{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:YFCAIGMCUXW7IVYUWQK6FAXZBF","short_pith_number":"pith:YFCAIGMC","canonical_record":{"source":{"id":"1401.2785","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-13T11:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"82588f98f71f98d8a2325a8d9624f0d949683d0204393beb59e67ecb371e0134","abstract_canon_sha256":"dc9ba2501e053808cf757ec87a8a08037879b69d5673e6a8d1ca357f4716849e"},"schema_version":"1.0"},"canonical_sha256":"c144041982a5edf45714b415e282f9095d0f0d134311398200224f9579979be0","source":{"kind":"arxiv","id":"1401.2785","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2785","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2785v1","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2785","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"pith_short_12","alias_value":"YFCAIGMCUXW7","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YFCAIGMCUXW7IVYU","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YFCAIGMC","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:YFCAIGMCUXW7IVYUWQK6FAXZBF","target":"record","payload":{"canonical_record":{"source":{"id":"1401.2785","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-13T11:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"82588f98f71f98d8a2325a8d9624f0d949683d0204393beb59e67ecb371e0134","abstract_canon_sha256":"dc9ba2501e053808cf757ec87a8a08037879b69d5673e6a8d1ca357f4716849e"},"schema_version":"1.0"},"canonical_sha256":"c144041982a5edf45714b415e282f9095d0f0d134311398200224f9579979be0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:40.590565Z","signature_b64":"3rWjYOLtFVIMpQ0+/G+sd6nal9rApVMXAxYxTmKWSrte+AgCXfw5mVYzSp/Xgi8VOsTlNGTs5g3OofY9t022Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c144041982a5edf45714b415e282f9095d0f0d134311398200224f9579979be0","last_reissued_at":"2026-05-18T02:47:40.589803Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:40.589803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.2785","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":"2026-05-18T02:47:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T4yCxaXqYDpRtyYChUit7EMuAHYvFp3H7QwV4yodyNsb3NuKececKRhPkdy0/dzxmFZP0OA/2x8f7Jp4EY/7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:35:14.501706Z"},"content_sha256":"4c7609a4e2b1ee776afaee25d37160e1a78db3c4d9b377b3441cff0b76f6e8df","schema_version":"1.0","event_id":"sha256:4c7609a4e2b1ee776afaee25d37160e1a78db3c4d9b377b3441cff0b76f6e8df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:YFCAIGMCUXW7IVYUWQK6FAXZBF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Average Size and Temperature Profile of Quasar Accretion Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. M. Mosquera, C. S. Kochanek, E. Falco, E. Mediavilla, J. A. Mu\\~noz, J. Jim\\'enez-Vicente, V. Motta","submitted_at":"2014-01-13T11:01:39Z","abstract_excerpt":"We use multi-wavelength microlensing measurements of a sample of 10 image pairs from 8 lensed quasars to study the structure of their accretion disks. By using spectroscopy or narrow band photometry we have been able to remove contamination from the weakly microlensed broad emission lines, extinction and any uncertainties in the large-scale macro magnification of the lens model. We determine a maximum likelihood estimate for the exponent of the size versus wavelength scaling ($r_s\\propto \\lambda^p$ corresponding to a disk temperature profile of $T\\propto r^{-1/p}$) of $p=0.75^{+0.2}_{-0.2}$, a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2785","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":"2026-05-18T02:47:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"//3B6wCaNeJWqJoEO5KglwHGM1zXQpT10eNPCVdcFgZxaiOpM0fWzXtnovV3qwlxGyRGr5TlwmIK/3lw70E8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:35:14.502359Z"},"content_sha256":"b166d465b4a54d26fb685ec58b9b2e4c5cb10e0526cb7562242e18ee9af9b020","schema_version":"1.0","event_id":"sha256:b166d465b4a54d26fb685ec58b9b2e4c5cb10e0526cb7562242e18ee9af9b020"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/bundle.json","state_url":"https://pith.science/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/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":"2026-05-27T02:35:14Z","links":{"resolver":"https://pith.science/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF","bundle":"https://pith.science/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/bundle.json","state":"https://pith.science/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YFCAIGMCUXW7IVYUWQK6FAXZBF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:YFCAIGMCUXW7IVYUWQK6FAXZBF","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":"dc9ba2501e053808cf757ec87a8a08037879b69d5673e6a8d1ca357f4716849e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-13T11:01:39Z","title_canon_sha256":"82588f98f71f98d8a2325a8d9624f0d949683d0204393beb59e67ecb371e0134"},"schema_version":"1.0","source":{"id":"1401.2785","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2785","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2785v1","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2785","created_at":"2026-05-18T02:47:40Z"},{"alias_kind":"pith_short_12","alias_value":"YFCAIGMCUXW7","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YFCAIGMCUXW7IVYU","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YFCAIGMC","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:b166d465b4a54d26fb685ec58b9b2e4c5cb10e0526cb7562242e18ee9af9b020","target":"graph","created_at":"2026-05-18T02:47:40Z","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 use multi-wavelength microlensing measurements of a sample of 10 image pairs from 8 lensed quasars to study the structure of their accretion disks. By using spectroscopy or narrow band photometry we have been able to remove contamination from the weakly microlensed broad emission lines, extinction and any uncertainties in the large-scale macro magnification of the lens model. We determine a maximum likelihood estimate for the exponent of the size versus wavelength scaling ($r_s\\propto \\lambda^p$ corresponding to a disk temperature profile of $T\\propto r^{-1/p}$) of $p=0.75^{+0.2}_{-0.2}$, a","authors_text":"A. M. Mosquera, C. S. Kochanek, E. Falco, E. Mediavilla, J. A. Mu\\~noz, J. Jim\\'enez-Vicente, V. Motta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-13T11:01:39Z","title":"The Average Size and Temperature Profile of Quasar Accretion Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2785","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":"sha256:4c7609a4e2b1ee776afaee25d37160e1a78db3c4d9b377b3441cff0b76f6e8df","target":"record","created_at":"2026-05-18T02:47:40Z","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":"dc9ba2501e053808cf757ec87a8a08037879b69d5673e6a8d1ca357f4716849e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-13T11:01:39Z","title_canon_sha256":"82588f98f71f98d8a2325a8d9624f0d949683d0204393beb59e67ecb371e0134"},"schema_version":"1.0","source":{"id":"1401.2785","kind":"arxiv","version":1}},"canonical_sha256":"c144041982a5edf45714b415e282f9095d0f0d134311398200224f9579979be0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c144041982a5edf45714b415e282f9095d0f0d134311398200224f9579979be0","first_computed_at":"2026-05-18T02:47:40.589803Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:40.589803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3rWjYOLtFVIMpQ0+/G+sd6nal9rApVMXAxYxTmKWSrte+AgCXfw5mVYzSp/Xgi8VOsTlNGTs5g3OofY9t022Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:40.590565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.2785","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c7609a4e2b1ee776afaee25d37160e1a78db3c4d9b377b3441cff0b76f6e8df","sha256:b166d465b4a54d26fb685ec58b9b2e4c5cb10e0526cb7562242e18ee9af9b020"],"state_sha256":"7debdf77443efdcbc2c5190d89e90b65fa7798f5c94dd0c952df86f7781e3c4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oVDZgaAXVVg9Xaumv5hKZ6N/zRCR8CJRTmVqgsEsngyEGeSKn6JXkA8w4ra58UtCRuQ8823UrgRfV/709UmuCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T02:35:14.505535Z","bundle_sha256":"cb0ab32fe000255a8245d58a4015f418a09feb63c662ffe59280c2f3361a4009"}}