{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3KR2Q4XJPC4D4CTZBJ4XKZHW3R","short_pith_number":"pith:3KR2Q4XJ","canonical_record":{"source":{"id":"1810.03620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-08T18:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"79456badd91c6379220d5445e1b0f8706655c383ee4e7931db12a4da28cb2859","abstract_canon_sha256":"158d43aab3ef06f1b716e7865cceb9ef2e3f9736ceb524f1026a1054841a342f"},"schema_version":"1.0"},"canonical_sha256":"daa3a872e978b83e0a790a797564f6dc4b88aaa986d67fb77e23fafee209ef0e","source":{"kind":"arxiv","id":"1810.03620","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03620","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03620v1","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03620","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"pith_short_12","alias_value":"3KR2Q4XJPC4D","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3KR2Q4XJPC4D4CTZ","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3KR2Q4XJ","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3KR2Q4XJPC4D4CTZBJ4XKZHW3R","target":"record","payload":{"canonical_record":{"source":{"id":"1810.03620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-08T18:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"79456badd91c6379220d5445e1b0f8706655c383ee4e7931db12a4da28cb2859","abstract_canon_sha256":"158d43aab3ef06f1b716e7865cceb9ef2e3f9736ceb524f1026a1054841a342f"},"schema_version":"1.0"},"canonical_sha256":"daa3a872e978b83e0a790a797564f6dc4b88aaa986d67fb77e23fafee209ef0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:44.842284Z","signature_b64":"znBnwQSsGiDEWIwOVWqdLDGFDLeZ52mc0vebRM/RGlSh2XDyxWCuZloaNVXJ15h5cwfFD6oql3NU7QJB+i3kDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"daa3a872e978b83e0a790a797564f6dc4b88aaa986d67fb77e23fafee209ef0e","last_reissued_at":"2026-05-18T00:03:44.841795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:44.841795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.03620","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":"2026-05-18T00:03:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C8EP5AStC9cULHs+dbQH48NSPSahQ3Etd6ybQX+Htelk1MS6rSBG3sF7F9APVd5oHwNpsJWZmxQWd+8JBYkRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:58:54.588496Z"},"content_sha256":"5632a887949e31af8dbacd9e5578ab16e6bc64da0e95f1bf0f9d9b64276d5a88","schema_version":"1.0","event_id":"sha256:5632a887949e31af8dbacd9e5578ab16e6bc64da0e95f1bf0f9d9b64276d5a88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3KR2Q4XJPC4D4CTZBJ4XKZHW3R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From the NVSS RM Catalogue to Future Polarisation Surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alex S. Hill, Aritra Basu, Carl Heiles, Jennifer West, Jeroen Stil, S. A. Mao, S. K. Betti, Yik Ki Ma","submitted_at":"2018-10-08T18:00:07Z","abstract_excerpt":"With rotation measure (RM) towards 37,543 polarised sources, the Taylor et al. (2009) RM catalogue has been widely exploited in studies of the foreground magneto-ionic media. However, due to limitations imposed by observations in survey mode in the narrowband era, the listed RM values are inevitably affected by various systematic effects. With new Karl G. Jansky Very Large Array (VLA) broadband spectro-polarimetric observations at L-band, we set off to observationally examine the robustness of the Taylor catalogue. This would facilitate combinations and comparisons of it with results from curr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03620","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":""},"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":"2026-05-18T00:03:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KlpiFjpQun1asrHYG1GF4ojYGtkOwWE0BkxgzSqx3oZUVYX4HVW0FnihHM/Ba2DrHgKqQ47ngJ6cLkHlQiUbDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:58:54.589130Z"},"content_sha256":"9d4d0db0c34407d4bfceaf192019f2a98ebe2649c118af6119851315de902b05","schema_version":"1.0","event_id":"sha256:9d4d0db0c34407d4bfceaf192019f2a98ebe2649c118af6119851315de902b05"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/bundle.json","state_url":"https://pith.science/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/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":"2026-05-30T10:58:54Z","links":{"resolver":"https://pith.science/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R","bundle":"https://pith.science/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/bundle.json","state":"https://pith.science/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KR2Q4XJPC4D4CTZBJ4XKZHW3R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3KR2Q4XJPC4D4CTZBJ4XKZHW3R","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":"158d43aab3ef06f1b716e7865cceb9ef2e3f9736ceb524f1026a1054841a342f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-08T18:00:07Z","title_canon_sha256":"79456badd91c6379220d5445e1b0f8706655c383ee4e7931db12a4da28cb2859"},"schema_version":"1.0","source":{"id":"1810.03620","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03620","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03620v1","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03620","created_at":"2026-05-18T00:03:44Z"},{"alias_kind":"pith_short_12","alias_value":"3KR2Q4XJPC4D","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3KR2Q4XJPC4D4CTZ","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3KR2Q4XJ","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:9d4d0db0c34407d4bfceaf192019f2a98ebe2649c118af6119851315de902b05","target":"graph","created_at":"2026-05-18T00:03:44Z","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"},"paper":{"abstract_excerpt":"With rotation measure (RM) towards 37,543 polarised sources, the Taylor et al. (2009) RM catalogue has been widely exploited in studies of the foreground magneto-ionic media. However, due to limitations imposed by observations in survey mode in the narrowband era, the listed RM values are inevitably affected by various systematic effects. With new Karl G. Jansky Very Large Array (VLA) broadband spectro-polarimetric observations at L-band, we set off to observationally examine the robustness of the Taylor catalogue. This would facilitate combinations and comparisons of it with results from curr","authors_text":"Alex S. Hill, Aritra Basu, Carl Heiles, Jennifer West, Jeroen Stil, S. A. Mao, S. K. Betti, Yik Ki Ma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-08T18:00:07Z","title":"From the NVSS RM Catalogue to Future Polarisation Surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03620","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":"sha256:5632a887949e31af8dbacd9e5578ab16e6bc64da0e95f1bf0f9d9b64276d5a88","target":"record","created_at":"2026-05-18T00:03:44Z","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":"158d43aab3ef06f1b716e7865cceb9ef2e3f9736ceb524f1026a1054841a342f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-08T18:00:07Z","title_canon_sha256":"79456badd91c6379220d5445e1b0f8706655c383ee4e7931db12a4da28cb2859"},"schema_version":"1.0","source":{"id":"1810.03620","kind":"arxiv","version":1}},"canonical_sha256":"daa3a872e978b83e0a790a797564f6dc4b88aaa986d67fb77e23fafee209ef0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daa3a872e978b83e0a790a797564f6dc4b88aaa986d67fb77e23fafee209ef0e","first_computed_at":"2026-05-18T00:03:44.841795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:44.841795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"znBnwQSsGiDEWIwOVWqdLDGFDLeZ52mc0vebRM/RGlSh2XDyxWCuZloaNVXJ15h5cwfFD6oql3NU7QJB+i3kDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:44.842284Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.03620","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5632a887949e31af8dbacd9e5578ab16e6bc64da0e95f1bf0f9d9b64276d5a88","sha256:9d4d0db0c34407d4bfceaf192019f2a98ebe2649c118af6119851315de902b05"],"state_sha256":"e6e96fa2193caf17d8c235198ea15acecdb390ec88b5b285538595f63f45f3b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u13J5Ab+YZEjj8JTl95GpB94dEGJni9im20dL2EkK/ifAwhFrWSU9hsqtfowl9pb8aJjF4O3Zd9WQ9QS+qhBBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T10:58:54.592203Z","bundle_sha256":"dd7fdb045d7ebca9222f8c9a9242aaddf11d93f9fd77fea048d15a97cd1347d1"}}