{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:G56RTAQZPQKPLVNG6HZWFSANCH","short_pith_number":"pith:G56RTAQZ","canonical_record":{"source":{"id":"1209.1393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-06T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"ab678320f824d59d3bddce9812b6eab6de5274f881a52167e74f3fc3783cf16b","abstract_canon_sha256":"56fbccb6c554cf617e5044e689b2165aa66d08f9def9f31500075a4d0898e314"},"schema_version":"1.0"},"canonical_sha256":"377d1982197c14f5d5a6f1f362c80d11eeaa5eeaffbb8ba5c8fd753b8b95d24b","source":{"kind":"arxiv","id":"1209.1393","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.1393","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1209.1393v1","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1393","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"G56RTAQZPQKP","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G56RTAQZPQKPLVNG","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G56RTAQZ","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:G56RTAQZPQKPLVNG6HZWFSANCH","target":"record","payload":{"canonical_record":{"source":{"id":"1209.1393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-06T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"ab678320f824d59d3bddce9812b6eab6de5274f881a52167e74f3fc3783cf16b","abstract_canon_sha256":"56fbccb6c554cf617e5044e689b2165aa66d08f9def9f31500075a4d0898e314"},"schema_version":"1.0"},"canonical_sha256":"377d1982197c14f5d5a6f1f362c80d11eeaa5eeaffbb8ba5c8fd753b8b95d24b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:39.084106Z","signature_b64":"pzoHkvv9878dFi9P8P/8/LArS+hy33/6EHZ/WA8EBJ4336QjKLKgDdT/NQMNWX/XXoLCzKmVVKYVoiZlxwB9Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"377d1982197c14f5d5a6f1f362c80d11eeaa5eeaffbb8ba5c8fd753b8b95d24b","last_reissued_at":"2026-05-18T01:54:39.083381Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:39.083381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.1393","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":"2026-05-18T01:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NIXTzbWtlylpk/FPVGg1oUrvbA0zdhLgGHl/9Isr9S5jq5qs4mW3szwHkUXmGdvwaWMMQAXKDfXuQHJFJdwABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:34.816995Z"},"content_sha256":"c355902adf201af8b5e7a291f064c79c6197943df77069382dbd61d63c9d472e","schema_version":"1.0","event_id":"sha256:c355902adf201af8b5e7a291f064c79c6197943df77069382dbd61d63c9d472e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:G56RTAQZPQKPLVNG6HZWFSANCH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tearing up the disc: how black holes accrete","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrew King, Chris Nixon, Daniel Price, Juhan Frank","submitted_at":"2012-09-06T20:00:04Z","abstract_excerpt":"We show that in realistic cases of accretion in active galactic nuclei or stellar-mass X-ray binaries, the Lense-Thirring effect breaks the central regions of tilted accretion discs around spinning black holes into a set of distinct planes with only tenuous flows connecting them. If the original misalignment of the outer disc to the spin axis of the hole is $45^{\\circ} \\lesssim \\theta \\lesssim 135^{\\circ}$, as in $\\sim 70$% of randomly oriented accretion events, the continued precession of these discs sets up partially counter-rotating gas flows. This drives rapid infall as angular momentum is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1393","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":"2026-05-18T01:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xB9SJ9ZRymm9ypHZ5oa1QQnZ9cs0DrEViTjVnRH2+cy+tZivIAUE68qEhQHVkRpmrKrXVh+NdOBD/ck2EapTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:34.817584Z"},"content_sha256":"35b7f397a504f803b34757d772a7845dde2edae30dbc6a1ed03e7cc14805dd15","schema_version":"1.0","event_id":"sha256:35b7f397a504f803b34757d772a7845dde2edae30dbc6a1ed03e7cc14805dd15"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G56RTAQZPQKPLVNG6HZWFSANCH/bundle.json","state_url":"https://pith.science/pith/G56RTAQZPQKPLVNG6HZWFSANCH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G56RTAQZPQKPLVNG6HZWFSANCH/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":"2026-05-27T23:43:34Z","links":{"resolver":"https://pith.science/pith/G56RTAQZPQKPLVNG6HZWFSANCH","bundle":"https://pith.science/pith/G56RTAQZPQKPLVNG6HZWFSANCH/bundle.json","state":"https://pith.science/pith/G56RTAQZPQKPLVNG6HZWFSANCH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G56RTAQZPQKPLVNG6HZWFSANCH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:G56RTAQZPQKPLVNG6HZWFSANCH","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":"56fbccb6c554cf617e5044e689b2165aa66d08f9def9f31500075a4d0898e314","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-06T20:00:04Z","title_canon_sha256":"ab678320f824d59d3bddce9812b6eab6de5274f881a52167e74f3fc3783cf16b"},"schema_version":"1.0","source":{"id":"1209.1393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.1393","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1209.1393v1","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1393","created_at":"2026-05-18T01:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"G56RTAQZPQKP","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G56RTAQZPQKPLVNG","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G56RTAQZ","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:35b7f397a504f803b34757d772a7845dde2edae30dbc6a1ed03e7cc14805dd15","target":"graph","created_at":"2026-05-18T01:54:39Z","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 in realistic cases of accretion in active galactic nuclei or stellar-mass X-ray binaries, the Lense-Thirring effect breaks the central regions of tilted accretion discs around spinning black holes into a set of distinct planes with only tenuous flows connecting them. If the original misalignment of the outer disc to the spin axis of the hole is $45^{\\circ} \\lesssim \\theta \\lesssim 135^{\\circ}$, as in $\\sim 70$% of randomly oriented accretion events, the continued precession of these discs sets up partially counter-rotating gas flows. This drives rapid infall as angular momentum is","authors_text":"Andrew King, Chris Nixon, Daniel Price, Juhan Frank","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-06T20:00:04Z","title":"Tearing up the disc: how black holes accrete"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1393","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:c355902adf201af8b5e7a291f064c79c6197943df77069382dbd61d63c9d472e","target":"record","created_at":"2026-05-18T01:54:39Z","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":"56fbccb6c554cf617e5044e689b2165aa66d08f9def9f31500075a4d0898e314","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-06T20:00:04Z","title_canon_sha256":"ab678320f824d59d3bddce9812b6eab6de5274f881a52167e74f3fc3783cf16b"},"schema_version":"1.0","source":{"id":"1209.1393","kind":"arxiv","version":1}},"canonical_sha256":"377d1982197c14f5d5a6f1f362c80d11eeaa5eeaffbb8ba5c8fd753b8b95d24b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"377d1982197c14f5d5a6f1f362c80d11eeaa5eeaffbb8ba5c8fd753b8b95d24b","first_computed_at":"2026-05-18T01:54:39.083381Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:39.083381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pzoHkvv9878dFi9P8P/8/LArS+hy33/6EHZ/WA8EBJ4336QjKLKgDdT/NQMNWX/XXoLCzKmVVKYVoiZlxwB9Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:39.084106Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.1393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c355902adf201af8b5e7a291f064c79c6197943df77069382dbd61d63c9d472e","sha256:35b7f397a504f803b34757d772a7845dde2edae30dbc6a1ed03e7cc14805dd15"],"state_sha256":"63e5f0b10e2a068d8ee4d33e5b8ba445cdf0b9b615bcfcc9c40a47ed6223aa96"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jcDFHKCq3RtgrLfkw8loaY1i1e6xrzsaIe1yfou3zP5SlX19bG1zHQx/RWysKCEXakmIPDI/pGVXtl1QCMhlBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:43:34.820494Z","bundle_sha256":"dd544f1c2fb5bfd1828ae2ebe7f8ef73c5772b949c75a614db48533924100b19"}}