{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:M3VCD3NU4V4H4OWCEZHVKWYCQZ","short_pith_number":"pith:M3VCD3NU","canonical_record":{"source":{"id":"1508.01583","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-08-07T01:31:00Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"627489798b965aefdd5aeec9d1081d2f9b99208d7d4bc2a63c6f20d775170e74","abstract_canon_sha256":"6966d3d623606d3561943f142470da27637fcd128ee16f3465977609fa4d9a60"},"schema_version":"1.0"},"canonical_sha256":"66ea21edb4e5787e3ac2264f555b02864774702586882e1c6015be794012f493","source":{"kind":"arxiv","id":"1508.01583","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.01583","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.01583v4","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.01583","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"pith_short_12","alias_value":"M3VCD3NU4V4H","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"M3VCD3NU4V4H4OWC","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"M3VCD3NU","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:M3VCD3NU4V4H4OWCEZHVKWYCQZ","target":"record","payload":{"canonical_record":{"source":{"id":"1508.01583","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-08-07T01:31:00Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"627489798b965aefdd5aeec9d1081d2f9b99208d7d4bc2a63c6f20d775170e74","abstract_canon_sha256":"6966d3d623606d3561943f142470da27637fcd128ee16f3465977609fa4d9a60"},"schema_version":"1.0"},"canonical_sha256":"66ea21edb4e5787e3ac2264f555b02864774702586882e1c6015be794012f493","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:45.117672Z","signature_b64":"XcPSZhbfq0OoxsMTanyYbiIAz5hBeDm0GZ50tQeMgoLNIlHCsW8BDku7Ubnm3hhxkJVeqO8ij3mETiRYtFzOBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66ea21edb4e5787e3ac2264f555b02864774702586882e1c6015be794012f493","last_reissued_at":"2026-05-18T01:29:45.117106Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:45.117106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.01583","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:29:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kqn6MDPEjk7Q2MjvcWcijJ0xwzf0Ipr9anZwmsSqft2j8X1g9Xg13d4wX9VKw7KvxqoP1I6ZKoZn1+dELBTJAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:14:13.289778Z"},"content_sha256":"75c7a5f210898df76a91b443d74a991ee2194fe3c99cb9076c3a3ddb8ba043b9","schema_version":"1.0","event_id":"sha256:75c7a5f210898df76a91b443d74a991ee2194fe3c99cb9076c3a3ddb8ba043b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:M3VCD3NU4V4H4OWCEZHVKWYCQZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetised Kerr/CFT correspondence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Marco Astorino","submitted_at":"2015-08-07T01:31:00Z","abstract_excerpt":"The tools of Kerr/CFT correspondence are applied to the Kerr black hole embedded in an axial external magnetic field. Its extremal near horizon geometry remains a warped and twisted product of $AdS_2\\times S^2$. The central charge of the Virasoro algebra, generating the asymptotic symmetries of the near horizon geometry, is found. It is used to reproduce, via the Cardy formula, the Bekenstein-Hawking entropy of the magnetised Kerr black hole as the statistical microscopic entropy of a dual CFT. The presence of the background magnetic field makes available also a second dual CFT picture, based "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.01583","kind":"arxiv","version":4},"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":"2026-05-18T01:29:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MHc3Q9XxvpoprrNrOTHtP282aE+Sl82W+imHetzZ27WZKm994+7tY5n/urB++TQJ0lxscFcFnCPRBfVBoZdNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:14:13.290160Z"},"content_sha256":"4c2d9403234420e0d97d39faebe4617f2c24d98b22e1913c95465c9fb10aaf52","schema_version":"1.0","event_id":"sha256:4c2d9403234420e0d97d39faebe4617f2c24d98b22e1913c95465c9fb10aaf52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/bundle.json","state_url":"https://pith.science/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/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":"2026-06-05T00:14:13Z","links":{"resolver":"https://pith.science/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ","bundle":"https://pith.science/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/bundle.json","state":"https://pith.science/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M3VCD3NU4V4H4OWCEZHVKWYCQZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:M3VCD3NU4V4H4OWCEZHVKWYCQZ","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":"6966d3d623606d3561943f142470da27637fcd128ee16f3465977609fa4d9a60","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-08-07T01:31:00Z","title_canon_sha256":"627489798b965aefdd5aeec9d1081d2f9b99208d7d4bc2a63c6f20d775170e74"},"schema_version":"1.0","source":{"id":"1508.01583","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.01583","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.01583v4","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.01583","created_at":"2026-05-18T01:29:45Z"},{"alias_kind":"pith_short_12","alias_value":"M3VCD3NU4V4H","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"M3VCD3NU4V4H4OWC","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"M3VCD3NU","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:4c2d9403234420e0d97d39faebe4617f2c24d98b22e1913c95465c9fb10aaf52","target":"graph","created_at":"2026-05-18T01:29:45Z","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":"The tools of Kerr/CFT correspondence are applied to the Kerr black hole embedded in an axial external magnetic field. Its extremal near horizon geometry remains a warped and twisted product of $AdS_2\\times S^2$. The central charge of the Virasoro algebra, generating the asymptotic symmetries of the near horizon geometry, is found. It is used to reproduce, via the Cardy formula, the Bekenstein-Hawking entropy of the magnetised Kerr black hole as the statistical microscopic entropy of a dual CFT. The presence of the background magnetic field makes available also a second dual CFT picture, based ","authors_text":"Marco Astorino","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-08-07T01:31:00Z","title":"Magnetised Kerr/CFT correspondence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.01583","kind":"arxiv","version":4},"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":"sha256:75c7a5f210898df76a91b443d74a991ee2194fe3c99cb9076c3a3ddb8ba043b9","target":"record","created_at":"2026-05-18T01:29:45Z","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":"6966d3d623606d3561943f142470da27637fcd128ee16f3465977609fa4d9a60","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-08-07T01:31:00Z","title_canon_sha256":"627489798b965aefdd5aeec9d1081d2f9b99208d7d4bc2a63c6f20d775170e74"},"schema_version":"1.0","source":{"id":"1508.01583","kind":"arxiv","version":4}},"canonical_sha256":"66ea21edb4e5787e3ac2264f555b02864774702586882e1c6015be794012f493","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66ea21edb4e5787e3ac2264f555b02864774702586882e1c6015be794012f493","first_computed_at":"2026-05-18T01:29:45.117106Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:45.117106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XcPSZhbfq0OoxsMTanyYbiIAz5hBeDm0GZ50tQeMgoLNIlHCsW8BDku7Ubnm3hhxkJVeqO8ij3mETiRYtFzOBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:45.117672Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.01583","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75c7a5f210898df76a91b443d74a991ee2194fe3c99cb9076c3a3ddb8ba043b9","sha256:4c2d9403234420e0d97d39faebe4617f2c24d98b22e1913c95465c9fb10aaf52"],"state_sha256":"df837efef593e0547acbda52743fffc6b86366434b0d4fb09f939bfe5520725b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZI2jL2U3HmEBKxiCGRpBzYHtUoeJIgMzs6CWfM56IecSDzuo6yPyAnHfzzU/a77oPcFUivry1W/N2pwOKyGrBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:14:13.292441Z","bundle_sha256":"2d6cd20c8c2113e6d47efab93d9a7d328b95e2740918958832ed414e6ef7ecb5"}}