{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:DY3IZYQZ2NI3FYLEVZCTXDEBUJ","short_pith_number":"pith:DY3IZYQZ","canonical_record":{"source":{"id":"1402.6192","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-25T15:05:09Z","cross_cats_sorted":[],"title_canon_sha256":"4a4730814c8d1a993eb7ea0acac1f30339971296cd49b301d765e2a5fdb3852f","abstract_canon_sha256":"a3020d5af3c443c6f8858754f6a4dbb2f893b61b98140b4a31a434bf4383ce1b"},"schema_version":"1.0"},"canonical_sha256":"1e368ce219d351b2e164ae453b8c81a2582ca19f7e78f680d2c5101ddda28eaf","source":{"kind":"arxiv","id":"1402.6192","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.6192","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"arxiv_version","alias_value":"1402.6192v1","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.6192","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"pith_short_12","alias_value":"DY3IZYQZ2NI3","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DY3IZYQZ2NI3FYLE","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DY3IZYQZ","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:DY3IZYQZ2NI3FYLEVZCTXDEBUJ","target":"record","payload":{"canonical_record":{"source":{"id":"1402.6192","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-25T15:05:09Z","cross_cats_sorted":[],"title_canon_sha256":"4a4730814c8d1a993eb7ea0acac1f30339971296cd49b301d765e2a5fdb3852f","abstract_canon_sha256":"a3020d5af3c443c6f8858754f6a4dbb2f893b61b98140b4a31a434bf4383ce1b"},"schema_version":"1.0"},"canonical_sha256":"1e368ce219d351b2e164ae453b8c81a2582ca19f7e78f680d2c5101ddda28eaf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:28.469331Z","signature_b64":"YqjRU8hiroeXXh4aP3FKakSACStTlQO6lqAwEU6bP9hChfPUjFEODMV8EPop9g4z509GSKhfWGy+Ky5QCEfVDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e368ce219d351b2e164ae453b8c81a2582ca19f7e78f680d2c5101ddda28eaf","last_reissued_at":"2026-05-18T01:44:28.468839Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:28.468839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.6192","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":"2026-05-18T01:44:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZKvyb7q0m8BhVG5YuHHh4wy7Vat4hhWsIj5qTUoJ+9sDqVDBPvDBZfGVbpDMg1635Hk1/MMexUD+yp17rjOMBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:16:02.095163Z"},"content_sha256":"9ca19c940a90b732627de5cf862f79cbdcb0de4137872292993451bb932268e4","schema_version":"1.0","event_id":"sha256:9ca19c940a90b732627de5cf862f79cbdcb0de4137872292993451bb932268e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:DY3IZYQZ2NI3FYLEVZCTXDEBUJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extremely high polarization in 2010 outburst of blazar 3C 454.3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Hajimu Yasuda, Hidehiko Nakaya, Hiroshi Akitaya, Hiroyuki Tanaka, Hisashi Miyamoto, Kiyoshi Sakimoto, Koji S. Kawabata, Mahito Sasada, Makoto Uemura, Masaru Kino, Masayuki Yamanaka, Michitoshi Yoshida, Osamu Nagae, Ryosuke Itoh, Shuji Sato, Takashi Ohsugi, Tomoyuki Komatsu, Yasushi Fukazawa, Yuki Ikejiri","submitted_at":"2014-02-25T15:05:09Z","abstract_excerpt":"The gamma-ray-detected blazar 3C 454.3 exhibits dramatic flux and polarization variations in the optical and near-infrared bands. In December 2010, the object emitted a very bright outburst. We monitored it for approximately four years (including the 2010 outburst) by optical and near-infrared photopolarimetry. During the 2010 outburst, the object emitted two rapid, redder brightenings, at which the polarization degrees (PDs) in both bands increased significantly and the bands exhibited a frequency-dependent polarization. The observed frequency-dependent polarization leads us to propose that t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.6192","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":"2026-05-18T01:44:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f8Rv9xhTjzwlnV5BXU8+qXh8dX1VtWGeBHjmd6UsY6tTObp8WoBUXeeUkJIOIfN0m513wxm29LeKDoC2nld8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:16:02.095881Z"},"content_sha256":"2141740b7e1a027ead96a58d3774b287b0074c2168c620769b29fa13794a5300","schema_version":"1.0","event_id":"sha256:2141740b7e1a027ead96a58d3774b287b0074c2168c620769b29fa13794a5300"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/bundle.json","state_url":"https://pith.science/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/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":"2026-05-30T15:16:02Z","links":{"resolver":"https://pith.science/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ","bundle":"https://pith.science/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/bundle.json","state":"https://pith.science/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DY3IZYQZ2NI3FYLEVZCTXDEBUJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DY3IZYQZ2NI3FYLEVZCTXDEBUJ","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":"a3020d5af3c443c6f8858754f6a4dbb2f893b61b98140b4a31a434bf4383ce1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-25T15:05:09Z","title_canon_sha256":"4a4730814c8d1a993eb7ea0acac1f30339971296cd49b301d765e2a5fdb3852f"},"schema_version":"1.0","source":{"id":"1402.6192","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.6192","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"arxiv_version","alias_value":"1402.6192v1","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.6192","created_at":"2026-05-18T01:44:28Z"},{"alias_kind":"pith_short_12","alias_value":"DY3IZYQZ2NI3","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DY3IZYQZ2NI3FYLE","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DY3IZYQZ","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:2141740b7e1a027ead96a58d3774b287b0074c2168c620769b29fa13794a5300","target":"graph","created_at":"2026-05-18T01:44:28Z","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 gamma-ray-detected blazar 3C 454.3 exhibits dramatic flux and polarization variations in the optical and near-infrared bands. In December 2010, the object emitted a very bright outburst. We monitored it for approximately four years (including the 2010 outburst) by optical and near-infrared photopolarimetry. During the 2010 outburst, the object emitted two rapid, redder brightenings, at which the polarization degrees (PDs) in both bands increased significantly and the bands exhibited a frequency-dependent polarization. The observed frequency-dependent polarization leads us to propose that t","authors_text":"Hajimu Yasuda, Hidehiko Nakaya, Hiroshi Akitaya, Hiroyuki Tanaka, Hisashi Miyamoto, Kiyoshi Sakimoto, Koji S. Kawabata, Mahito Sasada, Makoto Uemura, Masaru Kino, Masayuki Yamanaka, Michitoshi Yoshida, Osamu Nagae, Ryosuke Itoh, Shuji Sato, Takashi Ohsugi, Tomoyuki Komatsu, Yasushi Fukazawa, Yuki Ikejiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-25T15:05:09Z","title":"Extremely high polarization in 2010 outburst of blazar 3C 454.3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.6192","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":"sha256:9ca19c940a90b732627de5cf862f79cbdcb0de4137872292993451bb932268e4","target":"record","created_at":"2026-05-18T01:44:28Z","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":"a3020d5af3c443c6f8858754f6a4dbb2f893b61b98140b4a31a434bf4383ce1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-25T15:05:09Z","title_canon_sha256":"4a4730814c8d1a993eb7ea0acac1f30339971296cd49b301d765e2a5fdb3852f"},"schema_version":"1.0","source":{"id":"1402.6192","kind":"arxiv","version":1}},"canonical_sha256":"1e368ce219d351b2e164ae453b8c81a2582ca19f7e78f680d2c5101ddda28eaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e368ce219d351b2e164ae453b8c81a2582ca19f7e78f680d2c5101ddda28eaf","first_computed_at":"2026-05-18T01:44:28.468839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:28.468839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YqjRU8hiroeXXh4aP3FKakSACStTlQO6lqAwEU6bP9hChfPUjFEODMV8EPop9g4z509GSKhfWGy+Ky5QCEfVDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:28.469331Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.6192","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ca19c940a90b732627de5cf862f79cbdcb0de4137872292993451bb932268e4","sha256:2141740b7e1a027ead96a58d3774b287b0074c2168c620769b29fa13794a5300"],"state_sha256":"acd74ad9a26906922c03db680f61b194a5132a663e88887c1152d20e72dda654"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LYV0hXMVKQZz3ctBZKLXFZdjNcO36KJXFmHuY/xEyGydCKeLPw6HoGa0xU+pIELGCTHvWEn4WVupZUaEawt3BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:16:02.099354Z","bundle_sha256":"04888c9fd79b2f02f5a17a94076e840b1bd3531db4c420fc1f09e6a7f5177420"}}