{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:TW3QVQKXRZEGFTWHVCTUIONYZI","short_pith_number":"pith:TW3QVQKX","canonical_record":{"source":{"id":"astro-ph/0703273","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-12T16:29:47Z","cross_cats_sorted":[],"title_canon_sha256":"40c81d906ae9d9a8a7181f4c8d711150d02c6df3bf717025d72fc17738ea7aaa","abstract_canon_sha256":"9ab80f45ec50bd15e431217fd45e668c4980e2389760cacbe87a21346d0e50a8"},"schema_version":"1.0"},"canonical_sha256":"9db70ac1578e4862cec7a8a74439b8ca12e9d994f9b71b28cb8be79384106010","source":{"kind":"arxiv","id":"astro-ph/0703273","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703273","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703273v1","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703273","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_12","alias_value":"TW3QVQKXRZEG","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_16","alias_value":"TW3QVQKXRZEGFTWH","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_8","alias_value":"TW3QVQKX","created_at":"2026-07-04T15:16:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:TW3QVQKXRZEGFTWHVCTUIONYZI","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0703273","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-12T16:29:47Z","cross_cats_sorted":[],"title_canon_sha256":"40c81d906ae9d9a8a7181f4c8d711150d02c6df3bf717025d72fc17738ea7aaa","abstract_canon_sha256":"9ab80f45ec50bd15e431217fd45e668c4980e2389760cacbe87a21346d0e50a8"},"schema_version":"1.0"},"canonical_sha256":"9db70ac1578e4862cec7a8a74439b8ca12e9d994f9b71b28cb8be79384106010","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:16:37.007632Z","signature_b64":"LBbm3nrMcLYlzmg+cSGO6zJbPB5ZkMIWpIjGrVCt/U9l6xb0Cj0shgPdwpbIXzh19sGrjTO/PTDQaPQl6Q5KCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9db70ac1578e4862cec7a8a74439b8ca12e9d994f9b71b28cb8be79384106010","last_reissued_at":"2026-07-04T15:16:37.007140Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:16:37.007140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0703273","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":"2026-07-04T15:16:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g9Ev0iiEty6DOHM/v2jO7hRoMgFvk/pdaISttErtvPmpuI9nFiuibHq2hThinz/83IdpDKyp3gCkqoqRERmqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T07:34:48.831914Z"},"content_sha256":"a8fb7675973990af0bd46520de959fc0a54db46c767fb6ab4ebeafae63d41886","schema_version":"1.0","event_id":"sha256:a8fb7675973990af0bd46520de959fc0a54db46c767fb6ab4ebeafae63d41886"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:TW3QVQKXRZEGFTWHVCTUIONYZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A survey of polarization in the JVAS/CLASS flat-spectrum radio source surveys: I. The data and catalogue production","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"I.W.A. Browne, Jodrell Bank Observatory), N. Jackson, P.N. Wilkinson (University of Manchester, R.A. Battye, S. Joshi, T.W.B. Muxlow","submitted_at":"2007-03-12T16:29:47Z","abstract_excerpt":"We have used the very large JVAS/CLASS 8.4-GHz surveys of flat-spectrum radio sources to obtain a large, uniformly observed and calibrated, sample of radio source polarizations. These are useful for many investigations of the properties of radio sources and the interstellar medium. We discuss comparisons with polarization measurements from this survey and from other large-scale surveys of polarization in flat-spectrum sources."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703273","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/astro-ph/0703273/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":"2026-07-04T15:16:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N/mndjzhp3njPuhD6iUjxXkY/FtqHv8AJz79i6SJRDohxvMxLV7rp7KpwQFfab5woOE94Eq6KIAyZmNpYBslAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T07:34:48.832803Z"},"content_sha256":"55c5878dc7fe4285c9d2c87ebe9c648cd2a693d18df47381bcee76b3fba7b9fc","schema_version":"1.0","event_id":"sha256:55c5878dc7fe4285c9d2c87ebe9c648cd2a693d18df47381bcee76b3fba7b9fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/bundle.json","state_url":"https://pith.science/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/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":"2026-08-17T07:34:48Z","links":{"resolver":"https://pith.science/pith/TW3QVQKXRZEGFTWHVCTUIONYZI","bundle":"https://pith.science/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/bundle.json","state":"https://pith.science/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TW3QVQKXRZEGFTWHVCTUIONYZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:TW3QVQKXRZEGFTWHVCTUIONYZI","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":"9ab80f45ec50bd15e431217fd45e668c4980e2389760cacbe87a21346d0e50a8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-12T16:29:47Z","title_canon_sha256":"40c81d906ae9d9a8a7181f4c8d711150d02c6df3bf717025d72fc17738ea7aaa"},"schema_version":"1.0","source":{"id":"astro-ph/0703273","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703273","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703273v1","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703273","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_12","alias_value":"TW3QVQKXRZEG","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_16","alias_value":"TW3QVQKXRZEGFTWH","created_at":"2026-07-04T15:16:37Z"},{"alias_kind":"pith_short_8","alias_value":"TW3QVQKX","created_at":"2026-07-04T15:16:37Z"}],"graph_snapshots":[{"event_id":"sha256:55c5878dc7fe4285c9d2c87ebe9c648cd2a693d18df47381bcee76b3fba7b9fc","target":"graph","created_at":"2026-07-04T15:16:37Z","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/astro-ph/0703273/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have used the very large JVAS/CLASS 8.4-GHz surveys of flat-spectrum radio sources to obtain a large, uniformly observed and calibrated, sample of radio source polarizations. These are useful for many investigations of the properties of radio sources and the interstellar medium. We discuss comparisons with polarization measurements from this survey and from other large-scale surveys of polarization in flat-spectrum sources.","authors_text":"I.W.A. Browne, Jodrell Bank Observatory), N. Jackson, P.N. Wilkinson (University of Manchester, R.A. Battye, S. Joshi, T.W.B. Muxlow","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-03-12T16:29:47Z","title":"A survey of polarization in the JVAS/CLASS flat-spectrum radio source surveys: I. The data and catalogue production"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703273","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:a8fb7675973990af0bd46520de959fc0a54db46c767fb6ab4ebeafae63d41886","target":"record","created_at":"2026-07-04T15:16:37Z","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":"9ab80f45ec50bd15e431217fd45e668c4980e2389760cacbe87a21346d0e50a8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-12T16:29:47Z","title_canon_sha256":"40c81d906ae9d9a8a7181f4c8d711150d02c6df3bf717025d72fc17738ea7aaa"},"schema_version":"1.0","source":{"id":"astro-ph/0703273","kind":"arxiv","version":1}},"canonical_sha256":"9db70ac1578e4862cec7a8a74439b8ca12e9d994f9b71b28cb8be79384106010","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9db70ac1578e4862cec7a8a74439b8ca12e9d994f9b71b28cb8be79384106010","first_computed_at":"2026-07-04T15:16:37.007140Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:16:37.007140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LBbm3nrMcLYlzmg+cSGO6zJbPB5ZkMIWpIjGrVCt/U9l6xb0Cj0shgPdwpbIXzh19sGrjTO/PTDQaPQl6Q5KCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:16:37.007632Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0703273","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8fb7675973990af0bd46520de959fc0a54db46c767fb6ab4ebeafae63d41886","sha256:55c5878dc7fe4285c9d2c87ebe9c648cd2a693d18df47381bcee76b3fba7b9fc"],"state_sha256":"8a39f958ef07c2baf48924a30fa1904da7733d90074bc19b6558cf2c5b278cb8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nN27KTEtmNyQmM+vnrjV1szHaRyF5NC186JkIu/yPzS7dSXD0ezcsuypLKI+E1qi6AGRx/lZt+BFsC6AqhRlBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T07:34:48.840276Z","bundle_sha256":"2bf516fbab7883b7a88d53251cd44c50111c55ec85f0eba4410566d0895f54fe"}}