{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:GFXZQA2DYSLLZQ3TH5RKSGOUM3","short_pith_number":"pith:GFXZQA2D","canonical_record":{"source":{"id":"2512.21669","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-12-25T13:26:08Z","cross_cats_sorted":[],"title_canon_sha256":"785d38da8f10d27bbcc07e39ad5b3888e0cec3c6a68d607e2d249c540f995949","abstract_canon_sha256":"8aaad73e7409df9e0435086f3dcd771c07b918bfdefdea7ed9965ea2b32eb029"},"schema_version":"1.0"},"canonical_sha256":"316f980343c496bcc3733f62a919d466c32810e7d90e1d2eb50f7899a4fd65ab","source":{"kind":"arxiv","id":"2512.21669","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.21669","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2512.21669v2","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.21669","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"GFXZQA2DYSLL","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"GFXZQA2DYSLLZQ3T","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"GFXZQA2D","created_at":"2026-07-22T01:22:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:GFXZQA2DYSLLZQ3TH5RKSGOUM3","target":"record","payload":{"canonical_record":{"source":{"id":"2512.21669","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-12-25T13:26:08Z","cross_cats_sorted":[],"title_canon_sha256":"785d38da8f10d27bbcc07e39ad5b3888e0cec3c6a68d607e2d249c540f995949","abstract_canon_sha256":"8aaad73e7409df9e0435086f3dcd771c07b918bfdefdea7ed9965ea2b32eb029"},"schema_version":"1.0"},"canonical_sha256":"316f980343c496bcc3733f62a919d466c32810e7d90e1d2eb50f7899a4fd65ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-22T01:22:18.144015Z","signature_b64":"hYZKSIY3+yzTjb+wOMkS/mftElesHyhs4aRu1G2o4NKfU1rMt0YZ/DczAEaZZR08QdwNNfGuW5uhE2V1u1i7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"316f980343c496bcc3733f62a919d466c32810e7d90e1d2eb50f7899a4fd65ab","last_reissued_at":"2026-07-22T01:22:18.143108Z","signature_status":"signed_v1","first_computed_at":"2026-07-22T01:22:18.143108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.21669","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":"2026-07-22T01:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Db1r2EPFMOuQUL+h/ZBOAGs8bJNpiLqLc8enbWcu1nhUaJ2CIE10MHbURp/Cg228cppZB81kRJbblcvvz5FGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:36:45.083002Z"},"content_sha256":"b1adc846aed43360e2da6a217b818bd1d7c52f4dfee95143bb9b9324ae06e214","schema_version":"1.0","event_id":"sha256:b1adc846aed43360e2da6a217b818bd1d7c52f4dfee95143bb9b9324ae06e214"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:GFXZQA2DYSLLZQ3TH5RKSGOUM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLBI Diagnostics of Off-axis Jets in Radio Flares of Tidal Disruption Events","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Tatsuya Matsumoto","submitted_at":"2025-12-25T13:26:08Z","abstract_excerpt":"The origin of late-time radio flares in tidal disruption events remains unclear. In particular, the peculiar radio flare observed in AT2018hyz has motivated two leading scenarios: a delayed outflow launched $\\sim1000\\,\\rm days$ after discovery, or an off-axis relativistic jet directed far from our line of sight. Very long baseline interferometry (VLBI) imaging provides the most direct way to distinguish between these scenarios. In this paper, we calculate synthetic radio images for both models and examine their observational signatures. The motion of the emission centroid is the most powerful "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.21669","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/2512.21669/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":"2026-07-22T01:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tUJf9ywSqsomH8jDwDpKDLeMPU/Pm3Kgn9KBxXb4Uck0aIQwmtWW8oC92t7tdGl4TIPTspNC9ZscdBoE/4R+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:36:45.083623Z"},"content_sha256":"6aed1f2fe7416a90c2235b361a9d8ddb0eb97bab252b20c7da7bc7d93b5b3c2f","schema_version":"1.0","event_id":"sha256:6aed1f2fe7416a90c2235b361a9d8ddb0eb97bab252b20c7da7bc7d93b5b3c2f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/bundle.json","state_url":"https://pith.science/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/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":"2026-08-04T08:36:45Z","links":{"resolver":"https://pith.science/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3","bundle":"https://pith.science/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/bundle.json","state":"https://pith.science/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GFXZQA2DYSLLZQ3TH5RKSGOUM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:GFXZQA2DYSLLZQ3TH5RKSGOUM3","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":"8aaad73e7409df9e0435086f3dcd771c07b918bfdefdea7ed9965ea2b32eb029","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-12-25T13:26:08Z","title_canon_sha256":"785d38da8f10d27bbcc07e39ad5b3888e0cec3c6a68d607e2d249c540f995949"},"schema_version":"1.0","source":{"id":"2512.21669","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.21669","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2512.21669v2","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.21669","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"GFXZQA2DYSLL","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"GFXZQA2DYSLLZQ3T","created_at":"2026-07-22T01:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"GFXZQA2D","created_at":"2026-07-22T01:22:18Z"}],"graph_snapshots":[{"event_id":"sha256:6aed1f2fe7416a90c2235b361a9d8ddb0eb97bab252b20c7da7bc7d93b5b3c2f","target":"graph","created_at":"2026-07-22T01:22:18Z","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/2512.21669/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The origin of late-time radio flares in tidal disruption events remains unclear. In particular, the peculiar radio flare observed in AT2018hyz has motivated two leading scenarios: a delayed outflow launched $\\sim1000\\,\\rm days$ after discovery, or an off-axis relativistic jet directed far from our line of sight. Very long baseline interferometry (VLBI) imaging provides the most direct way to distinguish between these scenarios. In this paper, we calculate synthetic radio images for both models and examine their observational signatures. The motion of the emission centroid is the most powerful ","authors_text":"Tatsuya Matsumoto","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-12-25T13:26:08Z","title":"VLBI Diagnostics of Off-axis Jets in Radio Flares of Tidal Disruption Events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.21669","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:b1adc846aed43360e2da6a217b818bd1d7c52f4dfee95143bb9b9324ae06e214","target":"record","created_at":"2026-07-22T01:22:18Z","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":"8aaad73e7409df9e0435086f3dcd771c07b918bfdefdea7ed9965ea2b32eb029","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-12-25T13:26:08Z","title_canon_sha256":"785d38da8f10d27bbcc07e39ad5b3888e0cec3c6a68d607e2d249c540f995949"},"schema_version":"1.0","source":{"id":"2512.21669","kind":"arxiv","version":2}},"canonical_sha256":"316f980343c496bcc3733f62a919d466c32810e7d90e1d2eb50f7899a4fd65ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"316f980343c496bcc3733f62a919d466c32810e7d90e1d2eb50f7899a4fd65ab","first_computed_at":"2026-07-22T01:22:18.143108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-22T01:22:18.143108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hYZKSIY3+yzTjb+wOMkS/mftElesHyhs4aRu1G2o4NKfU1rMt0YZ/DczAEaZZR08QdwNNfGuW5uhE2V1u1i7BQ==","signature_status":"signed_v1","signed_at":"2026-07-22T01:22:18.144015Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.21669","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1adc846aed43360e2da6a217b818bd1d7c52f4dfee95143bb9b9324ae06e214","sha256:6aed1f2fe7416a90c2235b361a9d8ddb0eb97bab252b20c7da7bc7d93b5b3c2f"],"state_sha256":"87e4cfd4d451dd34db440f136ac4060113c2bc632286e21a36ca86fda565eaed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2dy65wq51g98ZgOf8faYRwl81GFqkbqYH2NCIjBGTmQw3HH72fZrBJA6Z1UTzJFnG7PKKFqONg6eXnHMPrTEBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T08:36:45.090350Z","bundle_sha256":"ac9aebb641466f8521637eae3d9835b17edb377d66863adc6b34ab9dd239b393"}}