{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:6JPWZOJNJ36IIDZRCOZJQJBJ6L","short_pith_number":"pith:6JPWZOJN","schema_version":"1.0","canonical_sha256":"f25f6cb92d4efc840f3113b2982429f2e5096eb673a11361c99d3a274ec61d2d","source":{"kind":"arxiv","id":"2605.27502","version":1},"attestation_state":"computed","paper":{"title":"BlackHoleWeather -- Spin-coupled chaotic cold accretion across the meso-scale: Morphology and thermodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Ashkbiz Danehkar, Davide M. Brustio, Filippo Barbani, Filippo M. Maccagni, Francesco Salvestrini, Francesco Tombesi, Giovanni Stel, Martin Fournier, Massimo Gaspari, Olmo Piana, Pasquale Temi, Valeria Olivares, Vieri Cammelli","submitted_at":"2026-05-26T18:00:01Z","abstract_excerpt":"Supermassive black hole (SMBH) spin is a key but poorly constrained ingredient of the feeding-feedback loop. Chaotic cold accretion (CCA) of cold gas clouds delivers rapidly varying three-dimensional torques that drive spin evolution and jet-axis reorientation, and in turn spin regulates jet power. We introduce a time-dependent SMBH spin model linking resolved multiphase feeding at meso scales to unresolved relativistic angular-momentum transfer at the innermost stable circular orbit (ISCO). We perform GPU-accelerated hydrodynamical simulations of a group atmosphere with jet feedback and SMBH "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.27502","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-26T18:00:01Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"e05978fe7fb769ecce48c0423abb55e3420d6ce66cb4d4252bb3f61486705964","abstract_canon_sha256":"c99d76d82443d7831e5181e9dd6eee894560478c5636aafb034723f7a88c31d9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-28T00:05:21.564292Z","signature_b64":"w1KDeQaxxjBvk3JyHVokQlI9a8XY5iS0kN/pPBJz529zNH8opFsOgJYFjMFg0DXQomyR96FA9Ktn8fSw9o/7DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f25f6cb92d4efc840f3113b2982429f2e5096eb673a11361c99d3a274ec61d2d","last_reissued_at":"2026-05-28T00:05:21.563708Z","signature_status":"signed_v1","first_computed_at":"2026-05-28T00:05:21.563708Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"BlackHoleWeather -- Spin-coupled chaotic cold accretion across the meso-scale: Morphology and thermodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Ashkbiz Danehkar, Davide M. Brustio, Filippo Barbani, Filippo M. Maccagni, Francesco Salvestrini, Francesco Tombesi, Giovanni Stel, Martin Fournier, Massimo Gaspari, Olmo Piana, Pasquale Temi, Valeria Olivares, Vieri Cammelli","submitted_at":"2026-05-26T18:00:01Z","abstract_excerpt":"Supermassive black hole (SMBH) spin is a key but poorly constrained ingredient of the feeding-feedback loop. Chaotic cold accretion (CCA) of cold gas clouds delivers rapidly varying three-dimensional torques that drive spin evolution and jet-axis reorientation, and in turn spin regulates jet power. We introduce a time-dependent SMBH spin model linking resolved multiphase feeding at meso scales to unresolved relativistic angular-momentum transfer at the innermost stable circular orbit (ISCO). We perform GPU-accelerated hydrodynamical simulations of a group atmosphere with jet feedback and SMBH "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27502","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.27502/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2605.27502","created_at":"2026-05-28T00:05:21.563798+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.27502v1","created_at":"2026-05-28T00:05:21.563798+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27502","created_at":"2026-05-28T00:05:21.563798+00:00"},{"alias_kind":"pith_short_12","alias_value":"6JPWZOJNJ36I","created_at":"2026-05-28T00:05:21.563798+00:00"},{"alias_kind":"pith_short_16","alias_value":"6JPWZOJNJ36IIDZR","created_at":"2026-05-28T00:05:21.563798+00:00"},{"alias_kind":"pith_short_8","alias_value":"6JPWZOJN","created_at":"2026-05-28T00:05:21.563798+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L","json":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L.json","graph_json":"https://pith.science/api/pith-number/6JPWZOJNJ36IIDZRCOZJQJBJ6L/graph.json","events_json":"https://pith.science/api/pith-number/6JPWZOJNJ36IIDZRCOZJQJBJ6L/events.json","paper":"https://pith.science/paper/6JPWZOJN"},"agent_actions":{"view_html":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L","download_json":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L.json","view_paper":"https://pith.science/paper/6JPWZOJN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.27502&json=true","fetch_graph":"https://pith.science/api/pith-number/6JPWZOJNJ36IIDZRCOZJQJBJ6L/graph.json","fetch_events":"https://pith.science/api/pith-number/6JPWZOJNJ36IIDZRCOZJQJBJ6L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L/action/storage_attestation","attest_author":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L/action/author_attestation","sign_citation":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L/action/citation_signature","submit_replication":"https://pith.science/pith/6JPWZOJNJ36IIDZRCOZJQJBJ6L/action/replication_record"}},"created_at":"2026-05-28T00:05:21.563798+00:00","updated_at":"2026-05-28T00:05:21.563798+00:00"}