{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:2SPXFRIAWYD4QND3VKQBXDDUU3","short_pith_number":"pith:2SPXFRIA","canonical_record":{"source":{"id":"2607.19869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-22T07:54:57Z","cross_cats_sorted":[],"title_canon_sha256":"d8babb3c9ebc3ff84c59922a9e6f234bdbaf0914b64d251acd443e7116ba7fba","abstract_canon_sha256":"b86a829d9b945dfae7a14a5d6e30a5eb5a95dbd4c24c8dbfeb383342ee77e190"},"schema_version":"1.0"},"canonical_sha256":"d49f72c500b607c8347baaa01b8c74a6f77048d5cc6068e7c047c2049123e6d7","source":{"kind":"arxiv","id":"2607.19869","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19869","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19869v1","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19869","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_12","alias_value":"2SPXFRIAWYD4","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_16","alias_value":"2SPXFRIAWYD4QND3","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_8","alias_value":"2SPXFRIA","created_at":"2026-07-23T01:24:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:2SPXFRIAWYD4QND3VKQBXDDUU3","target":"record","payload":{"canonical_record":{"source":{"id":"2607.19869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-22T07:54:57Z","cross_cats_sorted":[],"title_canon_sha256":"d8babb3c9ebc3ff84c59922a9e6f234bdbaf0914b64d251acd443e7116ba7fba","abstract_canon_sha256":"b86a829d9b945dfae7a14a5d6e30a5eb5a95dbd4c24c8dbfeb383342ee77e190"},"schema_version":"1.0"},"canonical_sha256":"d49f72c500b607c8347baaa01b8c74a6f77048d5cc6068e7c047c2049123e6d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-23T01:24:04.875862Z","signature_b64":"K++1ynrkV8aiTIL2388XEP/ydvy0Y71dKKjt8SvQuPhtHCPSBe+ip5geAAkeekmXkwY5Upr0NlMf4S+MIOctCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d49f72c500b607c8347baaa01b8c74a6f77048d5cc6068e7c047c2049123e6d7","last_reissued_at":"2026-07-23T01:24:04.875044Z","signature_status":"signed_v1","first_computed_at":"2026-07-23T01:24:04.875044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.19869","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":"2026-07-23T01:24:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GygZyLKt/gTErB9gYqsPI7Zahrfe00Hjp6B2NS8PrdEFcV/rC2C2BMDCpEUQbVQkLJzF27b6uX7k4b/ob1XQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:11:05.921375Z"},"content_sha256":"5039e7ffdc2640aabd1415c191bc3c2a3eb1fa35e9c558a505cf7bd717969ca4","schema_version":"1.0","event_id":"sha256:5039e7ffdc2640aabd1415c191bc3c2a3eb1fa35e9c558a505cf7bd717969ca4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:2SPXFRIAWYD4QND3VKQBXDDUU3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Peculiar Behavior of Optical Polarization in Blazar 1ES 1959+650: Role of Jet Magnetic Field and Geometry","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. C. Gupta, A. Singh, A. Tolamatti, K. K. Singh, K. K. Yadav","submitted_at":"2026-07-22T07:54:57Z","abstract_excerpt":"Measurements of high degree of optical polarization from blazars provide a strong evidence for the optically thin synchrotron radiation from the relativistic leptons in the jet. This in turn characterizes the presence of a partially ordered magnetic field in the emission region. However, the topology of magnetic field and acceleration of electrons to ultrarelativistic energies within the blazar jet are poorly understood. In this work, we investigate the decade long optical light curve of the well-known blazar 1ES 1959+650 to probe the role of jet magnetic field in the peculiar behavior of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19869","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.19869/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-23T01:24:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IZvXr4hb2yAY2iB76/W4Ag2MCWQBQABxB2MbQWdDVCyOqLqnYjysv+YJlHhYqam3Lb3CUNgMLuEtaUvMfnxpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:11:05.921938Z"},"content_sha256":"1d56399450caee2f379786a3aa2707ad469d915a8861e8c333a9c7e0b19b88e2","schema_version":"1.0","event_id":"sha256:1d56399450caee2f379786a3aa2707ad469d915a8861e8c333a9c7e0b19b88e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/bundle.json","state_url":"https://pith.science/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/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":"2026-08-03T18:11:05Z","links":{"resolver":"https://pith.science/pith/2SPXFRIAWYD4QND3VKQBXDDUU3","bundle":"https://pith.science/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/bundle.json","state":"https://pith.science/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2SPXFRIAWYD4QND3VKQBXDDUU3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2SPXFRIAWYD4QND3VKQBXDDUU3","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":"b86a829d9b945dfae7a14a5d6e30a5eb5a95dbd4c24c8dbfeb383342ee77e190","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-22T07:54:57Z","title_canon_sha256":"d8babb3c9ebc3ff84c59922a9e6f234bdbaf0914b64d251acd443e7116ba7fba"},"schema_version":"1.0","source":{"id":"2607.19869","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19869","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19869v1","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19869","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_12","alias_value":"2SPXFRIAWYD4","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_16","alias_value":"2SPXFRIAWYD4QND3","created_at":"2026-07-23T01:24:04Z"},{"alias_kind":"pith_short_8","alias_value":"2SPXFRIA","created_at":"2026-07-23T01:24:04Z"}],"graph_snapshots":[{"event_id":"sha256:1d56399450caee2f379786a3aa2707ad469d915a8861e8c333a9c7e0b19b88e2","target":"graph","created_at":"2026-07-23T01:24:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.19869/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measurements of high degree of optical polarization from blazars provide a strong evidence for the optically thin synchrotron radiation from the relativistic leptons in the jet. This in turn characterizes the presence of a partially ordered magnetic field in the emission region. However, the topology of magnetic field and acceleration of electrons to ultrarelativistic energies within the blazar jet are poorly understood. In this work, we investigate the decade long optical light curve of the well-known blazar 1ES 1959+650 to probe the role of jet magnetic field in the peculiar behavior of the ","authors_text":"A. C. Gupta, A. Singh, A. Tolamatti, K. K. Singh, K. K. Yadav","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-22T07:54:57Z","title":"Peculiar Behavior of Optical Polarization in Blazar 1ES 1959+650: Role of Jet Magnetic Field and Geometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19869","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":"sha256:5039e7ffdc2640aabd1415c191bc3c2a3eb1fa35e9c558a505cf7bd717969ca4","target":"record","created_at":"2026-07-23T01:24:04Z","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":"b86a829d9b945dfae7a14a5d6e30a5eb5a95dbd4c24c8dbfeb383342ee77e190","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-07-22T07:54:57Z","title_canon_sha256":"d8babb3c9ebc3ff84c59922a9e6f234bdbaf0914b64d251acd443e7116ba7fba"},"schema_version":"1.0","source":{"id":"2607.19869","kind":"arxiv","version":1}},"canonical_sha256":"d49f72c500b607c8347baaa01b8c74a6f77048d5cc6068e7c047c2049123e6d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d49f72c500b607c8347baaa01b8c74a6f77048d5cc6068e7c047c2049123e6d7","first_computed_at":"2026-07-23T01:24:04.875044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-23T01:24:04.875044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K++1ynrkV8aiTIL2388XEP/ydvy0Y71dKKjt8SvQuPhtHCPSBe+ip5geAAkeekmXkwY5Upr0NlMf4S+MIOctCg==","signature_status":"signed_v1","signed_at":"2026-07-23T01:24:04.875862Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.19869","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5039e7ffdc2640aabd1415c191bc3c2a3eb1fa35e9c558a505cf7bd717969ca4","sha256:1d56399450caee2f379786a3aa2707ad469d915a8861e8c333a9c7e0b19b88e2"],"state_sha256":"e9552ce1a2d747ea8d53c8989155a3a77effa98986aeeae9fcf75df5f09c1416"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aRZrHoqQHTUiBM4Q8rGUbzL7QylYOGIhsCzs+MvQsFo5uxqOsW/hcDaDEiUe//ZDLeYezkrqq+Xr7lM7DAooCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:11:05.926623Z","bundle_sha256":"df6fa9f51da9bb64081bfcc7046ef10bcb2eff0a14a7c94decdb06d21c4a980d"}}