{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XJSL4XISSGYDTSSBPYXLDPYBRB","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":"f7a0e101a5dbf55e131e2bfae02ff74626cf0f237cd30252a849dfa75beaa666","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-29T16:47:11Z","title_canon_sha256":"a285520369bd8fe0b49904b3cd7281a9ce91a164137dbcc60a87b3d617a0dfd4"},"schema_version":"1.0","source":{"id":"1308.6517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.6517","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"arxiv_version","alias_value":"1308.6517v1","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.6517","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"pith_short_12","alias_value":"XJSL4XISSGYD","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XJSL4XISSGYDTSSB","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XJSL4XIS","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:0c20fb40945241e47a0468ffb6f4bf55176541731e253fbeb4505823efda2ecf","target":"graph","created_at":"2026-05-18T01:47:56Z","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":"The near-IR emission in Type 1 AGNs is thought to be dominated by the thermal radiation from dust grains that are heated by the central engine in the UV/optical and are almost at the sublimation temperature. A brightening of the central source can thus further sublimate the innermost dust, leading to an increase in the radius of the near-IR emitting region. Such changes in radius have been indirectly probed by the measurements of the changes in the time lag between the near-IR and UV/optical light variation. Here we report direct evidence for such a receding sublimation region through the near","authors_text":"(2) UCSB, 3), (3) Univ of Kiel, (4) JPL, (5) NSF, (6) FIZEAU, (7) NAOJ), Florentin Millour (6), Gerd Weigelt (1) ((1) MPIfR, Konrad R. W. Tristram (1), Makoto Kishimoto (1), Rafael Millan-Gabet (4), Richard Barvainis (5), Robert Antonucci (2), Sebastian F. Hoenig (2, Takayuki Kotani (7)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-29T16:47:11Z","title":"Evidence for a receding dust sublimation region around a supermassive black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.6517","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":"sha256:82a2709d247d0cd60324979bf300070fd9cf18e1789d02765b74db983468dbee","target":"record","created_at":"2026-05-18T01:47:56Z","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":"f7a0e101a5dbf55e131e2bfae02ff74626cf0f237cd30252a849dfa75beaa666","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-29T16:47:11Z","title_canon_sha256":"a285520369bd8fe0b49904b3cd7281a9ce91a164137dbcc60a87b3d617a0dfd4"},"schema_version":"1.0","source":{"id":"1308.6517","kind":"arxiv","version":1}},"canonical_sha256":"ba64be5d1291b039ca417e2eb1bf018875ae262d46b7ee5d68c086f9252af8bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba64be5d1291b039ca417e2eb1bf018875ae262d46b7ee5d68c086f9252af8bb","first_computed_at":"2026-05-18T01:47:56.856253Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:56.856253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xhHxpVmReV3ffffniY2s7gDV09OKKwx0JJFFAYDkfWGj3x/i5A1kzJBlx95XMumYmZNAJ4jN5rC7VP5XnoBPDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:56.856736Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.6517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82a2709d247d0cd60324979bf300070fd9cf18e1789d02765b74db983468dbee","sha256:0c20fb40945241e47a0468ffb6f4bf55176541731e253fbeb4505823efda2ecf"],"state_sha256":"4becc474d3c830028ee6d7747ee9ae91682da5a5a4a5f4e5da343d64572450ec"}