{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CI6IUDQVQFFW57TGQE4VBQFZMR","short_pith_number":"pith:CI6IUDQV","canonical_record":{"source":{"id":"1508.05394","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-21T20:07:27Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"59599fd931ebbd7f00a5dfdf9539923885fbd5f45e67f89f02fcd106464cfa35","abstract_canon_sha256":"087d6efde3f570041c17225df660c37bf98406c98d3b4e7b39400b41d5e2f297"},"schema_version":"1.0"},"canonical_sha256":"123c8a0e15814b6efe66813950c0b96459296b24cf01bcd5865592081be0fff3","source":{"kind":"arxiv","id":"1508.05394","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.05394","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.05394v2","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.05394","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"CI6IUDQVQFFW","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CI6IUDQVQFFW57TG","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CI6IUDQV","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CI6IUDQVQFFW57TGQE4VBQFZMR","target":"record","payload":{"canonical_record":{"source":{"id":"1508.05394","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-21T20:07:27Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"59599fd931ebbd7f00a5dfdf9539923885fbd5f45e67f89f02fcd106464cfa35","abstract_canon_sha256":"087d6efde3f570041c17225df660c37bf98406c98d3b4e7b39400b41d5e2f297"},"schema_version":"1.0"},"canonical_sha256":"123c8a0e15814b6efe66813950c0b96459296b24cf01bcd5865592081be0fff3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:44.967418Z","signature_b64":"SMBbChIFgYbtEalosFleBcO+0Qr36gucMHf7vG3/N+syggNEPhuEosaD1uKhCbCouAJFIkgsw9u5ASZYBBEEDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"123c8a0e15814b6efe66813950c0b96459296b24cf01bcd5865592081be0fff3","last_reissued_at":"2026-05-18T01:29:44.966751Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:44.966751Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.05394","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sZRvBEcO4yFWrEkt4HTC30cKZhP5J9qWn5doKPz4+YsZSQ0A6onuF6yqOEN1zAeJcOl0gzLOfDew/w7HhJsoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:26:24.062362Z"},"content_sha256":"47057fc352df302e9814b664498d571b11a100854b101a3f30e9ba5afd216e3b","schema_version":"1.0","event_id":"sha256:47057fc352df302e9814b664498d571b11a100854b101a3f30e9ba5afd216e3b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CI6IUDQVQFFW57TGQE4VBQFZMR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence for two spatially separated UV continuum emitting regions in the Cloverleaf broad absorption line quasar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"D. Hutsem\\'ekers, D. Sluse, L. Braibant, P. Riaud, T. Anguita","submitted_at":"2015-08-21T20:07:27Z","abstract_excerpt":"Testing the standard Shakura-Sunyaev model of accretion is a challenging task because the central region of quasars where accretion takes place is unresolved with telescopes. The analysis of microlensing in gravitationally lensed quasars is one of the few techniques that can test this model, yielding to the measurement of the size and of temperature profile of the accretion disc. We present spectroscopic observations of the gravitationally lensed broad absorption line quasar H1413+117, which reveal partial microlensing of the continuum emission that appears to originate from two separated regi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.05394","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":""},"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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w39AGnhmgHOW9rKKLhaznzLneofZIzmMLhY1m834vyLpzYf7xeGDxcKU/zhbTPoytg59SPoIwsjcKYnvS+FaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:26:24.063045Z"},"content_sha256":"dbbd6d539888c7b8ef32522db8003dd8186948fd741249353a49f5cbac8d3383","schema_version":"1.0","event_id":"sha256:dbbd6d539888c7b8ef32522db8003dd8186948fd741249353a49f5cbac8d3383"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/bundle.json","state_url":"https://pith.science/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/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":"2026-05-30T02:26:24Z","links":{"resolver":"https://pith.science/pith/CI6IUDQVQFFW57TGQE4VBQFZMR","bundle":"https://pith.science/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/bundle.json","state":"https://pith.science/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CI6IUDQVQFFW57TGQE4VBQFZMR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CI6IUDQVQFFW57TGQE4VBQFZMR","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":"087d6efde3f570041c17225df660c37bf98406c98d3b4e7b39400b41d5e2f297","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-21T20:07:27Z","title_canon_sha256":"59599fd931ebbd7f00a5dfdf9539923885fbd5f45e67f89f02fcd106464cfa35"},"schema_version":"1.0","source":{"id":"1508.05394","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.05394","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.05394v2","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.05394","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"CI6IUDQVQFFW","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CI6IUDQVQFFW57TG","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CI6IUDQV","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:dbbd6d539888c7b8ef32522db8003dd8186948fd741249353a49f5cbac8d3383","target":"graph","created_at":"2026-05-18T01:29:44Z","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":"Testing the standard Shakura-Sunyaev model of accretion is a challenging task because the central region of quasars where accretion takes place is unresolved with telescopes. The analysis of microlensing in gravitationally lensed quasars is one of the few techniques that can test this model, yielding to the measurement of the size and of temperature profile of the accretion disc. We present spectroscopic observations of the gravitationally lensed broad absorption line quasar H1413+117, which reveal partial microlensing of the continuum emission that appears to originate from two separated regi","authors_text":"D. Hutsem\\'ekers, D. Sluse, L. Braibant, P. Riaud, T. Anguita","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-21T20:07:27Z","title":"Evidence for two spatially separated UV continuum emitting regions in the Cloverleaf broad absorption line quasar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.05394","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":"sha256:47057fc352df302e9814b664498d571b11a100854b101a3f30e9ba5afd216e3b","target":"record","created_at":"2026-05-18T01:29:44Z","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":"087d6efde3f570041c17225df660c37bf98406c98d3b4e7b39400b41d5e2f297","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-21T20:07:27Z","title_canon_sha256":"59599fd931ebbd7f00a5dfdf9539923885fbd5f45e67f89f02fcd106464cfa35"},"schema_version":"1.0","source":{"id":"1508.05394","kind":"arxiv","version":2}},"canonical_sha256":"123c8a0e15814b6efe66813950c0b96459296b24cf01bcd5865592081be0fff3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"123c8a0e15814b6efe66813950c0b96459296b24cf01bcd5865592081be0fff3","first_computed_at":"2026-05-18T01:29:44.966751Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:44.966751Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SMBbChIFgYbtEalosFleBcO+0Qr36gucMHf7vG3/N+syggNEPhuEosaD1uKhCbCouAJFIkgsw9u5ASZYBBEEDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:44.967418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.05394","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47057fc352df302e9814b664498d571b11a100854b101a3f30e9ba5afd216e3b","sha256:dbbd6d539888c7b8ef32522db8003dd8186948fd741249353a49f5cbac8d3383"],"state_sha256":"8f89f4e1145246bf7b1343d5177e9ef3f863a6965e230909e3360bb2d95f3346"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m3bYXSaN2ZRISpFFc3XXf1GYo67rowTTk91meIUsF4EQC97UGQcsd+KSusidgc8XfeoQ8nqmZpEdgdmsf/xOAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:26:24.066707Z","bundle_sha256":"17c84cc5df0d04c45c46fbdbae2a72e61c672e880baaa52f854a88822323013d"}}