{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2K3YVMBCSG2TRLQF3LZDIUSA42","short_pith_number":"pith:2K3YVMBC","canonical_record":{"source":{"id":"1507.01092","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-04T09:59:33Z","cross_cats_sorted":[],"title_canon_sha256":"3d3d955fe3216e870607d45f98730ba963e38cb912f4461102d5065fd63dde78","abstract_canon_sha256":"0bd2ab09e674dc4b1b6d56abcfdb95729e45014b8e99171d81de4876d7eae4d2"},"schema_version":"1.0"},"canonical_sha256":"d2b78ab02291b538ae05daf2345240e6bcba680375117c99c0c43eeef52eaa86","source":{"kind":"arxiv","id":"1507.01092","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01092","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01092v1","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01092","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"2K3YVMBCSG2T","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2K3YVMBCSG2TRLQF","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2K3YVMBC","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2K3YVMBCSG2TRLQF3LZDIUSA42","target":"record","payload":{"canonical_record":{"source":{"id":"1507.01092","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-04T09:59:33Z","cross_cats_sorted":[],"title_canon_sha256":"3d3d955fe3216e870607d45f98730ba963e38cb912f4461102d5065fd63dde78","abstract_canon_sha256":"0bd2ab09e674dc4b1b6d56abcfdb95729e45014b8e99171d81de4876d7eae4d2"},"schema_version":"1.0"},"canonical_sha256":"d2b78ab02291b538ae05daf2345240e6bcba680375117c99c0c43eeef52eaa86","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:45.951146Z","signature_b64":"rkBNOepM+yZVK3UkujfdcudqAOBAgU69CJ4CGQTOiEtkv3fMJAzjFVntv0mfU5Zk0Ec4D0XefUfr+1KDXXb2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2b78ab02291b538ae05daf2345240e6bcba680375117c99c0c43eeef52eaa86","last_reissued_at":"2026-05-18T01:20:45.950707Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:45.950707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.01092","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":"2026-05-18T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0ybEhfB94nf8b/hTsRxZJcJjQhjcN49EJ6aiEwSRucI4cRBTMfiwbMeBysfInIEcMoK0bRVt5Ck1slRUHGN/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:18:51.360043Z"},"content_sha256":"d7203c846e5906cad99efa32a52a5e46844f60a0b1eb62790344dac5231340bc","schema_version":"1.0","event_id":"sha256:d7203c846e5906cad99efa32a52a5e46844f60a0b1eb62790344dac5231340bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2K3YVMBCSG2TRLQF3LZDIUSA42","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microlensing constraint on the size of the gamma-ray emission region in blazar B0218+357","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrii Neronov, Ievgen Vovk","submitted_at":"2015-07-04T09:59:33Z","abstract_excerpt":"Context. Observations of the effect of microlensing in gravitationally lensed quasars could potentially be used to study the structure of the source on distance scales down to the size of the supermassive black hole powering the quasar activity.\n  Aims. We search for the microlensing effect in the gamma-ray band using the signal from a gravitationally lensed blazar B0218+357.\n  Methonds. We develop a method of deconvolution of contributions of two images of the source into the gamma-ray band flaring lightcurve. We use this method to study the evolution of the magnification factor ratio between"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01092","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":"2026-05-18T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eUxJS+hfDYmI0QLVxbbXCVOLF9w/grbRW4whR8mADEVJ2BxKzBMv7iy8bNfUiodyeDl96GzkWENEhO2ong+jDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:18:51.360969Z"},"content_sha256":"74ab02e64f4109161f830074b562c7c978927e344eb15546d4d9427c51017af0","schema_version":"1.0","event_id":"sha256:74ab02e64f4109161f830074b562c7c978927e344eb15546d4d9427c51017af0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/bundle.json","state_url":"https://pith.science/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/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":"2026-06-01T02:18:51Z","links":{"resolver":"https://pith.science/pith/2K3YVMBCSG2TRLQF3LZDIUSA42","bundle":"https://pith.science/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/bundle.json","state":"https://pith.science/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2K3YVMBCSG2TRLQF3LZDIUSA42/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2K3YVMBCSG2TRLQF3LZDIUSA42","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":"0bd2ab09e674dc4b1b6d56abcfdb95729e45014b8e99171d81de4876d7eae4d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-04T09:59:33Z","title_canon_sha256":"3d3d955fe3216e870607d45f98730ba963e38cb912f4461102d5065fd63dde78"},"schema_version":"1.0","source":{"id":"1507.01092","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01092","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01092v1","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01092","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"2K3YVMBCSG2T","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2K3YVMBCSG2TRLQF","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2K3YVMBC","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:74ab02e64f4109161f830074b562c7c978927e344eb15546d4d9427c51017af0","target":"graph","created_at":"2026-05-18T01:20:45Z","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":"Context. Observations of the effect of microlensing in gravitationally lensed quasars could potentially be used to study the structure of the source on distance scales down to the size of the supermassive black hole powering the quasar activity.\n  Aims. We search for the microlensing effect in the gamma-ray band using the signal from a gravitationally lensed blazar B0218+357.\n  Methonds. We develop a method of deconvolution of contributions of two images of the source into the gamma-ray band flaring lightcurve. We use this method to study the evolution of the magnification factor ratio between","authors_text":"Andrii Neronov, Ievgen Vovk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-04T09:59:33Z","title":"Microlensing constraint on the size of the gamma-ray emission region in blazar B0218+357"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01092","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:d7203c846e5906cad99efa32a52a5e46844f60a0b1eb62790344dac5231340bc","target":"record","created_at":"2026-05-18T01:20:45Z","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":"0bd2ab09e674dc4b1b6d56abcfdb95729e45014b8e99171d81de4876d7eae4d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-04T09:59:33Z","title_canon_sha256":"3d3d955fe3216e870607d45f98730ba963e38cb912f4461102d5065fd63dde78"},"schema_version":"1.0","source":{"id":"1507.01092","kind":"arxiv","version":1}},"canonical_sha256":"d2b78ab02291b538ae05daf2345240e6bcba680375117c99c0c43eeef52eaa86","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2b78ab02291b538ae05daf2345240e6bcba680375117c99c0c43eeef52eaa86","first_computed_at":"2026-05-18T01:20:45.950707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:45.950707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rkBNOepM+yZVK3UkujfdcudqAOBAgU69CJ4CGQTOiEtkv3fMJAzjFVntv0mfU5Zk0Ec4D0XefUfr+1KDXXb2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:45.951146Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.01092","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7203c846e5906cad99efa32a52a5e46844f60a0b1eb62790344dac5231340bc","sha256:74ab02e64f4109161f830074b562c7c978927e344eb15546d4d9427c51017af0"],"state_sha256":"7b3a86c7c3d8e719b393412d4e1c207215f46b0f6a2dc69f67f46936afe77fa3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PNC2OIJQR+FQvTlhGbWQf6s/auYQoS9rGglaO/YzefHsAWugWXSkgpwg4Zw+InHNdmS2QINTGNl0NwVOig3EDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T02:18:51.366174Z","bundle_sha256":"f50ac4a78c5c761a135e7b4c119e0f1049f9c768bd08881b4cb5ec6efb54a11e"}}