{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:WSX4XICEJDKNGLKUHIXSKI7IIZ","short_pith_number":"pith:WSX4XICE","canonical_record":{"source":{"id":"1610.04313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-14T02:26:27Z","cross_cats_sorted":[],"title_canon_sha256":"4cd5ff629b0702b4f61a3cffb562e5522d9aa770285ee593990a29dd6cb30185","abstract_canon_sha256":"fb1ce6fbd80b609cffe7e928dafd90e002e09269afa91fcdee081ae35eea8dda"},"schema_version":"1.0"},"canonical_sha256":"b4afcba04448d4d32d543a2f2523e846756246f9864086cd05e7da37f751faee","source":{"kind":"arxiv","id":"1610.04313","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04313","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04313v1","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04313","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"pith_short_12","alias_value":"WSX4XICEJDKN","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WSX4XICEJDKNGLKU","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WSX4XICE","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:WSX4XICEJDKNGLKUHIXSKI7IIZ","target":"record","payload":{"canonical_record":{"source":{"id":"1610.04313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-14T02:26:27Z","cross_cats_sorted":[],"title_canon_sha256":"4cd5ff629b0702b4f61a3cffb562e5522d9aa770285ee593990a29dd6cb30185","abstract_canon_sha256":"fb1ce6fbd80b609cffe7e928dafd90e002e09269afa91fcdee081ae35eea8dda"},"schema_version":"1.0"},"canonical_sha256":"b4afcba04448d4d32d543a2f2523e846756246f9864086cd05e7da37f751faee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:07.124188Z","signature_b64":"N/DdfnHgbM/ALuy2ALJNlQVQvDYLNZeMGrvYjPUAbNryrEUNdDZRrGyWrwYT9xGm+v92emvSA4KWPr8jcLhNCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4afcba04448d4d32d543a2f2523e846756246f9864086cd05e7da37f751faee","last_reissued_at":"2026-05-18T00:55:07.123576Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:07.123576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.04313","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":"2026-05-18T00:55:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l4ifmHOfa/wvdysnW0sOaacrE9A8sx/MeQPfICG8ixD8a6eDWngCu+UfCuMl6EFcPUZ/dCO6fuucmhgQOgiUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:43:44.896041Z"},"content_sha256":"193c607f302ed9cde4d6a3a43b8b8f3df3e668b405a250f9106456b783510a8d","schema_version":"1.0","event_id":"sha256:193c607f302ed9cde4d6a3a43b8b8f3df3e668b405a250f9106456b783510a8d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:WSX4XICEJDKNGLKUHIXSKI7IIZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Systematic Study of Gamma-ray bright Blazars with Optical Polarization and Gamma-ray Variability","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Frank. K. Schinzel, Grzegorz M. Madejski, Hiroshi Akitaya, Katsutoshi Takaki, Kensei Shiki, Koji S. Kawabata, Koji Takata, Krzysztof Nalewajko, Mahito Sasada, Makoto Uemura, Masayuki Yamanaka, Michitoshi Yoshida, Miho Kawabata, Ryosuke Itoh, Takahiro Ui, Takashi Ohsugi, Tatsuya Nakaoka, Yasushi Fukazawa, Yasuyuki T. Tanaka, Yuka Kanda, Yuki Moritani","submitted_at":"2016-10-14T02:26:27Z","abstract_excerpt":"Blazars are highly variable active galactic nuclei which emit radiation at all wavelengths from radio to gamma-rays. Polarized radiation from blazars is one key piece of evidence for synchrotron radiation at low energies and it also varies dramatically. The polarization of blazars is of interest for understanding the origin, confinement, and propagation of jets. However, even though numerous measurements have been performed, the mechanisms behind jet creation, composition and variability are still debated. We performed simultaneous gamma-ray and optical photopolarimetry observations of 45 blaz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04313","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":"2026-05-18T00:55:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O4Q+Yl/79O7fzK2uglKsAnfMoYO/5hdVJfUbDeamo77g3dCsDrwJT1S5nYvTxMn3i1bHJD8OFrbuG8DXyRhNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:43:44.896789Z"},"content_sha256":"3930d55a3ae416d5cb51569d08112bac256b9c6b53dc41bf80b27d2ea58c33bc","schema_version":"1.0","event_id":"sha256:3930d55a3ae416d5cb51569d08112bac256b9c6b53dc41bf80b27d2ea58c33bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/bundle.json","state_url":"https://pith.science/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/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":"2026-05-29T21:43:44Z","links":{"resolver":"https://pith.science/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ","bundle":"https://pith.science/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/bundle.json","state":"https://pith.science/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WSX4XICEJDKNGLKUHIXSKI7IIZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WSX4XICEJDKNGLKUHIXSKI7IIZ","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":"fb1ce6fbd80b609cffe7e928dafd90e002e09269afa91fcdee081ae35eea8dda","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-14T02:26:27Z","title_canon_sha256":"4cd5ff629b0702b4f61a3cffb562e5522d9aa770285ee593990a29dd6cb30185"},"schema_version":"1.0","source":{"id":"1610.04313","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04313","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04313v1","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04313","created_at":"2026-05-18T00:55:07Z"},{"alias_kind":"pith_short_12","alias_value":"WSX4XICEJDKN","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WSX4XICEJDKNGLKU","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WSX4XICE","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:3930d55a3ae416d5cb51569d08112bac256b9c6b53dc41bf80b27d2ea58c33bc","target":"graph","created_at":"2026-05-18T00:55:07Z","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":"Blazars are highly variable active galactic nuclei which emit radiation at all wavelengths from radio to gamma-rays. Polarized radiation from blazars is one key piece of evidence for synchrotron radiation at low energies and it also varies dramatically. The polarization of blazars is of interest for understanding the origin, confinement, and propagation of jets. However, even though numerous measurements have been performed, the mechanisms behind jet creation, composition and variability are still debated. We performed simultaneous gamma-ray and optical photopolarimetry observations of 45 blaz","authors_text":"Frank. K. Schinzel, Grzegorz M. Madejski, Hiroshi Akitaya, Katsutoshi Takaki, Kensei Shiki, Koji S. Kawabata, Koji Takata, Krzysztof Nalewajko, Mahito Sasada, Makoto Uemura, Masayuki Yamanaka, Michitoshi Yoshida, Miho Kawabata, Ryosuke Itoh, Takahiro Ui, Takashi Ohsugi, Tatsuya Nakaoka, Yasushi Fukazawa, Yasuyuki T. Tanaka, Yuka Kanda, Yuki Moritani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-14T02:26:27Z","title":"Systematic Study of Gamma-ray bright Blazars with Optical Polarization and Gamma-ray Variability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04313","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":"sha256:193c607f302ed9cde4d6a3a43b8b8f3df3e668b405a250f9106456b783510a8d","target":"record","created_at":"2026-05-18T00:55:07Z","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":"fb1ce6fbd80b609cffe7e928dafd90e002e09269afa91fcdee081ae35eea8dda","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-14T02:26:27Z","title_canon_sha256":"4cd5ff629b0702b4f61a3cffb562e5522d9aa770285ee593990a29dd6cb30185"},"schema_version":"1.0","source":{"id":"1610.04313","kind":"arxiv","version":1}},"canonical_sha256":"b4afcba04448d4d32d543a2f2523e846756246f9864086cd05e7da37f751faee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4afcba04448d4d32d543a2f2523e846756246f9864086cd05e7da37f751faee","first_computed_at":"2026-05-18T00:55:07.123576Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:07.123576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N/DdfnHgbM/ALuy2ALJNlQVQvDYLNZeMGrvYjPUAbNryrEUNdDZRrGyWrwYT9xGm+v92emvSA4KWPr8jcLhNCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:07.124188Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.04313","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:193c607f302ed9cde4d6a3a43b8b8f3df3e668b405a250f9106456b783510a8d","sha256:3930d55a3ae416d5cb51569d08112bac256b9c6b53dc41bf80b27d2ea58c33bc"],"state_sha256":"f88b3347149db5b1f07b87c61a9b1baf2493d8d5f9c4d9996072de894417372d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aHY6ZzbziG7sPQ3RjgudopDCrSqu2WBZay41FdCL4gKeEXrSG3bMJ5KXuMjc2aD1Ucjfl+NbQ/EkPHDNZnGwCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T21:43:44.900220Z","bundle_sha256":"23962ee145653dce19e2dd100d4715d8052addfe15d8d8a503ece2382c89996f"}}