{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ICGKS7RMSOAWUIWKIKS2IJA73C","short_pith_number":"pith:ICGKS7RM","canonical_record":{"source":{"id":"2604.23916","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-27T00:10:19Z","cross_cats_sorted":[],"title_canon_sha256":"17601f34e19e5c56e07e70bda9929e8aa65deac313d407a04a32577c69e0073e","abstract_canon_sha256":"1554eadd08633113e20a55c94c82d71c7aad5ce8a764e83edb78f5346a4930be"},"schema_version":"1.0"},"canonical_sha256":"408ca97e2c93816a22ca42a5a4241fd897e381565ba3bea54eab4967f75c66dd","source":{"kind":"arxiv","id":"2604.23916","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.23916","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"arxiv_version","alias_value":"2604.23916v2","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.23916","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_12","alias_value":"ICGKS7RMSOAW","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_16","alias_value":"ICGKS7RMSOAWUIWK","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_8","alias_value":"ICGKS7RM","created_at":"2026-07-02T00:18:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ICGKS7RMSOAWUIWKIKS2IJA73C","target":"record","payload":{"canonical_record":{"source":{"id":"2604.23916","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-27T00:10:19Z","cross_cats_sorted":[],"title_canon_sha256":"17601f34e19e5c56e07e70bda9929e8aa65deac313d407a04a32577c69e0073e","abstract_canon_sha256":"1554eadd08633113e20a55c94c82d71c7aad5ce8a764e83edb78f5346a4930be"},"schema_version":"1.0"},"canonical_sha256":"408ca97e2c93816a22ca42a5a4241fd897e381565ba3bea54eab4967f75c66dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-02T00:18:29.193711Z","signature_b64":"IbW2CLJjvkTqEUts82QD4p7eItqaMJpGjyS2TafyL3SqbQOz8VqRykE4Q38xyXa4WGKLmLyLaLDDR98E8vd/Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"408ca97e2c93816a22ca42a5a4241fd897e381565ba3bea54eab4967f75c66dd","last_reissued_at":"2026-07-02T00:18:29.192930Z","signature_status":"signed_v1","first_computed_at":"2026-07-02T00:18:29.192930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2604.23916","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":"2026-07-02T00:18:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XJcT2PIgTR1gkJ4nZ014aZzF8RjHCOvr9y11gqHFxgi998Ge0AqBXo8yr1G/YSNIhpx3vVUTO8EE7kFFTmgkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:38:03.913338Z"},"content_sha256":"e39c1a0c04e6ca0f358e846ece7175f8cfaa009131a8b3e8fef43558c7b0a65f","schema_version":"1.0","event_id":"sha256:e39c1a0c04e6ca0f358e846ece7175f8cfaa009131a8b3e8fef43558c7b0a65f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ICGKS7RMSOAWUIWKIKS2IJA73C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GRRMHD Simulations of State Transitions in Non-Jetted Tidal Disruption Events","license":"http://creativecommons.org/licenses/by/4.0/","headline":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times.","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aviyel Ahiyya, Brandon Curd, Richard Anantua, Safira Heridia","submitted_at":"2026-04-27T00:10:19Z","abstract_excerpt":"Circularization of the stream material into a debris cloud during tidal disruption events (TDEs) was recently demonstrated in one of the most accurate long duration TDE simulations to-date. The cooling envelope model (CEM) provides a description of the circularized debris cloud and its emission over time well beyond circularization across different disruption parameters. In the CEM, sub-Eddington accretion rates occur early in TDEs and the debris has a shallow density profile of roughly $\\rho \\propto r^{-1}$, with Eddington accretion only being achieved after several months. To explore the lat"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We find that the disk becomes thermally unstable within 17.1-46.5 days depending on the spin of the BH. Thermal spectra show a soft X-ray excess prior to collapse, with a nearly two order of magnitude decline in X-ray luminosity upon disk collapse. The spectral properties and soft X-ray luminosity in our models are similar to the TDE AT2021ehb.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The initial magnetized torus accurately represents the late-stage debris from the cooling envelope model without requiring full self-consistent evolution from the initial stellar disruption; the simulations also assume standard ideal MHD and radiative cooling prescriptions whose validity at these densities is not re-derived here.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"GRRMHD simulations of TDE debris disks reveal thermal instability and collapse within weeks, producing soft X-ray excess followed by a sharp luminosity drop that resembles AT2021ehb observations.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"2c21c62f0bbd8e7a6aae4e898657cf34540a5dd2306371db6cc5f7ed6d7e27fd"},"source":{"id":"2604.23916","kind":"arxiv","version":2},"verdict":{"id":"3f98b8af-1bd7-421e-a667-9b16a86fcace","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-08T02:19:05.423911Z","strongest_claim":"We find that the disk becomes thermally unstable within 17.1-46.5 days depending on the spin of the BH. Thermal spectra show a soft X-ray excess prior to collapse, with a nearly two order of magnitude decline in X-ray luminosity upon disk collapse. The spectral properties and soft X-ray luminosity in our models are similar to the TDE AT2021ehb.","one_line_summary":"GRRMHD simulations of TDE debris disks reveal thermal instability and collapse within weeks, producing soft X-ray excess followed by a sharp luminosity drop that resembles AT2021ehb observations.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The initial magnetized torus accurately represents the late-stage debris from the cooling envelope model without requiring full self-consistent evolution from the initial stellar disruption; the simulations also assume standard ideal MHD and radiative cooling prescriptions whose validity at these densities is not re-derived here.","pith_extraction_headline":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.23916/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-21T07:42:07.591340Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T22:36:19.147955Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"38aae3b5292ca4e6692943104fc92f17668ac9e9c20aeaf635ab8e8a3497668f"},"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":"3f98b8af-1bd7-421e-a667-9b16a86fcace"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-02T00:18:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nhtJBkzkfNrqyiMCRUNs1ur0al/06YC8zro2pBClAAnMJeeai7F+f1VTxLXkVV0xwo/pcFQT2Si3SMIIM3YTCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:38:03.913889Z"},"content_sha256":"9d2b1407a26250ccc8f91626e75b1a17b109cc610a86822bbdf7ec00662590e3","schema_version":"1.0","event_id":"sha256:9d2b1407a26250ccc8f91626e75b1a17b109cc610a86822bbdf7ec00662590e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/bundle.json","state_url":"https://pith.science/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/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":"2026-08-04T05:38:03Z","links":{"resolver":"https://pith.science/pith/ICGKS7RMSOAWUIWKIKS2IJA73C","bundle":"https://pith.science/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/bundle.json","state":"https://pith.science/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ICGKS7RMSOAWUIWKIKS2IJA73C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ICGKS7RMSOAWUIWKIKS2IJA73C","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":"1554eadd08633113e20a55c94c82d71c7aad5ce8a764e83edb78f5346a4930be","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-27T00:10:19Z","title_canon_sha256":"17601f34e19e5c56e07e70bda9929e8aa65deac313d407a04a32577c69e0073e"},"schema_version":"1.0","source":{"id":"2604.23916","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.23916","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"arxiv_version","alias_value":"2604.23916v2","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.23916","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_12","alias_value":"ICGKS7RMSOAW","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_16","alias_value":"ICGKS7RMSOAWUIWK","created_at":"2026-07-02T00:18:29Z"},{"alias_kind":"pith_short_8","alias_value":"ICGKS7RM","created_at":"2026-07-02T00:18:29Z"}],"graph_snapshots":[{"event_id":"sha256:9d2b1407a26250ccc8f91626e75b1a17b109cc610a86822bbdf7ec00662590e3","target":"graph","created_at":"2026-07-02T00:18:29Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"We find that the disk becomes thermally unstable within 17.1-46.5 days depending on the spin of the BH. Thermal spectra show a soft X-ray excess prior to collapse, with a nearly two order of magnitude decline in X-ray luminosity upon disk collapse. The spectral properties and soft X-ray luminosity in our models are similar to the TDE AT2021ehb."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The initial magnetized torus accurately represents the late-stage debris from the cooling envelope model without requiring full self-consistent evolution from the initial stellar disruption; the simulations also assume standard ideal MHD and radiative cooling prescriptions whose validity at these densities is not re-derived here."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"GRRMHD simulations of TDE debris disks reveal thermal instability and collapse within weeks, producing soft X-ray excess followed by a sharp luminosity drop that resembles AT2021ehb observations."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times."}],"snapshot_sha256":"2c21c62f0bbd8e7a6aae4e898657cf34540a5dd2306371db6cc5f7ed6d7e27fd"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-21T07:42:07.591340Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"doi_compliance","ran_at":"2026-05-19T22:36:19.147955Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2604.23916/integrity.json","findings":[],"snapshot_sha256":"38aae3b5292ca4e6692943104fc92f17668ac9e9c20aeaf635ab8e8a3497668f","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Circularization of the stream material into a debris cloud during tidal disruption events (TDEs) was recently demonstrated in one of the most accurate long duration TDE simulations to-date. The cooling envelope model (CEM) provides a description of the circularized debris cloud and its emission over time well beyond circularization across different disruption parameters. In the CEM, sub-Eddington accretion rates occur early in TDEs and the debris has a shallow density profile of roughly $\\rho \\propto r^{-1}$, with Eddington accretion only being achieved after several months. To explore the lat","authors_text":"Aviyel Ahiyya, Brandon Curd, Richard Anantua, Safira Heridia","cross_cats":[],"headline":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times.","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-27T00:10:19Z","title":"GRRMHD Simulations of State Transitions in Non-Jetted Tidal Disruption Events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.23916","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-08T02:19:05.423911Z","id":"3f98b8af-1bd7-421e-a667-9b16a86fcace","model_set":{"reader":"grok-4.3"},"one_line_summary":"GRRMHD simulations of TDE debris disks reveal thermal instability and collapse within weeks, producing soft X-ray excess followed by a sharp luminosity drop that resembles AT2021ehb observations.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"GRRMHD simulations show TDE disks become thermally unstable in 17-46 days, causing X-ray luminosity to drop by nearly 100 times.","strongest_claim":"We find that the disk becomes thermally unstable within 17.1-46.5 days depending on the spin of the BH. Thermal spectra show a soft X-ray excess prior to collapse, with a nearly two order of magnitude decline in X-ray luminosity upon disk collapse. The spectral properties and soft X-ray luminosity in our models are similar to the TDE AT2021ehb.","weakest_assumption":"The initial magnetized torus accurately represents the late-stage debris from the cooling envelope model without requiring full self-consistent evolution from the initial stellar disruption; the simulations also assume standard ideal MHD and radiative cooling prescriptions whose validity at these densities is not re-derived here."}},"verdict_id":"3f98b8af-1bd7-421e-a667-9b16a86fcace"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e39c1a0c04e6ca0f358e846ece7175f8cfaa009131a8b3e8fef43558c7b0a65f","target":"record","created_at":"2026-07-02T00:18:29Z","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":"1554eadd08633113e20a55c94c82d71c7aad5ce8a764e83edb78f5346a4930be","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-04-27T00:10:19Z","title_canon_sha256":"17601f34e19e5c56e07e70bda9929e8aa65deac313d407a04a32577c69e0073e"},"schema_version":"1.0","source":{"id":"2604.23916","kind":"arxiv","version":2}},"canonical_sha256":"408ca97e2c93816a22ca42a5a4241fd897e381565ba3bea54eab4967f75c66dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"408ca97e2c93816a22ca42a5a4241fd897e381565ba3bea54eab4967f75c66dd","first_computed_at":"2026-07-02T00:18:29.192930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-02T00:18:29.192930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IbW2CLJjvkTqEUts82QD4p7eItqaMJpGjyS2TafyL3SqbQOz8VqRykE4Q38xyXa4WGKLmLyLaLDDR98E8vd/Dg==","signature_status":"signed_v1","signed_at":"2026-07-02T00:18:29.193711Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.23916","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e39c1a0c04e6ca0f358e846ece7175f8cfaa009131a8b3e8fef43558c7b0a65f","sha256:9d2b1407a26250ccc8f91626e75b1a17b109cc610a86822bbdf7ec00662590e3"],"state_sha256":"15ffc7fc21e1ccba6b2bc7321a48ef9ae867297c55b023d3b89da6ab80a967d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hNFF4hWOyG5MLbIVTJ6DM/DDJ/+JRN5uRxw428aDx0ASZ2SQ+YqjSMu9MIC5AyZJk3OSezaF68aWaEhapU+5DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T05:38:03.916693Z","bundle_sha256":"181d65c7a52b063bd8f950bd9da8b923b6827c123176270815def89b6fdb4b31"}}