{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:F3LIAXYNEHWCK4XXE3MSE4ISAW","short_pith_number":"pith:F3LIAXYN","canonical_record":{"source":{"id":"astro-ph/0106001","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-31T23:00:30Z","cross_cats_sorted":[],"title_canon_sha256":"47eacf1b7b036c20cd87613c5859c67b7db7a717f64546ca26fc4d925461a3d6","abstract_canon_sha256":"61dbac3f9a2111c35683ee72690d4e29b6a0f9eb047bda7cc6c39b10f45ab61b"},"schema_version":"1.0"},"canonical_sha256":"2ed6805f0d21ec2572f726d92271120589c6c8c210cd1d5bccd876aba52e1416","source":{"kind":"arxiv","id":"astro-ph/0106001","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106001","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106001v1","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106001","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_12","alias_value":"F3LIAXYNEHWC","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_16","alias_value":"F3LIAXYNEHWCK4XX","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_8","alias_value":"F3LIAXYN","created_at":"2026-07-04T16:23:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:F3LIAXYNEHWCK4XXE3MSE4ISAW","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0106001","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-31T23:00:30Z","cross_cats_sorted":[],"title_canon_sha256":"47eacf1b7b036c20cd87613c5859c67b7db7a717f64546ca26fc4d925461a3d6","abstract_canon_sha256":"61dbac3f9a2111c35683ee72690d4e29b6a0f9eb047bda7cc6c39b10f45ab61b"},"schema_version":"1.0"},"canonical_sha256":"2ed6805f0d21ec2572f726d92271120589c6c8c210cd1d5bccd876aba52e1416","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:28.661310Z","signature_b64":"NH6Wact1vu5w221Kfc7CIaqrY3bhDfC5pzY9/VE92rC5nt4BiB+V75LfSgO7tsR8QmM3bJ2aPX6ydVxCPh5zDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ed6805f0d21ec2572f726d92271120589c6c8c210cd1d5bccd876aba52e1416","last_reissued_at":"2026-07-04T16:23:28.660896Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:28.660896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0106001","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":"2026-07-04T16:23:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n1OAdW6yExNM6u+TPfgDl7fE3G31Op9nlYzX+XCu6uDf5b0exAshLAfEv3fxAxWVUomYaGr8BxoeqsVQHYv9AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:37:38.751636Z"},"content_sha256":"65bb7684cf63051cd140353ab66d21de183d45efae5bd2bc7df14282188785ad","schema_version":"1.0","event_id":"sha256:65bb7684cf63051cd140353ab66d21de183d45efae5bd2bc7df14282188785ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:F3LIAXYNEHWCK4XXE3MSE4ISAW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Compact Symmetric Objects as Radio Flux Density Calibrators","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. D. Fassnacht (NRAO), G. B. Taylor (NRAO)","submitted_at":"2001-05-31T23:00:30Z","abstract_excerpt":"We present results from the first intensive monitoring campaign of a sample of Compact Symmetric Objects (CSOs). We observed seven CSOs at 8.5 GHz over a period of eight months, with an average spacing between observations of 2.7 days. Our results show that, as predicted, the flux densities of the CSOs are extremely stable; the mean RMS variability of the sample was 0.7% in flux density. The low variability of the CSOs makes them excellent flux density calibrators at this frequency. We recommend that at least four CSOs be included in any VLA monitoring campaign which requires precise epoch-to-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106001","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/0106001/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":"2026-07-04T16:23:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0v80qfjjqNrqlH/kGx7YU1+AmcKJG14fO/IbZV/8YmJPmo3GkwdHeIzsHSkFwKqReea3EUvjGWK011GYPJ9RBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:37:38.752239Z"},"content_sha256":"ba7c6eea5b4829b4786d256b2b4ab46ce931168144a6e7218147e21a814c062e","schema_version":"1.0","event_id":"sha256:ba7c6eea5b4829b4786d256b2b4ab46ce931168144a6e7218147e21a814c062e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/bundle.json","state_url":"https://pith.science/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/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":"2026-08-03T18:37:38Z","links":{"resolver":"https://pith.science/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW","bundle":"https://pith.science/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/bundle.json","state":"https://pith.science/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F3LIAXYNEHWCK4XXE3MSE4ISAW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:F3LIAXYNEHWCK4XXE3MSE4ISAW","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":"61dbac3f9a2111c35683ee72690d4e29b6a0f9eb047bda7cc6c39b10f45ab61b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-31T23:00:30Z","title_canon_sha256":"47eacf1b7b036c20cd87613c5859c67b7db7a717f64546ca26fc4d925461a3d6"},"schema_version":"1.0","source":{"id":"astro-ph/0106001","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106001","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106001v1","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106001","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_12","alias_value":"F3LIAXYNEHWC","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_16","alias_value":"F3LIAXYNEHWCK4XX","created_at":"2026-07-04T16:23:28Z"},{"alias_kind":"pith_short_8","alias_value":"F3LIAXYN","created_at":"2026-07-04T16:23:28Z"}],"graph_snapshots":[{"event_id":"sha256:ba7c6eea5b4829b4786d256b2b4ab46ce931168144a6e7218147e21a814c062e","target":"graph","created_at":"2026-07-04T16:23:28Z","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/0106001/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present results from the first intensive monitoring campaign of a sample of Compact Symmetric Objects (CSOs). We observed seven CSOs at 8.5 GHz over a period of eight months, with an average spacing between observations of 2.7 days. Our results show that, as predicted, the flux densities of the CSOs are extremely stable; the mean RMS variability of the sample was 0.7% in flux density. The low variability of the CSOs makes them excellent flux density calibrators at this frequency. We recommend that at least four CSOs be included in any VLA monitoring campaign which requires precise epoch-to-","authors_text":"C. D. Fassnacht (NRAO), G. B. Taylor (NRAO)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-05-31T23:00:30Z","title":"Compact Symmetric Objects as Radio Flux Density Calibrators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106001","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":"sha256:65bb7684cf63051cd140353ab66d21de183d45efae5bd2bc7df14282188785ad","target":"record","created_at":"2026-07-04T16:23:28Z","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":"61dbac3f9a2111c35683ee72690d4e29b6a0f9eb047bda7cc6c39b10f45ab61b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-31T23:00:30Z","title_canon_sha256":"47eacf1b7b036c20cd87613c5859c67b7db7a717f64546ca26fc4d925461a3d6"},"schema_version":"1.0","source":{"id":"astro-ph/0106001","kind":"arxiv","version":1}},"canonical_sha256":"2ed6805f0d21ec2572f726d92271120589c6c8c210cd1d5bccd876aba52e1416","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ed6805f0d21ec2572f726d92271120589c6c8c210cd1d5bccd876aba52e1416","first_computed_at":"2026-07-04T16:23:28.660896Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:28.660896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NH6Wact1vu5w221Kfc7CIaqrY3bhDfC5pzY9/VE92rC5nt4BiB+V75LfSgO7tsR8QmM3bJ2aPX6ydVxCPh5zDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:28.661310Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0106001","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65bb7684cf63051cd140353ab66d21de183d45efae5bd2bc7df14282188785ad","sha256:ba7c6eea5b4829b4786d256b2b4ab46ce931168144a6e7218147e21a814c062e"],"state_sha256":"5e4055151a15b6eb46954ca44248fc19c760055dff86c17dea886f01b3bafaa5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aj2ljaNTWaHj5ZswpzP+Hfn60mP4JeGxvhLtw70oATcxFhTdH/pL2pgdDJJEBnNUuwSBOvISffmwy3F4Qd/jAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:37:38.757152Z","bundle_sha256":"620f673aed648e49925ec36d4310644d8b6b7adde9ca3d1250748f6d815a2458"}}