.519397Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.3682","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a895dcc74e50769d3d897ebd4afef7213d7a35a9913a3ec82c617825d0ce77d","sha256:66dbb3ca4ee0cb034645f24a23d23e63a40f85024f222e5752fdea9e4b7e5ed6"],"state_sha256":"711401ae33fe5a49667ebab7bc560dded900cd852502d5873965e668ea5241f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s8FcO6I/z5nbs2F/mnxl0TKlRVPDq19b6bbaJZyfr9UrVQEHlZEA+hMeNXd+9rbEobNvys+hPvptguQ0IRxiBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T14:29:00.793880Z","bundle_sha256":"45a5d5b6251e150e61eeb4662dd1ee3e683d12ce65d276149884732fbcba0832"}}