{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UCD253Z534WA7GRRBHRGWDQFIL","short_pith_number":"pith:UCD253Z5","canonical_record":{"source":{"id":"1905.12858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-30T05:32:01Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"abc45f32e8eea54b105feb951d614940f35eead856d18ad5c8b261e0d2b10460","abstract_canon_sha256":"0f8d08015c07e029d066b3a2d9cec58e95c810cde767b94457537045c8c220b7"},"schema_version":"1.0"},"canonical_sha256":"a087aeef3ddf2c0f9a3109e26b0e0542c983fa672be5b0827dd4204f2b857485","source":{"kind":"arxiv","id":"1905.12858","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12858","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12858v1","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12858","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"pith_short_12","alias_value":"UCD253Z534WA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UCD253Z534WA7GRR","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UCD253Z5","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UCD253Z534WA7GRRBHRGWDQFIL","target":"record","payload":{"canonical_record":{"source":{"id":"1905.12858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-30T05:32:01Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"abc45f32e8eea54b105feb951d614940f35eead856d18ad5c8b261e0d2b10460","abstract_canon_sha256":"0f8d08015c07e029d066b3a2d9cec58e95c810cde767b94457537045c8c220b7"},"schema_version":"1.0"},"canonical_sha256":"a087aeef3ddf2c0f9a3109e26b0e0542c983fa672be5b0827dd4204f2b857485","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:07.889112Z","signature_b64":"X9i6JAWU4iVk2lnQT1hmlauVZ9hr8IcE/UeH3FIY3q+nOsNiJeEv/NBUU8DzC0qBiUGxi0zbl3ujjl5ZTx46Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a087aeef3ddf2c0f9a3109e26b0e0542c983fa672be5b0827dd4204f2b857485","last_reissued_at":"2026-05-17T23:42:07.888438Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:07.888438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.12858","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":"2026-05-17T23:42:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cUi9mDmtjiweOeHlG2rkFov1ejQSPBHJISJlUjVQbqjQTnfA4Itk6RtbH/jm3PggncQoN4Jeivt+ffDYnf/1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:53:04.356587Z"},"content_sha256":"81110aee44c102a0db5d7e95d2ccc9161c5030ba8d596bebb472e8751ccaee34","schema_version":"1.0","event_id":"sha256:81110aee44c102a0db5d7e95d2ccc9161c5030ba8d596bebb472e8751ccaee34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UCD253Z534WA7GRRBHRGWDQFIL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Alignment and precession of a black hole misaligned with its accretion disc: Application to Low Mass X-ray Binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Chandrachur Chakraborty (KIAA, China), India), Srimanta Banerjee (TIFR, Sudip Bhattacharyya (TIFR","submitted_at":"2019-05-30T05:32:01Z","abstract_excerpt":"A thin viscous accretion disc around a Kerr black hole, which is warped due to the Lense-Thirring (LT) effect, was shown to cause the spin axis of the black hole to precess and align with the outer disc. We calculate the total LT torque acting on the black hole, and compute the alignment and precession time-scales for both persistent and transient accretors. In our analysis, we consider the contribution of the inner disc, as it can stay misaligned with the black hole spin for a reasonable range of parameter values. We find that the alignment time-scale increases with a decrease in the Kerr par"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12858","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":""},"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":"2026-05-17T23:42:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rVQph+xzA2cstmX/4poACAEmtQo3daV1PuGcXz0Wza4dwr5QjahFaDc7b3N1k8QuI3imRTnQYwul2380GvMADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:53:04.357246Z"},"content_sha256":"82765e8bc75ee15f49d3d14d2c5126ed50c48b324fcbd566aaaf9fb4c24c4737","schema_version":"1.0","event_id":"sha256:82765e8bc75ee15f49d3d14d2c5126ed50c48b324fcbd566aaaf9fb4c24c4737"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCD253Z534WA7GRRBHRGWDQFIL/bundle.json","state_url":"https://pith.science/pith/UCD253Z534WA7GRRBHRGWDQFIL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCD253Z534WA7GRRBHRGWDQFIL/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":"2026-05-28T19:53:04Z","links":{"resolver":"https://pith.science/pith/UCD253Z534WA7GRRBHRGWDQFIL","bundle":"https://pith.science/pith/UCD253Z534WA7GRRBHRGWDQFIL/bundle.json","state":"https://pith.science/pith/UCD253Z534WA7GRRBHRGWDQFIL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCD253Z534WA7GRRBHRGWDQFIL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UCD253Z534WA7GRRBHRGWDQFIL","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":"0f8d08015c07e029d066b3a2d9cec58e95c810cde767b94457537045c8c220b7","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-30T05:32:01Z","title_canon_sha256":"abc45f32e8eea54b105feb951d614940f35eead856d18ad5c8b261e0d2b10460"},"schema_version":"1.0","source":{"id":"1905.12858","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12858","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12858v1","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12858","created_at":"2026-05-17T23:42:07Z"},{"alias_kind":"pith_short_12","alias_value":"UCD253Z534WA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UCD253Z534WA7GRR","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UCD253Z5","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:82765e8bc75ee15f49d3d14d2c5126ed50c48b324fcbd566aaaf9fb4c24c4737","target":"graph","created_at":"2026-05-17T23:42:07Z","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":"A thin viscous accretion disc around a Kerr black hole, which is warped due to the Lense-Thirring (LT) effect, was shown to cause the spin axis of the black hole to precess and align with the outer disc. We calculate the total LT torque acting on the black hole, and compute the alignment and precession time-scales for both persistent and transient accretors. In our analysis, we consider the contribution of the inner disc, as it can stay misaligned with the black hole spin for a reasonable range of parameter values. We find that the alignment time-scale increases with a decrease in the Kerr par","authors_text":"Chandrachur Chakraborty (KIAA, China), India), Srimanta Banerjee (TIFR, Sudip Bhattacharyya (TIFR","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-30T05:32:01Z","title":"Alignment and precession of a black hole misaligned with its accretion disc: Application to Low Mass X-ray Binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12858","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":"sha256:81110aee44c102a0db5d7e95d2ccc9161c5030ba8d596bebb472e8751ccaee34","target":"record","created_at":"2026-05-17T23:42:07Z","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":"0f8d08015c07e029d066b3a2d9cec58e95c810cde767b94457537045c8c220b7","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-30T05:32:01Z","title_canon_sha256":"abc45f32e8eea54b105feb951d614940f35eead856d18ad5c8b261e0d2b10460"},"schema_version":"1.0","source":{"id":"1905.12858","kind":"arxiv","version":1}},"canonical_sha256":"a087aeef3ddf2c0f9a3109e26b0e0542c983fa672be5b0827dd4204f2b857485","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a087aeef3ddf2c0f9a3109e26b0e0542c983fa672be5b0827dd4204f2b857485","first_computed_at":"2026-05-17T23:42:07.888438Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:07.888438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X9i6JAWU4iVk2lnQT1hmlauVZ9hr8IcE/UeH3FIY3q+nOsNiJeEv/NBUU8DzC0qBiUGxi0zbl3ujjl5ZTx46Cg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:07.889112Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.12858","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81110aee44c102a0db5d7e95d2ccc9161c5030ba8d596bebb472e8751ccaee34","sha256:82765e8bc75ee15f49d3d14d2c5126ed50c48b324fcbd566aaaf9fb4c24c4737"],"state_sha256":"cac7a4c21efc0ce13ad67060751340999c141c893099af5562125e0833b90faf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3UPoczRJT16+0k3i4sRGJp4ClYb1oTQ1NV2zGqK2BfBzjRnW0jljSdBCRLeeAuhD1Cvfg4esVN1xr/Fdi82oCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:53:04.360731Z","bundle_sha256":"f7f2ed4976f0ac9cf164739361969b37cf4cc17d6a76daae11e734635d773709"}}