{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:X4OE6IZISPXBUAPHR6M5ZHXBOE","short_pith_number":"pith:X4OE6IZI","canonical_record":{"source":{"id":"2412.01922","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-02T19:12:14Z","cross_cats_sorted":[],"title_canon_sha256":"9088b1380c1d3c4901784747596dcc618c27d2878acaa1b783ff3de0a553a259","abstract_canon_sha256":"78fee58e6e3a83f63fe0b91691628d2694d254f503b09965b74d92bb93720281"},"schema_version":"1.0"},"canonical_sha256":"bf1c4f232893ee1a01e78f99dc9ee1710235b477de1eaf9a8bddc4d8578d7d84","source":{"kind":"arxiv","id":"2412.01922","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.01922","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"arxiv_version","alias_value":"2412.01922v2","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.01922","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_12","alias_value":"X4OE6IZISPXB","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_16","alias_value":"X4OE6IZISPXBUAPH","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_8","alias_value":"X4OE6IZI","created_at":"2026-07-05T10:45:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:X4OE6IZISPXBUAPHR6M5ZHXBOE","target":"record","payload":{"canonical_record":{"source":{"id":"2412.01922","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-02T19:12:14Z","cross_cats_sorted":[],"title_canon_sha256":"9088b1380c1d3c4901784747596dcc618c27d2878acaa1b783ff3de0a553a259","abstract_canon_sha256":"78fee58e6e3a83f63fe0b91691628d2694d254f503b09965b74d92bb93720281"},"schema_version":"1.0"},"canonical_sha256":"bf1c4f232893ee1a01e78f99dc9ee1710235b477de1eaf9a8bddc4d8578d7d84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:45:57.747652Z","signature_b64":"vCNAGbICN1JMCXImh1ZuTkjwbd2OqSr+VzzjwTlfPN/FFq3EimYFPJak07YqAB6Rs3QSyjg2jQC/cQwcQhvTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf1c4f232893ee1a01e78f99dc9ee1710235b477de1eaf9a8bddc4d8578d7d84","last_reissued_at":"2026-07-05T10:45:57.747166Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:45:57.747166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.01922","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:45:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"58jL1kpz5RaUjjTT+gCKk7dqM6waBiUBZn2LFDAKgAp/ZTJXx6s/ud+z2FjNIopHiMxb36LMxgKh0FrFaYiYDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:02:21.990655Z"},"content_sha256":"90a3df5e96ab469107dc3bbf9d072b61a055013ba45aa6937a3e8aeb05b65abc","schema_version":"1.0","event_id":"sha256:90a3df5e96ab469107dc3bbf9d072b61a055013ba45aa6937a3e8aeb05b65abc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:X4OE6IZISPXBUAPHR6M5ZHXBOE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Late-time Evolution and Instabilities of Tidal Disruption Disks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Anthony L. Piro, Brenna Mockler","submitted_at":"2024-12-02T19:12:14Z","abstract_excerpt":"Observations of tidal disruption events (TDEs) on a timescale of years after the main flare show evidence of continued activity in the form of optical/UV emission, quasi-periodic eruptions, and delayed radio flares. Motivated by this, we explore the time evolution of these disks using semi-analytic models to follow the changing disk properties and feeding rate to the central black hole (BH). We find that thermal instabilities typically begin $\\sim100\\,{\\rm days}$ after the TDE, causing the disk to cycle between high and low accretion states for up to $\\sim10\\,{\\rm yrs}$. The high state is supe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.01922","kind":"arxiv","version":2},"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/2412.01922/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:45:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lk4d6s/ffW9n4tn1UnzWAzrUdIfEVrNWtjedsqmYP4IyUCJdeJp4EP0fIyvFNqUn+sNSsQa5oNvFXwaTwwKMBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:02:21.991555Z"},"content_sha256":"9fc17acea86db703ed4c0ccc41f4d5128232ad55e4ec6588bb4d50759e6031ad","schema_version":"1.0","event_id":"sha256:9fc17acea86db703ed4c0ccc41f4d5128232ad55e4ec6588bb4d50759e6031ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/bundle.json","state_url":"https://pith.science/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/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":"2026-08-03T21:02:21Z","links":{"resolver":"https://pith.science/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE","bundle":"https://pith.science/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/bundle.json","state":"https://pith.science/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X4OE6IZISPXBUAPHR6M5ZHXBOE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:X4OE6IZISPXBUAPHR6M5ZHXBOE","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":"78fee58e6e3a83f63fe0b91691628d2694d254f503b09965b74d92bb93720281","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-02T19:12:14Z","title_canon_sha256":"9088b1380c1d3c4901784747596dcc618c27d2878acaa1b783ff3de0a553a259"},"schema_version":"1.0","source":{"id":"2412.01922","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.01922","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"arxiv_version","alias_value":"2412.01922v2","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.01922","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_12","alias_value":"X4OE6IZISPXB","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_16","alias_value":"X4OE6IZISPXBUAPH","created_at":"2026-07-05T10:45:57Z"},{"alias_kind":"pith_short_8","alias_value":"X4OE6IZI","created_at":"2026-07-05T10:45:57Z"}],"graph_snapshots":[{"event_id":"sha256:9fc17acea86db703ed4c0ccc41f4d5128232ad55e4ec6588bb4d50759e6031ad","target":"graph","created_at":"2026-07-05T10:45:57Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2412.01922/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observations of tidal disruption events (TDEs) on a timescale of years after the main flare show evidence of continued activity in the form of optical/UV emission, quasi-periodic eruptions, and delayed radio flares. Motivated by this, we explore the time evolution of these disks using semi-analytic models to follow the changing disk properties and feeding rate to the central black hole (BH). We find that thermal instabilities typically begin $\\sim100\\,{\\rm days}$ after the TDE, causing the disk to cycle between high and low accretion states for up to $\\sim10\\,{\\rm yrs}$. The high state is supe","authors_text":"Anthony L. Piro, Brenna Mockler","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-02T19:12:14Z","title":"Late-time Evolution and Instabilities of Tidal Disruption Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.01922","kind":"arxiv","version":2},"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":"sha256:90a3df5e96ab469107dc3bbf9d072b61a055013ba45aa6937a3e8aeb05b65abc","target":"record","created_at":"2026-07-05T10:45:57Z","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":"78fee58e6e3a83f63fe0b91691628d2694d254f503b09965b74d92bb93720281","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-02T19:12:14Z","title_canon_sha256":"9088b1380c1d3c4901784747596dcc618c27d2878acaa1b783ff3de0a553a259"},"schema_version":"1.0","source":{"id":"2412.01922","kind":"arxiv","version":2}},"canonical_sha256":"bf1c4f232893ee1a01e78f99dc9ee1710235b477de1eaf9a8bddc4d8578d7d84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf1c4f232893ee1a01e78f99dc9ee1710235b477de1eaf9a8bddc4d8578d7d84","first_computed_at":"2026-07-05T10:45:57.747166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:45:57.747166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vCNAGbICN1JMCXImh1ZuTkjwbd2OqSr+VzzjwTlfPN/FFq3EimYFPJak07YqAB6Rs3QSyjg2jQC/cQwcQhvTBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:45:57.747652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.01922","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90a3df5e96ab469107dc3bbf9d072b61a055013ba45aa6937a3e8aeb05b65abc","sha256:9fc17acea86db703ed4c0ccc41f4d5128232ad55e4ec6588bb4d50759e6031ad"],"state_sha256":"c03205c929651b07a1b66ecfde765d763cf313172d25a91d523165736f19604d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PQ0sH8WWvohu03yNzYXkBQ/m88tPDAxeS2EDRSQLyHT8CNnuF8B8GQwYABh1fw0tFL7zPiJNKpdvSpZeNvQBAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:02:21.998659Z","bundle_sha256":"5f050f8826fd70f904cf77d5352672385bb4d5becf8494834e8769b6960303ae"}}