{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:HXHKNZCKLR245TI4XMPRWRQ3D3","short_pith_number":"pith:HXHKNZCK","canonical_record":{"source":{"id":"2412.00988","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-01T22:28:35Z","cross_cats_sorted":[],"title_canon_sha256":"69296b312ed3e83da4d5edd67e24870503f4ca7287abfa1321daf93e9f259124","abstract_canon_sha256":"63fdf2c53724a5b0e50fe597214e3cb4beb4ac6b92744684d09e69927fa811e5"},"schema_version":"1.0"},"canonical_sha256":"3dcea6e44a5c75cecd1cbb1f1b461b1eff86cb4ec3ebeeb6dcc89c05470280de","source":{"kind":"arxiv","id":"2412.00988","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.00988","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"2412.00988v1","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.00988","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"HXHKNZCKLR24","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_16","alias_value":"HXHKNZCKLR245TI4","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_8","alias_value":"HXHKNZCK","created_at":"2026-07-05T09:58:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:HXHKNZCKLR245TI4XMPRWRQ3D3","target":"record","payload":{"canonical_record":{"source":{"id":"2412.00988","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-01T22:28:35Z","cross_cats_sorted":[],"title_canon_sha256":"69296b312ed3e83da4d5edd67e24870503f4ca7287abfa1321daf93e9f259124","abstract_canon_sha256":"63fdf2c53724a5b0e50fe597214e3cb4beb4ac6b92744684d09e69927fa811e5"},"schema_version":"1.0"},"canonical_sha256":"3dcea6e44a5c75cecd1cbb1f1b461b1eff86cb4ec3ebeeb6dcc89c05470280de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:58:13.298077Z","signature_b64":"kFqhpvAozzv/ZCu7Vjm+ZG2TVbnlXSS4deRja4AcLbfRUxxR4DuqXlNmbxkKTlBAlVCDKrglMPKau+MFSD4vAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3dcea6e44a5c75cecd1cbb1f1b461b1eff86cb4ec3ebeeb6dcc89c05470280de","last_reissued_at":"2026-07-05T09:58:13.297555Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:58:13.297555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.00988","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":"2026-07-05T09:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SnXRMBrq1Ti5xuK5x8b5eK7Vyf17PWzIPNTqKh5xBpijltAWD2TVUdhWnk5jsKaBjA2JsFNQFaxh6ATv36vZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T03:39:44.724951Z"},"content_sha256":"84b00783ef92eed3d64585ccccfb408a385ef9fb06fd684a49c905cb23585195","schema_version":"1.0","event_id":"sha256:84b00783ef92eed3d64585ccccfb408a385ef9fb06fd684a49c905cb23585195"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:HXHKNZCKLR245TI4XMPRWRQ3D3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LOFAR Deep Fields: Probing the sub-mJy regime of polarized extragalactic sources in ELAIS-N1. II. Analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Bonafede, C. Horellou, E. Carretti, I. Prandoni, J. Conway, M. Thomasson, S. Piras, S.P. O'Sullivan, T.W. Shimwell, V. Vacca","submitted_at":"2024-12-01T22:28:35Z","abstract_excerpt":"Deep polarization surveys at low radio frequencies are key to cosmic magnetism studies: Larger catalogs of polarized extragalactic sources and increased precision on Faraday rotation measures (RMs) make it possible to probe the magneto-ionic medium along the lines of sight of the sources and to construct denser RM grids. In a first paper, we presented a search for polarized sources in deep observations of the 25 square degree area of the European Large Area ISO Survey North 1 (ELAIS-N1) field with the LOw Frequency ARray (LOFAR) in the range 114.9 to 177.4 MHz. In this paper, we investigate th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.00988","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/2412.00988/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":"2026-07-05T09:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3jHeOvClzThlcgBCZv/6RsHlUMO579jcCzhvdoZXTjlt/uV9L2L+HT2E9nNDDoSSKb1gqmt/UZY5HnQpDkBOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T03:39:44.725513Z"},"content_sha256":"b8798b77865ff6b85c4408215198ff2fb8a5b18e3f0e1d45a14721e05daeabc8","schema_version":"1.0","event_id":"sha256:b8798b77865ff6b85c4408215198ff2fb8a5b18e3f0e1d45a14721e05daeabc8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/bundle.json","state_url":"https://pith.science/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/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":"2026-08-15T03:39:44Z","links":{"resolver":"https://pith.science/pith/HXHKNZCKLR245TI4XMPRWRQ3D3","bundle":"https://pith.science/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/bundle.json","state":"https://pith.science/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HXHKNZCKLR245TI4XMPRWRQ3D3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:HXHKNZCKLR245TI4XMPRWRQ3D3","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":"63fdf2c53724a5b0e50fe597214e3cb4beb4ac6b92744684d09e69927fa811e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-01T22:28:35Z","title_canon_sha256":"69296b312ed3e83da4d5edd67e24870503f4ca7287abfa1321daf93e9f259124"},"schema_version":"1.0","source":{"id":"2412.00988","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.00988","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"2412.00988v1","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.00988","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"HXHKNZCKLR24","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_16","alias_value":"HXHKNZCKLR245TI4","created_at":"2026-07-05T09:58:13Z"},{"alias_kind":"pith_short_8","alias_value":"HXHKNZCK","created_at":"2026-07-05T09:58:13Z"}],"graph_snapshots":[{"event_id":"sha256:b8798b77865ff6b85c4408215198ff2fb8a5b18e3f0e1d45a14721e05daeabc8","target":"graph","created_at":"2026-07-05T09:58:13Z","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/2412.00988/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Deep polarization surveys at low radio frequencies are key to cosmic magnetism studies: Larger catalogs of polarized extragalactic sources and increased precision on Faraday rotation measures (RMs) make it possible to probe the magneto-ionic medium along the lines of sight of the sources and to construct denser RM grids. In a first paper, we presented a search for polarized sources in deep observations of the 25 square degree area of the European Large Area ISO Survey North 1 (ELAIS-N1) field with the LOw Frequency ARray (LOFAR) in the range 114.9 to 177.4 MHz. In this paper, we investigate th","authors_text":"A. Bonafede, C. Horellou, E. Carretti, I. Prandoni, J. Conway, M. Thomasson, S. Piras, S.P. O'Sullivan, T.W. Shimwell, V. Vacca","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-01T22:28:35Z","title":"LOFAR Deep Fields: Probing the sub-mJy regime of polarized extragalactic sources in ELAIS-N1. II. Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.00988","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":"sha256:84b00783ef92eed3d64585ccccfb408a385ef9fb06fd684a49c905cb23585195","target":"record","created_at":"2026-07-05T09:58:13Z","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":"63fdf2c53724a5b0e50fe597214e3cb4beb4ac6b92744684d09e69927fa811e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-01T22:28:35Z","title_canon_sha256":"69296b312ed3e83da4d5edd67e24870503f4ca7287abfa1321daf93e9f259124"},"schema_version":"1.0","source":{"id":"2412.00988","kind":"arxiv","version":1}},"canonical_sha256":"3dcea6e44a5c75cecd1cbb1f1b461b1eff86cb4ec3ebeeb6dcc89c05470280de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3dcea6e44a5c75cecd1cbb1f1b461b1eff86cb4ec3ebeeb6dcc89c05470280de","first_computed_at":"2026-07-05T09:58:13.297555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:58:13.297555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kFqhpvAozzv/ZCu7Vjm+ZG2TVbnlXSS4deRja4AcLbfRUxxR4DuqXlNmbxkKTlBAlVCDKrglMPKau+MFSD4vAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:58:13.298077Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.00988","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84b00783ef92eed3d64585ccccfb408a385ef9fb06fd684a49c905cb23585195","sha256:b8798b77865ff6b85c4408215198ff2fb8a5b18e3f0e1d45a14721e05daeabc8"],"state_sha256":"244ae874762ea499d7c5903cc41529e7162efb7ff6d0379ea94b9385762aa68a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Td6QhxsfDSA/N6NlPtUAf+txJSA8TteC+Lz4tx7Wy6MItEsEQz09XCsdwMqRrg13YTfsUi1bm8HkO5XJ+AqNBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T03:39:44.746219Z","bundle_sha256":"f02166b92b717d201c8e7077a35f4a31979d11d99d8003a381ae27c2667f9d32"}}