{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:54KTRXZUDO3OWGNDBHUCGOG7OH","short_pith_number":"pith:54KTRXZU","canonical_record":{"source":{"id":"1608.03831","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-08-12T15:39:59Z","cross_cats_sorted":[],"title_canon_sha256":"4ae09ef98d9cacf96d1a789bac0d0d05acac56a5aea7a987865f8be07a76f454","abstract_canon_sha256":"77e4f040814136435d13e072c12e853c1e0caaa0871d2e652a0b65598f8a4c63"},"schema_version":"1.0"},"canonical_sha256":"ef1538df341bb6eb19a309e82338df71c2b49f2732c3969bbc633480c35a2023","source":{"kind":"arxiv","id":"1608.03831","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.03831","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"arxiv_version","alias_value":"1608.03831v1","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03831","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"pith_short_12","alias_value":"54KTRXZUDO3O","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"54KTRXZUDO3OWGND","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"54KTRXZU","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:54KTRXZUDO3OWGNDBHUCGOG7OH","target":"record","payload":{"canonical_record":{"source":{"id":"1608.03831","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-08-12T15:39:59Z","cross_cats_sorted":[],"title_canon_sha256":"4ae09ef98d9cacf96d1a789bac0d0d05acac56a5aea7a987865f8be07a76f454","abstract_canon_sha256":"77e4f040814136435d13e072c12e853c1e0caaa0871d2e652a0b65598f8a4c63"},"schema_version":"1.0"},"canonical_sha256":"ef1538df341bb6eb19a309e82338df71c2b49f2732c3969bbc633480c35a2023","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:22.496761Z","signature_b64":"1HCej+iADwWHU0o13OuUY7aZCS/5e1hkqQohrQkf+yb0chkgGk3F4j5jCt0zi2XBUE3EjrxTd3osTOFc4dC4CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef1538df341bb6eb19a309e82338df71c2b49f2732c3969bbc633480c35a2023","last_reissued_at":"2026-05-18T01:01:22.496135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:22.496135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.03831","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":"2026-05-18T01:01:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V9lE175ihhp422+tpBv068x7abTqutqJ01oEbsDoKOrzr3unCENAKY68d4oEyFhQtTkBAzQY8eKbv8Rn9dL0BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:22:24.259677Z"},"content_sha256":"9c121112a9e1f86576cd3662141d3de83a219a758768276f60004d67a72039d2","schema_version":"1.0","event_id":"sha256:9c121112a9e1f86576cd3662141d3de83a219a758768276f60004d67a72039d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:54KTRXZUDO3OWGNDBHUCGOG7OH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Size of the accretion disk in the gravitationally lensed quasar SDSS J1004+4112 from the statistics of microlensing magnifications","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Hanslmeier, A. Oscoz, C. Fian, E. Mediavilla, J. A. Mu\\~noz, J. Jim\\'enez-Vicente, M. Serra-Ricart","submitted_at":"2016-08-12T15:39:59Z","abstract_excerpt":"We present eight monitoring seasons of the four brightest images of the gravitational lens SDSS J1004+4112 observed between December 2003 and October 2010. Using measured time delays for the images A, B and C and the model predicted time delay for image D we have removed the intrinsic quasar variability, finding microlensing events of about 0.5 and 0.7 mag of amplitude in the images C and D. From the statistics of microlensing amplitudes in images A, C, and D, we have inferred the half-light radius (at {\\lambda} rest = 2407 {\\AA}) for the accretion disk using two different methods, $R_{1/2}=8."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03831","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":"2026-05-18T01:01:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yBrFlMhJyaJrtJ1cDW/TxjDQXq/QvMIQ8yfYa8A7k1u2K95LjlYCsC4pEwOKGJVu4hzIY9JXXs4FkcWEwmK1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:22:24.260454Z"},"content_sha256":"b2b595d764d8e0c31f0875a46c8b8a2dc99e898c5c9983cc071b0652a9084691","schema_version":"1.0","event_id":"sha256:b2b595d764d8e0c31f0875a46c8b8a2dc99e898c5c9983cc071b0652a9084691"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/bundle.json","state_url":"https://pith.science/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/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":"2026-05-30T14:22:24Z","links":{"resolver":"https://pith.science/pith/54KTRXZUDO3OWGNDBHUCGOG7OH","bundle":"https://pith.science/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/bundle.json","state":"https://pith.science/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/54KTRXZUDO3OWGNDBHUCGOG7OH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:54KTRXZUDO3OWGNDBHUCGOG7OH","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":"77e4f040814136435d13e072c12e853c1e0caaa0871d2e652a0b65598f8a4c63","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-08-12T15:39:59Z","title_canon_sha256":"4ae09ef98d9cacf96d1a789bac0d0d05acac56a5aea7a987865f8be07a76f454"},"schema_version":"1.0","source":{"id":"1608.03831","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.03831","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"arxiv_version","alias_value":"1608.03831v1","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.03831","created_at":"2026-05-18T01:01:22Z"},{"alias_kind":"pith_short_12","alias_value":"54KTRXZUDO3O","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"54KTRXZUDO3OWGND","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"54KTRXZU","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:b2b595d764d8e0c31f0875a46c8b8a2dc99e898c5c9983cc071b0652a9084691","target":"graph","created_at":"2026-05-18T01:01:22Z","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 present eight monitoring seasons of the four brightest images of the gravitational lens SDSS J1004+4112 observed between December 2003 and October 2010. Using measured time delays for the images A, B and C and the model predicted time delay for image D we have removed the intrinsic quasar variability, finding microlensing events of about 0.5 and 0.7 mag of amplitude in the images C and D. From the statistics of microlensing amplitudes in images A, C, and D, we have inferred the half-light radius (at {\\lambda} rest = 2407 {\\AA}) for the accretion disk using two different methods, $R_{1/2}=8.","authors_text":"A. Hanslmeier, A. Oscoz, C. Fian, E. Mediavilla, J. A. Mu\\~noz, J. Jim\\'enez-Vicente, M. Serra-Ricart","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-08-12T15:39:59Z","title":"Size of the accretion disk in the gravitationally lensed quasar SDSS J1004+4112 from the statistics of microlensing magnifications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.03831","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":"sha256:9c121112a9e1f86576cd3662141d3de83a219a758768276f60004d67a72039d2","target":"record","created_at":"2026-05-18T01:01:22Z","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":"77e4f040814136435d13e072c12e853c1e0caaa0871d2e652a0b65598f8a4c63","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-08-12T15:39:59Z","title_canon_sha256":"4ae09ef98d9cacf96d1a789bac0d0d05acac56a5aea7a987865f8be07a76f454"},"schema_version":"1.0","source":{"id":"1608.03831","kind":"arxiv","version":1}},"canonical_sha256":"ef1538df341bb6eb19a309e82338df71c2b49f2732c3969bbc633480c35a2023","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef1538df341bb6eb19a309e82338df71c2b49f2732c3969bbc633480c35a2023","first_computed_at":"2026-05-18T01:01:22.496135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:22.496135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1HCej+iADwWHU0o13OuUY7aZCS/5e1hkqQohrQkf+yb0chkgGk3F4j5jCt0zi2XBUE3EjrxTd3osTOFc4dC4CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:22.496761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.03831","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c121112a9e1f86576cd3662141d3de83a219a758768276f60004d67a72039d2","sha256:b2b595d764d8e0c31f0875a46c8b8a2dc99e898c5c9983cc071b0652a9084691"],"state_sha256":"4f61bed8fe088f7673c711a6b5656a9c838c7bcacb02d669704f72f2c2c53ac4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mZSe0ZupPgtmEU8B4i6GUu6roExXi+Kg+2kP0CrKygfvfR0eEaJOuBGATHJdtWO7IAYMlCUJFCfoz3EWkJfpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:22:24.264933Z","bundle_sha256":"c36f500950fc8e0ab23a7ac2298865080149cd8851660b4c766a6addf6c1f73f"}}