{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:YLNVYM7PLVBCNDRYJQGCVQZNB5","short_pith_number":"pith:YLNVYM7P","canonical_record":{"source":{"id":"astro-ph/9811096","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-11-05T19:09:51Z","cross_cats_sorted":[],"title_canon_sha256":"63c0a8e92b5b8b42dcb83064ba2b184ba8ade94d176e4dcdf18145cbca3c9eb6","abstract_canon_sha256":"7cfc357c229718c60cedb69e37f55304205ad12b2ed84fa0575a5a2643e54261"},"schema_version":"1.0"},"canonical_sha256":"c2db5c33ef5d42268e384c0c2ac32d0f723f4ac7276cdbd24dd1b32351de8ff8","source":{"kind":"arxiv","id":"astro-ph/9811096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9811096","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9811096v1","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9811096","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_12","alias_value":"YLNVYM7PLVBC","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_16","alias_value":"YLNVYM7PLVBCNDRY","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_8","alias_value":"YLNVYM7P","created_at":"2026-07-04T16:07:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:YLNVYM7PLVBCNDRYJQGCVQZNB5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9811096","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-11-05T19:09:51Z","cross_cats_sorted":[],"title_canon_sha256":"63c0a8e92b5b8b42dcb83064ba2b184ba8ade94d176e4dcdf18145cbca3c9eb6","abstract_canon_sha256":"7cfc357c229718c60cedb69e37f55304205ad12b2ed84fa0575a5a2643e54261"},"schema_version":"1.0"},"canonical_sha256":"c2db5c33ef5d42268e384c0c2ac32d0f723f4ac7276cdbd24dd1b32351de8ff8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:07:09.967386Z","signature_b64":"5SHlKHaaxvkp8E3GBNeG1Gm0LwQiqNTBzHMl/7Ju4hZ2aETPGItfi94opMI88g0mGo4RzQSvuPdaBx9WybYCCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2db5c33ef5d42268e384c0c2ac32d0f723f4ac7276cdbd24dd1b32351de8ff8","last_reissued_at":"2026-07-04T16:07:09.966995Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:07:09.966995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9811096","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":"2026-07-04T16:07:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jPaLOO9zK+cDteRkz1qk9MNg1NSwDXgiX+2fTt6e2p3xUu7MpK6m2Ulb+EQOnj7+BTchGnJfbaxcm7ita2FBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:02:56.557565Z"},"content_sha256":"420fecdabb2acf317cfce9cded7ec344d87382664280bdf9eb7da6cf1c1e7b87","schema_version":"1.0","event_id":"sha256:420fecdabb2acf317cfce9cded7ec344d87382664280bdf9eb7da6cf1c1e7b87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:YLNVYM7PLVBCNDRYJQGCVQZNB5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nancay blind 21cm line survey of the Canes Venatici group region","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Observatoire de Paris, (3) Kapteyn Astronomical Institute, (4) Astronomical Institute, B. Binggeli (4), F. Briggs (3), Groningen, R.C. Kraan-Korteweg (1, T.I.Mostefaoui (2) ((1) Universidad de Guanajuato, University of Basel), W. van Driel (3)","submitted_at":"1998-11-05T19:09:51Z","abstract_excerpt":"A radio spectroscopic driftscan survey in the 21cm line with the Nancay Radio Telescope of 0.08 steradians of sky in the direction of the constellation Canes Venatici covering a heliocentric velocity range of -350 < V_hel < 2350 km/s produced 53 spectral features, which was further reduced to a sample of 33 reliably detected galaxies by extensive follow-up observations. With a typical noise level of rms = 10 mJy after Hanning smoothing, the survey is -- depending on where the detections are located with regard to the center of the beam -- sensitive to M(HI)=1-2x10^8 Msun at 23 Mpc and to M(HI)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9811096","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/9811096/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":"2026-07-04T16:07:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U8/twf8LUbOV1kz88do2fqlksNeqLIrFRdPLf/zoX6SPZF3EsnwyCG7RB42uH2odeJJW/3HZAJUXzASF4JglAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:02:56.558089Z"},"content_sha256":"b0b3e473bfae5fea2e12ea642f0b8aa3680f00ed81a2bb8d528e10595ba13c34","schema_version":"1.0","event_id":"sha256:b0b3e473bfae5fea2e12ea642f0b8aa3680f00ed81a2bb8d528e10595ba13c34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/bundle.json","state_url":"https://pith.science/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/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":"2026-08-06T21:02:56Z","links":{"resolver":"https://pith.science/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5","bundle":"https://pith.science/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/bundle.json","state":"https://pith.science/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YLNVYM7PLVBCNDRYJQGCVQZNB5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:YLNVYM7PLVBCNDRYJQGCVQZNB5","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":"7cfc357c229718c60cedb69e37f55304205ad12b2ed84fa0575a5a2643e54261","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-11-05T19:09:51Z","title_canon_sha256":"63c0a8e92b5b8b42dcb83064ba2b184ba8ade94d176e4dcdf18145cbca3c9eb6"},"schema_version":"1.0","source":{"id":"astro-ph/9811096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9811096","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9811096v1","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9811096","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_12","alias_value":"YLNVYM7PLVBC","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_16","alias_value":"YLNVYM7PLVBCNDRY","created_at":"2026-07-04T16:07:09Z"},{"alias_kind":"pith_short_8","alias_value":"YLNVYM7P","created_at":"2026-07-04T16:07:09Z"}],"graph_snapshots":[{"event_id":"sha256:b0b3e473bfae5fea2e12ea642f0b8aa3680f00ed81a2bb8d528e10595ba13c34","target":"graph","created_at":"2026-07-04T16:07:09Z","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/9811096/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A radio spectroscopic driftscan survey in the 21cm line with the Nancay Radio Telescope of 0.08 steradians of sky in the direction of the constellation Canes Venatici covering a heliocentric velocity range of -350 < V_hel < 2350 km/s produced 53 spectral features, which was further reduced to a sample of 33 reliably detected galaxies by extensive follow-up observations. With a typical noise level of rms = 10 mJy after Hanning smoothing, the survey is -- depending on where the detections are located with regard to the center of the beam -- sensitive to M(HI)=1-2x10^8 Msun at 23 Mpc and to M(HI)","authors_text":"2), (2) Observatoire de Paris, (3) Kapteyn Astronomical Institute, (4) Astronomical Institute, B. Binggeli (4), F. Briggs (3), Groningen, R.C. Kraan-Korteweg (1, T.I.Mostefaoui (2) ((1) Universidad de Guanajuato, University of Basel), W. van Driel (3)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-11-05T19:09:51Z","title":"Nancay blind 21cm line survey of the Canes Venatici group region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9811096","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":"sha256:420fecdabb2acf317cfce9cded7ec344d87382664280bdf9eb7da6cf1c1e7b87","target":"record","created_at":"2026-07-04T16:07:09Z","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":"7cfc357c229718c60cedb69e37f55304205ad12b2ed84fa0575a5a2643e54261","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-11-05T19:09:51Z","title_canon_sha256":"63c0a8e92b5b8b42dcb83064ba2b184ba8ade94d176e4dcdf18145cbca3c9eb6"},"schema_version":"1.0","source":{"id":"astro-ph/9811096","kind":"arxiv","version":1}},"canonical_sha256":"c2db5c33ef5d42268e384c0c2ac32d0f723f4ac7276cdbd24dd1b32351de8ff8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2db5c33ef5d42268e384c0c2ac32d0f723f4ac7276cdbd24dd1b32351de8ff8","first_computed_at":"2026-07-04T16:07:09.966995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:07:09.966995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5SHlKHaaxvkp8E3GBNeG1Gm0LwQiqNTBzHMl/7Ju4hZ2aETPGItfi94opMI88g0mGo4RzQSvuPdaBx9WybYCCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:07:09.967386Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9811096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:420fecdabb2acf317cfce9cded7ec344d87382664280bdf9eb7da6cf1c1e7b87","sha256:b0b3e473bfae5fea2e12ea642f0b8aa3680f00ed81a2bb8d528e10595ba13c34"],"state_sha256":"eba08a3a4b49c8422cf49a7c282d76e4192acc6c73e6d699309416fc371f73cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CpkjqJf6ZG0vx3stYzeKp7NyIvKR+yk9T34GbVfjFoLej7+SFMSyLvYjdCfpgeSn9q4CBUSh69kpMkzkr588Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T21:02:56.563450Z","bundle_sha256":"44c08763c3480fde8ee4b86d3c526b9671aace46f05b5fed3692613342c210d6"}}