{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:RCDOXLGLEEFUIGBFFMXEOKSMR2","short_pith_number":"pith:RCDOXLGL","canonical_record":{"source":{"id":"astro-ph/0402142","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-02-06T08:49:43Z","cross_cats_sorted":[],"title_canon_sha256":"a54893f5f0ddd97b0ed47745eeff753817d3a142cf945d989c5031103b8bcca3","abstract_canon_sha256":"bc6e7baa3da1a9badfcc3b3ffee55150f16907c364b47623ad238af18c61aeb8"},"schema_version":"1.0"},"canonical_sha256":"8886ebaccb210b4418252b2e472a4c8ea74ac6aa6a257412d15236f4f6b58723","source":{"kind":"arxiv","id":"astro-ph/0402142","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0402142","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0402142v1","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0402142","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"RCDOXLGLEEFU","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_16","alias_value":"RCDOXLGLEEFUIGBF","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_8","alias_value":"RCDOXLGL","created_at":"2026-07-04T16:42:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:RCDOXLGLEEFUIGBFFMXEOKSMR2","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0402142","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-02-06T08:49:43Z","cross_cats_sorted":[],"title_canon_sha256":"a54893f5f0ddd97b0ed47745eeff753817d3a142cf945d989c5031103b8bcca3","abstract_canon_sha256":"bc6e7baa3da1a9badfcc3b3ffee55150f16907c364b47623ad238af18c61aeb8"},"schema_version":"1.0"},"canonical_sha256":"8886ebaccb210b4418252b2e472a4c8ea74ac6aa6a257412d15236f4f6b58723","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:42:58.971141Z","signature_b64":"ZWJeIXWw2rYoGcsWw+/3BENlgJYniwk06wb0mVbTXx86SlgCq0ylGONJoRLDE9mwKQSWgjyTc1PtN8xnm6IkCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8886ebaccb210b4418252b2e472a4c8ea74ac6aa6a257412d15236f4f6b58723","last_reissued_at":"2026-07-04T16:42:58.970702Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:42:58.970702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0402142","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":"2026-07-04T16:42:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0xBGBQMrn4Nu1VrDvXNXgXvOe7nhAco53LJNszC8UQHWbmHla8wNFKsSFb5eDfMHBXsQagZl3WW+9cXpTC4GCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T16:34:08.714837Z"},"content_sha256":"e3d92e93d9422a1166b538c5255d023826890e38f84bd3b6132a4d7103927a06","schema_version":"1.0","event_id":"sha256:e3d92e93d9422a1166b538c5255d023826890e38f84bd3b6132a4d7103927a06"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:RCDOXLGLEEFUIGBFFMXEOKSMR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Motion and Properties of Nuclear Radio Components in Seyfert Galaxies Seen with VLBI","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.L. Roy, A.S. Wilson, A. Witzel, E.J.M. Colbert, E. Middelberg, H. Falcke, K.J. Fricke, N.M. Nagar, R.P. Norris, T.P. Krichbaum","submitted_at":"2004-02-06T08:49:43Z","abstract_excerpt":"We report EVN, MERLIN and VLBA observations at 18 cm, 6 cm and 3.6 cm of the Seyfert galaxies NGC 7674, NGC 5506, NGC 2110 and Mrk 1210 to study their structure and proper motions on pc scales and to add some constraints on the many possible causes of the radio-quietness of Seyferts. The component configurations in NGC 7674 and NGC 2110 are simple, linear structures, whereas the configurations in NGC 5506 and Mrk 1210 have multiple components with no clear axis of symmetry. We suggest that NGC 7674 is a low-luminosity compact symmetric object. Comparing the images at different epochs, we find "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0402142","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/0402142/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":"2026-07-04T16:42:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2NFkgmZh/sAt9XZ4kR/0dx2fcx0w/DC2UXFKtc4P7GBmC+vrjpwae8A9ACG5404HbWA5DR1UDk9WSgpzOtXLBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T16:34:08.715337Z"},"content_sha256":"9382dfe6970cc7b058ebfb7eee9c22ea895039aee6081b80048c7c8b39e3472f","schema_version":"1.0","event_id":"sha256:9382dfe6970cc7b058ebfb7eee9c22ea895039aee6081b80048c7c8b39e3472f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/bundle.json","state_url":"https://pith.science/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/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":"2026-08-09T16:34:08Z","links":{"resolver":"https://pith.science/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2","bundle":"https://pith.science/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/bundle.json","state":"https://pith.science/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RCDOXLGLEEFUIGBFFMXEOKSMR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:RCDOXLGLEEFUIGBFFMXEOKSMR2","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":"bc6e7baa3da1a9badfcc3b3ffee55150f16907c364b47623ad238af18c61aeb8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-02-06T08:49:43Z","title_canon_sha256":"a54893f5f0ddd97b0ed47745eeff753817d3a142cf945d989c5031103b8bcca3"},"schema_version":"1.0","source":{"id":"astro-ph/0402142","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0402142","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0402142v1","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0402142","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"RCDOXLGLEEFU","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_16","alias_value":"RCDOXLGLEEFUIGBF","created_at":"2026-07-04T16:42:58Z"},{"alias_kind":"pith_short_8","alias_value":"RCDOXLGL","created_at":"2026-07-04T16:42:58Z"}],"graph_snapshots":[{"event_id":"sha256:9382dfe6970cc7b058ebfb7eee9c22ea895039aee6081b80048c7c8b39e3472f","target":"graph","created_at":"2026-07-04T16:42:58Z","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/0402142/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report EVN, MERLIN and VLBA observations at 18 cm, 6 cm and 3.6 cm of the Seyfert galaxies NGC 7674, NGC 5506, NGC 2110 and Mrk 1210 to study their structure and proper motions on pc scales and to add some constraints on the many possible causes of the radio-quietness of Seyferts. The component configurations in NGC 7674 and NGC 2110 are simple, linear structures, whereas the configurations in NGC 5506 and Mrk 1210 have multiple components with no clear axis of symmetry. We suggest that NGC 7674 is a low-luminosity compact symmetric object. Comparing the images at different epochs, we find ","authors_text":"A.L. Roy, A.S. Wilson, A. Witzel, E.J.M. Colbert, E. Middelberg, H. Falcke, K.J. Fricke, N.M. Nagar, R.P. Norris, T.P. Krichbaum","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-02-06T08:49:43Z","title":"Motion and Properties of Nuclear Radio Components in Seyfert Galaxies Seen with VLBI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0402142","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:e3d92e93d9422a1166b538c5255d023826890e38f84bd3b6132a4d7103927a06","target":"record","created_at":"2026-07-04T16:42:58Z","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":"bc6e7baa3da1a9badfcc3b3ffee55150f16907c364b47623ad238af18c61aeb8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-02-06T08:49:43Z","title_canon_sha256":"a54893f5f0ddd97b0ed47745eeff753817d3a142cf945d989c5031103b8bcca3"},"schema_version":"1.0","source":{"id":"astro-ph/0402142","kind":"arxiv","version":1}},"canonical_sha256":"8886ebaccb210b4418252b2e472a4c8ea74ac6aa6a257412d15236f4f6b58723","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8886ebaccb210b4418252b2e472a4c8ea74ac6aa6a257412d15236f4f6b58723","first_computed_at":"2026-07-04T16:42:58.970702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:42:58.970702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZWJeIXWw2rYoGcsWw+/3BENlgJYniwk06wb0mVbTXx86SlgCq0ylGONJoRLDE9mwKQSWgjyTc1PtN8xnm6IkCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:42:58.971141Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0402142","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3d92e93d9422a1166b538c5255d023826890e38f84bd3b6132a4d7103927a06","sha256:9382dfe6970cc7b058ebfb7eee9c22ea895039aee6081b80048c7c8b39e3472f"],"state_sha256":"a1e4610fb62c1f5731a05a96720943e6d9eb2a329eb510301b9dfbdccbb3d692"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LsRKa+AjjaBfcIqGCbxl99TC9GKL7Y6D/BZJw6woQCFBdpwNX2zrRMkQPWemiGv1rJxpWar2xH3icxA6AKXVAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T16:34:08.719336Z","bundle_sha256":"66add369ff73fb60e902bc6b391d2c0b01c4954e85187c5c22c4acf5889f231f"}}