{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:DIZA3CDTLJWXL66NXQEGDXB3TR","short_pith_number":"pith:DIZA3CDT","canonical_record":{"source":{"id":"1505.01281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-06T08:32:01Z","cross_cats_sorted":["gr-qc","physics.flu-dyn"],"title_canon_sha256":"b362d87dcf8d5b5cfc50820aa6acf79003b1191fc0ad027e94591cfa62da681d","abstract_canon_sha256":"81c4252edd290ffadd62ce76dbf4621682495690e7bb1255209ab611a427e789"},"schema_version":"1.0"},"canonical_sha256":"1a320d88735a6d75fbcdbc0861dc3b9c663d76d10379f6cee93b0e47a7c7bb0b","source":{"kind":"arxiv","id":"1505.01281","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01281","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01281v1","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01281","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"pith_short_12","alias_value":"DIZA3CDTLJWX","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIZA3CDTLJWXL66N","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIZA3CDT","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:DIZA3CDTLJWXL66NXQEGDXB3TR","target":"record","payload":{"canonical_record":{"source":{"id":"1505.01281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-06T08:32:01Z","cross_cats_sorted":["gr-qc","physics.flu-dyn"],"title_canon_sha256":"b362d87dcf8d5b5cfc50820aa6acf79003b1191fc0ad027e94591cfa62da681d","abstract_canon_sha256":"81c4252edd290ffadd62ce76dbf4621682495690e7bb1255209ab611a427e789"},"schema_version":"1.0"},"canonical_sha256":"1a320d88735a6d75fbcdbc0861dc3b9c663d76d10379f6cee93b0e47a7c7bb0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:27.059379Z","signature_b64":"4UDdA41gk+CUgHsOjzcvgPXxpYtg6P4dEHXNum0qMdWa21QSjt6KRDhStcX3tSKiVGHAeeFb5wRLzp6K9LSiBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a320d88735a6d75fbcdbc0861dc3b9c663d76d10379f6cee93b0e47a7c7bb0b","last_reissued_at":"2026-05-18T01:37:27.058688Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:27.058688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.01281","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":"2026-05-18T01:37:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yicu/BbOZu/xcYa9f5ebsD15IfLkXDnpMZljoLg7fkdH+3eeQsFJOi5OIDX7lPe5zBLuVCI8f148QMsWKi2WAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:05:59.996477Z"},"content_sha256":"b4816cd99bbc0cfbd79897df8a2c80949ab06b4cd8d7a396d235d71173e49f41","schema_version":"1.0","event_id":"sha256:b4816cd99bbc0cfbd79897df8a2c80949ab06b4cd8d7a396d235d71173e49f41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:DIZA3CDTLJWXL66NXQEGDXB3TR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydromagnetics of advective accretion flows around black holes: Removal of angular momentum by large scale magnetic stresses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","physics.flu-dyn"],"primary_cat":"astro-ph.HE","authors_text":"Banibrata Mukhopadhyay, Koushik Chatterjee","submitted_at":"2015-05-06T08:32:01Z","abstract_excerpt":"We show that the removal of angular momentum is possible in the presence of large scale magnetic stresses in geometrically thick, advective, sub-Keplerian accretion flows around black holes in steady-state, in the complete absence of alpha-viscosity. The efficiency of such an angular momentum transfer could be equivalent to that of alpha-viscosity with alpha=0.01-0.08. Nevertheless, required field is well below its equipartition value, leading to a magnetically stable disk flow. This is essentially important in order to describe the hard spectral state of the sources, when the flow is non/sub-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01281","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":"2026-05-18T01:37:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U14c00yQvUlEJlAp9+KqEQqBib/s32Zkrf/NlNDyor14jcJoCxg4AGhACONv6XxKi6KkgUjHlFm4odBfyG98Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:05:59.997181Z"},"content_sha256":"90d1ec944ae5060ffb7aaf43812ba222c5e813f9896336738a68598e4e6ea884","schema_version":"1.0","event_id":"sha256:90d1ec944ae5060ffb7aaf43812ba222c5e813f9896336738a68598e4e6ea884"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/bundle.json","state_url":"https://pith.science/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/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":"2026-06-07T23:05:59Z","links":{"resolver":"https://pith.science/pith/DIZA3CDTLJWXL66NXQEGDXB3TR","bundle":"https://pith.science/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/bundle.json","state":"https://pith.science/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIZA3CDTLJWXL66NXQEGDXB3TR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DIZA3CDTLJWXL66NXQEGDXB3TR","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":"81c4252edd290ffadd62ce76dbf4621682495690e7bb1255209ab611a427e789","cross_cats_sorted":["gr-qc","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-06T08:32:01Z","title_canon_sha256":"b362d87dcf8d5b5cfc50820aa6acf79003b1191fc0ad027e94591cfa62da681d"},"schema_version":"1.0","source":{"id":"1505.01281","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01281","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01281v1","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01281","created_at":"2026-05-18T01:37:27Z"},{"alias_kind":"pith_short_12","alias_value":"DIZA3CDTLJWX","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DIZA3CDTLJWXL66N","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DIZA3CDT","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:90d1ec944ae5060ffb7aaf43812ba222c5e813f9896336738a68598e4e6ea884","target":"graph","created_at":"2026-05-18T01:37:27Z","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 show that the removal of angular momentum is possible in the presence of large scale magnetic stresses in geometrically thick, advective, sub-Keplerian accretion flows around black holes in steady-state, in the complete absence of alpha-viscosity. The efficiency of such an angular momentum transfer could be equivalent to that of alpha-viscosity with alpha=0.01-0.08. Nevertheless, required field is well below its equipartition value, leading to a magnetically stable disk flow. This is essentially important in order to describe the hard spectral state of the sources, when the flow is non/sub-","authors_text":"Banibrata Mukhopadhyay, Koushik Chatterjee","cross_cats":["gr-qc","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-06T08:32:01Z","title":"Hydromagnetics of advective accretion flows around black holes: Removal of angular momentum by large scale magnetic stresses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01281","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:b4816cd99bbc0cfbd79897df8a2c80949ab06b4cd8d7a396d235d71173e49f41","target":"record","created_at":"2026-05-18T01:37:27Z","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":"81c4252edd290ffadd62ce76dbf4621682495690e7bb1255209ab611a427e789","cross_cats_sorted":["gr-qc","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-06T08:32:01Z","title_canon_sha256":"b362d87dcf8d5b5cfc50820aa6acf79003b1191fc0ad027e94591cfa62da681d"},"schema_version":"1.0","source":{"id":"1505.01281","kind":"arxiv","version":1}},"canonical_sha256":"1a320d88735a6d75fbcdbc0861dc3b9c663d76d10379f6cee93b0e47a7c7bb0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a320d88735a6d75fbcdbc0861dc3b9c663d76d10379f6cee93b0e47a7c7bb0b","first_computed_at":"2026-05-18T01:37:27.058688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:27.058688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4UDdA41gk+CUgHsOjzcvgPXxpYtg6P4dEHXNum0qMdWa21QSjt6KRDhStcX3tSKiVGHAeeFb5wRLzp6K9LSiBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:27.059379Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.01281","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4816cd99bbc0cfbd79897df8a2c80949ab06b4cd8d7a396d235d71173e49f41","sha256:90d1ec944ae5060ffb7aaf43812ba222c5e813f9896336738a68598e4e6ea884"],"state_sha256":"79744293494c21d9077bcd434c550c01b2a2cdbf710b39de6981d47377562850"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J1y2n50ZMVQp7FudTDk6cfM6jAPAO/u8VFFQB7XI8RpePOEmIwRj/a6YuQTiIhseYQHA9+WD1N7Xu/yQ4KwABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T23:06:00.000826Z","bundle_sha256":"a5751fdda4144088f719c95e7c73d8ca44328904eeef8c93bd648c761d50e2a3"}}