{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:PYR2HU5WG2EEODLKITWTRBFSA4","short_pith_number":"pith:PYR2HU5W","canonical_record":{"source":{"id":"2308.05794","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-10T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"a8877fce928ddaf39510cb239864952ced2df925f45e92b6e500a13fdf378fc4","abstract_canon_sha256":"22434ac4331e898931cc7d408afa894f4550553deeb0412b748e59d7e7a7cba9"},"schema_version":"1.0"},"canonical_sha256":"7e23a3d3b63688470d6a44ed3884b20717ee2fd44c1ffad69bf0e3f6f8d172be","source":{"kind":"arxiv","id":"2308.05794","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.05794","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"arxiv_version","alias_value":"2308.05794v1","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.05794","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_12","alias_value":"PYR2HU5WG2EE","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_16","alias_value":"PYR2HU5WG2EEODLK","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_8","alias_value":"PYR2HU5W","created_at":"2026-07-05T06:40:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:PYR2HU5WG2EEODLKITWTRBFSA4","target":"record","payload":{"canonical_record":{"source":{"id":"2308.05794","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-10T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"a8877fce928ddaf39510cb239864952ced2df925f45e92b6e500a13fdf378fc4","abstract_canon_sha256":"22434ac4331e898931cc7d408afa894f4550553deeb0412b748e59d7e7a7cba9"},"schema_version":"1.0"},"canonical_sha256":"7e23a3d3b63688470d6a44ed3884b20717ee2fd44c1ffad69bf0e3f6f8d172be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:40:05.641422Z","signature_b64":"+ZmthY7fQXxmYwXYQRrLqKzVHDYX83V7Hf/nJ19lUYgE8hBgtDJwypCF2KC0n4wLGvD796hSXcMCCrFSG6uuDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e23a3d3b63688470d6a44ed3884b20717ee2fd44c1ffad69bf0e3f6f8d172be","last_reissued_at":"2026-07-05T06:40:05.641000Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:40:05.641000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.05794","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":"2026-07-05T06:40:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4ho6NulMzAc9jKiumMCgebBrn4WWxwtL5HvBfeBHj35+xwuDZOPArIrxMVDdEemuEurOz9LknidFXpVWo8tBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:47:45.655496Z"},"content_sha256":"14f4d75efa234c999f5ec81b60f1d348a563f01731d84f790b5c1bdd2c915148","schema_version":"1.0","event_id":"sha256:14f4d75efa234c999f5ec81b60f1d348a563f01731d84f790b5c1bdd2c915148"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:PYR2HU5WG2EEODLKITWTRBFSA4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hunting for the candidates of misclassified sources in LSP BL Lacs using Machine learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Qingwen Wu, Shi-Ju Kang, Yong-Gang Zheng","submitted_at":"2023-08-10T18:00:00Z","abstract_excerpt":"An equivalent width (EW) based classification may cause the erroneous judgement to the flat spectrum radio quasars (FSRQs) and BL Lacerate objects (BL Lac) due to the diluting the line features by dramatic variations in the jet continuum flux. To help address the issue, the present paper explore the possible intrinsic classification on the bias of a random forest supervised machine learning algorithm. In order to do so, we compile a sample of 1680 Fermi blazars that have both gamma-rays and radio-frequencies data available from the 4LAC-DR2 catalog, which includes 1352 training and validation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.05794","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/2308.05794/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":"2026-07-05T06:40:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ttAS/SeMi1OvSm94gVxP0xbNmqnOWV7IXbfiqVN3HZcW0fWSz1q9zG9L6gBhGE+raWIsgat6O3Go2JkgCcDfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:47:45.656057Z"},"content_sha256":"aea6907bfa670726e0a93c58b3a7e8bb6ede3a641a12d7e50d7fa14915e7621c","schema_version":"1.0","event_id":"sha256:aea6907bfa670726e0a93c58b3a7e8bb6ede3a641a12d7e50d7fa14915e7621c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PYR2HU5WG2EEODLKITWTRBFSA4/bundle.json","state_url":"https://pith.science/pith/PYR2HU5WG2EEODLKITWTRBFSA4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PYR2HU5WG2EEODLKITWTRBFSA4/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":"2026-08-06T10:47:45Z","links":{"resolver":"https://pith.science/pith/PYR2HU5WG2EEODLKITWTRBFSA4","bundle":"https://pith.science/pith/PYR2HU5WG2EEODLKITWTRBFSA4/bundle.json","state":"https://pith.science/pith/PYR2HU5WG2EEODLKITWTRBFSA4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PYR2HU5WG2EEODLKITWTRBFSA4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:PYR2HU5WG2EEODLKITWTRBFSA4","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":"22434ac4331e898931cc7d408afa894f4550553deeb0412b748e59d7e7a7cba9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-10T18:00:00Z","title_canon_sha256":"a8877fce928ddaf39510cb239864952ced2df925f45e92b6e500a13fdf378fc4"},"schema_version":"1.0","source":{"id":"2308.05794","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.05794","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"arxiv_version","alias_value":"2308.05794v1","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.05794","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_12","alias_value":"PYR2HU5WG2EE","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_16","alias_value":"PYR2HU5WG2EEODLK","created_at":"2026-07-05T06:40:05Z"},{"alias_kind":"pith_short_8","alias_value":"PYR2HU5W","created_at":"2026-07-05T06:40:05Z"}],"graph_snapshots":[{"event_id":"sha256:aea6907bfa670726e0a93c58b3a7e8bb6ede3a641a12d7e50d7fa14915e7621c","target":"graph","created_at":"2026-07-05T06:40:05Z","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/2308.05794/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An equivalent width (EW) based classification may cause the erroneous judgement to the flat spectrum radio quasars (FSRQs) and BL Lacerate objects (BL Lac) due to the diluting the line features by dramatic variations in the jet continuum flux. To help address the issue, the present paper explore the possible intrinsic classification on the bias of a random forest supervised machine learning algorithm. In order to do so, we compile a sample of 1680 Fermi blazars that have both gamma-rays and radio-frequencies data available from the 4LAC-DR2 catalog, which includes 1352 training and validation ","authors_text":"Qingwen Wu, Shi-Ju Kang, Yong-Gang Zheng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-10T18:00:00Z","title":"Hunting for the candidates of misclassified sources in LSP BL Lacs using Machine learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.05794","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":"sha256:14f4d75efa234c999f5ec81b60f1d348a563f01731d84f790b5c1bdd2c915148","target":"record","created_at":"2026-07-05T06:40:05Z","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":"22434ac4331e898931cc7d408afa894f4550553deeb0412b748e59d7e7a7cba9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-10T18:00:00Z","title_canon_sha256":"a8877fce928ddaf39510cb239864952ced2df925f45e92b6e500a13fdf378fc4"},"schema_version":"1.0","source":{"id":"2308.05794","kind":"arxiv","version":1}},"canonical_sha256":"7e23a3d3b63688470d6a44ed3884b20717ee2fd44c1ffad69bf0e3f6f8d172be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e23a3d3b63688470d6a44ed3884b20717ee2fd44c1ffad69bf0e3f6f8d172be","first_computed_at":"2026-07-05T06:40:05.641000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:40:05.641000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+ZmthY7fQXxmYwXYQRrLqKzVHDYX83V7Hf/nJ19lUYgE8hBgtDJwypCF2KC0n4wLGvD796hSXcMCCrFSG6uuDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:40:05.641422Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.05794","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14f4d75efa234c999f5ec81b60f1d348a563f01731d84f790b5c1bdd2c915148","sha256:aea6907bfa670726e0a93c58b3a7e8bb6ede3a641a12d7e50d7fa14915e7621c"],"state_sha256":"32640301c2727af8c435e8f216b3af99417ee7b08c2597a0b9e68e52f9b108c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TR8IOJT38R3MeZlqnMe4DIKpy7VVvtgGikKzHdY5M8GJGMHhZdatrj0Sj+9IyUHReNWgsZ1gsGdGBdFdL9/nAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T10:47:45.660707Z","bundle_sha256":"e71ab194eee3237023a9f8435dff159a86bccf5e13df77304c8442fd4e28db5a"}}