{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:TWJ5GCQO63HXH45YAZPAK4MSUP","short_pith_number":"pith:TWJ5GCQO","canonical_record":{"source":{"id":"2504.09303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-04-12T18:24:09Z","cross_cats_sorted":[],"title_canon_sha256":"1b1293d97d2b0808a0b911e6e25b77efdfc986f86cccf73fa85f2f8ac7bb4324","abstract_canon_sha256":"c93c11b7d1b9752003fcef33b2911b5a498a4a0012c0c699deb79105cde6a675"},"schema_version":"1.0"},"canonical_sha256":"9d93d30a0ef6cf73f3b8065e057192a3c3d189181a11a55acb933122d6439cf1","source":{"kind":"arxiv","id":"2504.09303","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.09303","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"arxiv_version","alias_value":"2504.09303v1","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.09303","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_12","alias_value":"TWJ5GCQO63HX","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_16","alias_value":"TWJ5GCQO63HXH45Y","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_8","alias_value":"TWJ5GCQO","created_at":"2026-07-05T10:48:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:TWJ5GCQO63HXH45YAZPAK4MSUP","target":"record","payload":{"canonical_record":{"source":{"id":"2504.09303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-04-12T18:24:09Z","cross_cats_sorted":[],"title_canon_sha256":"1b1293d97d2b0808a0b911e6e25b77efdfc986f86cccf73fa85f2f8ac7bb4324","abstract_canon_sha256":"c93c11b7d1b9752003fcef33b2911b5a498a4a0012c0c699deb79105cde6a675"},"schema_version":"1.0"},"canonical_sha256":"9d93d30a0ef6cf73f3b8065e057192a3c3d189181a11a55acb933122d6439cf1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:48:35.006214Z","signature_b64":"F1/aGzDcKIXjAe3mRfoAzcLuX24UghYqNZl3fmLfiSv341ju+n5r1WlMzpXIQePnamGr27xDnMKdhPbv4REIBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d93d30a0ef6cf73f3b8065e057192a3c3d189181a11a55acb933122d6439cf1","last_reissued_at":"2026-07-05T10:48:35.005658Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:48:35.005658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.09303","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":"2026-07-05T10:48:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b/Xr+dkYv8GSA9faheKw+mewJwbTsHwCihCVH8l5ZDhdOsj3/quchXoXp0/xZ6U4cFasT9VMSu/XUYf9r2DuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:30:42.361203Z"},"content_sha256":"0b5941b04d7f8d4de50b849dd5c5e6a43216f39edc147713e248daf76b891eb9","schema_version":"1.0","event_id":"sha256:0b5941b04d7f8d4de50b849dd5c5e6a43216f39edc147713e248daf76b891eb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:TWJ5GCQO63HXH45YAZPAK4MSUP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radio AGN selection in LoTSS DR2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Mingo, D. J. B. Smith, G. G\\\"urkan, H. J. A. R\\\"ottgering, J. C. S. Pierce, K. J. Duncan, M. A. Horton, M. J. Hardcastle, Y. Gong","submitted_at":"2025-04-12T18:24:09Z","abstract_excerpt":"The wide-area component of the LOFAR Two-Metre Sky Survey (LoTSS) is currently the largest radio survey ever carried out, and a large fraction of the 4.5 million radio sources it contains have been optically identified with galaxies or quasars with spectroscopic or photometric redshifts. Identification of radio-luminous AGN from this LoTSS source catalogue is not only important from the point of view of understanding the accretion history of the universe, but also enables a wide range of other science. However, at present the vast majority of the optical identifications lack spectroscopic info"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.09303","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/2504.09303/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":"2026-07-05T10:48:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qqb4zyuxoXvLPLIksEOcmj4WdariK5hxF0MwzuQc015IM2IZaxk1iH8lbbDaNy5jQFNAdYo3b9loqtiVyoZyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:30:42.361695Z"},"content_sha256":"6e5cbc87a1b23dbe231754fd669d6be9e7745c1ee68b441879539fd976350050","schema_version":"1.0","event_id":"sha256:6e5cbc87a1b23dbe231754fd669d6be9e7745c1ee68b441879539fd976350050"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/bundle.json","state_url":"https://pith.science/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/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":"2026-08-04T01:30:42Z","links":{"resolver":"https://pith.science/pith/TWJ5GCQO63HXH45YAZPAK4MSUP","bundle":"https://pith.science/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/bundle.json","state":"https://pith.science/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TWJ5GCQO63HXH45YAZPAK4MSUP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:TWJ5GCQO63HXH45YAZPAK4MSUP","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":"c93c11b7d1b9752003fcef33b2911b5a498a4a0012c0c699deb79105cde6a675","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-04-12T18:24:09Z","title_canon_sha256":"1b1293d97d2b0808a0b911e6e25b77efdfc986f86cccf73fa85f2f8ac7bb4324"},"schema_version":"1.0","source":{"id":"2504.09303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.09303","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"arxiv_version","alias_value":"2504.09303v1","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.09303","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_12","alias_value":"TWJ5GCQO63HX","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_16","alias_value":"TWJ5GCQO63HXH45Y","created_at":"2026-07-05T10:48:35Z"},{"alias_kind":"pith_short_8","alias_value":"TWJ5GCQO","created_at":"2026-07-05T10:48:35Z"}],"graph_snapshots":[{"event_id":"sha256:6e5cbc87a1b23dbe231754fd669d6be9e7745c1ee68b441879539fd976350050","target":"graph","created_at":"2026-07-05T10:48:35Z","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/2504.09303/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The wide-area component of the LOFAR Two-Metre Sky Survey (LoTSS) is currently the largest radio survey ever carried out, and a large fraction of the 4.5 million radio sources it contains have been optically identified with galaxies or quasars with spectroscopic or photometric redshifts. Identification of radio-luminous AGN from this LoTSS source catalogue is not only important from the point of view of understanding the accretion history of the universe, but also enables a wide range of other science. However, at present the vast majority of the optical identifications lack spectroscopic info","authors_text":"B. Mingo, D. J. B. Smith, G. G\\\"urkan, H. J. A. R\\\"ottgering, J. C. S. Pierce, K. J. Duncan, M. A. Horton, M. J. Hardcastle, Y. Gong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-04-12T18:24:09Z","title":"Radio AGN selection in LoTSS DR2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.09303","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":"sha256:0b5941b04d7f8d4de50b849dd5c5e6a43216f39edc147713e248daf76b891eb9","target":"record","created_at":"2026-07-05T10:48:35Z","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":"c93c11b7d1b9752003fcef33b2911b5a498a4a0012c0c699deb79105cde6a675","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-04-12T18:24:09Z","title_canon_sha256":"1b1293d97d2b0808a0b911e6e25b77efdfc986f86cccf73fa85f2f8ac7bb4324"},"schema_version":"1.0","source":{"id":"2504.09303","kind":"arxiv","version":1}},"canonical_sha256":"9d93d30a0ef6cf73f3b8065e057192a3c3d189181a11a55acb933122d6439cf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d93d30a0ef6cf73f3b8065e057192a3c3d189181a11a55acb933122d6439cf1","first_computed_at":"2026-07-05T10:48:35.005658Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:48:35.005658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F1/aGzDcKIXjAe3mRfoAzcLuX24UghYqNZl3fmLfiSv341ju+n5r1WlMzpXIQePnamGr27xDnMKdhPbv4REIBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:48:35.006214Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.09303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b5941b04d7f8d4de50b849dd5c5e6a43216f39edc147713e248daf76b891eb9","sha256:6e5cbc87a1b23dbe231754fd669d6be9e7745c1ee68b441879539fd976350050"],"state_sha256":"5745adfa274dec82fcd7b07927c9d7b4697b19f2bde69465eb49b26642eef1f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N4I5nQaTS14slQiUPvRCF888SsZ6nblYi3FTHn6GwgdO+ILpHE6uS7X4cpse+ODYajgeOFtHPMD2DlXvAVQtDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T01:30:42.365369Z","bundle_sha256":"e0d5208a544793db2303a3d803c711194c7ca4f4995b3053fbd3ecbc63a139c3"}}