{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2FB7V4E5TP6EAJAHZTJDT66OUR","short_pith_number":"pith:2FB7V4E5","canonical_record":{"source":{"id":"1203.3094","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-14T14:14:13Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f40d57c945fa341044f6de97a61daa9c42dfeeb80e80b9ff297432868b4c3e7c","abstract_canon_sha256":"709dfaf7fbe6091d9e67dd5aea013466f476a7bb33e9a83ffb4a8aa45b593387"},"schema_version":"1.0"},"canonical_sha256":"d143faf09d9bfc402407ccd239fbcea46736749a02c12aa2cdea2c38fa167105","source":{"kind":"arxiv","id":"1203.3094","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3094","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3094v1","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3094","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"pith_short_12","alias_value":"2FB7V4E5TP6E","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2FB7V4E5TP6EAJAH","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2FB7V4E5","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2FB7V4E5TP6EAJAHZTJDT66OUR","target":"record","payload":{"canonical_record":{"source":{"id":"1203.3094","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-14T14:14:13Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f40d57c945fa341044f6de97a61daa9c42dfeeb80e80b9ff297432868b4c3e7c","abstract_canon_sha256":"709dfaf7fbe6091d9e67dd5aea013466f476a7bb33e9a83ffb4a8aa45b593387"},"schema_version":"1.0"},"canonical_sha256":"d143faf09d9bfc402407ccd239fbcea46736749a02c12aa2cdea2c38fa167105","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:08.875055Z","signature_b64":"fcc2FM3uaJvacLW0E6RiOeP0AH+n49APFSO4Uo/uIBcUEb/2Gb8pyT+ywTGABNOjymSQVi6YmVK/cR1vvL63Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d143faf09d9bfc402407ccd239fbcea46736749a02c12aa2cdea2c38fa167105","last_reissued_at":"2026-05-18T01:58:08.874581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:08.874581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.3094","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":"2026-05-18T01:58:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"02CREpRkhwN2LxXyBHfxXtHIGpqWdMV5LZHJJYtuvmZDJVAkKfK+Lb5otY2L6eC9Fqfk9l7i0mRmDu7e6oleAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:04:27.108164Z"},"content_sha256":"ac81ec39c0708848c48afc32cb6032f3664bb18423960239f88ed5fa1ac0a13d","schema_version":"1.0","event_id":"sha256:ac81ec39c0708848c48afc32cb6032f3664bb18423960239f88ed5fa1ac0a13d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2FB7V4E5TP6EAJAHZTJDT66OUR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Arecibo Galaxy Environment Survey V : The Virgo Cluster (I)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"J. I. Davies, R. Auld, R. F. Minchin, R. Taylor","submitted_at":"2012-03-14T14:14:13Z","abstract_excerpt":"We present 21 cm observations of a 10 $\\times$ 2 degree region in the Virgo cluster, obtained as part of the Arecibo Galaxy Environment Survey. 289 sources are detected over the full redshift range (-2,000 $<$ $v$$_{hel}$ $<$ + 20,000 km/s) with 95 belonging to the cluster ($v$$_{hel}$ $<$ 3,000 km/s). We combine our observations with data from the optically selected Virgo Cluster Catalogue (VCC) and the Sloan Digital Sky Survey (SDSS). Most of our detections can be clearly associated with a unique optical counterpart, and 30% of the cluster detections are new objects fainter than the VCC opti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3094","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":"2026-05-18T01:58:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t9iAh+6yddIXcMRY7VTb0ptzadD6xhnJrGpKn8kC3+47Ee2eGMKWAoet6usg4+/xs1KjI2SoEezjwaVheZoOBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:04:27.108817Z"},"content_sha256":"0b70e93df8a0af654ffdfeba0e9083605e59173090becc87f79b53d5a40119cd","schema_version":"1.0","event_id":"sha256:0b70e93df8a0af654ffdfeba0e9083605e59173090becc87f79b53d5a40119cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/bundle.json","state_url":"https://pith.science/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/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":"2026-06-02T15:04:27Z","links":{"resolver":"https://pith.science/pith/2FB7V4E5TP6EAJAHZTJDT66OUR","bundle":"https://pith.science/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/bundle.json","state":"https://pith.science/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2FB7V4E5TP6EAJAHZTJDT66OUR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2FB7V4E5TP6EAJAHZTJDT66OUR","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":"709dfaf7fbe6091d9e67dd5aea013466f476a7bb33e9a83ffb4a8aa45b593387","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-14T14:14:13Z","title_canon_sha256":"f40d57c945fa341044f6de97a61daa9c42dfeeb80e80b9ff297432868b4c3e7c"},"schema_version":"1.0","source":{"id":"1203.3094","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3094","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3094v1","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3094","created_at":"2026-05-18T01:58:08Z"},{"alias_kind":"pith_short_12","alias_value":"2FB7V4E5TP6E","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2FB7V4E5TP6EAJAH","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2FB7V4E5","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:0b70e93df8a0af654ffdfeba0e9083605e59173090becc87f79b53d5a40119cd","target":"graph","created_at":"2026-05-18T01:58:08Z","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":"We present 21 cm observations of a 10 $\\times$ 2 degree region in the Virgo cluster, obtained as part of the Arecibo Galaxy Environment Survey. 289 sources are detected over the full redshift range (-2,000 $<$ $v$$_{hel}$ $<$ + 20,000 km/s) with 95 belonging to the cluster ($v$$_{hel}$ $<$ 3,000 km/s). We combine our observations with data from the optically selected Virgo Cluster Catalogue (VCC) and the Sloan Digital Sky Survey (SDSS). Most of our detections can be clearly associated with a unique optical counterpart, and 30% of the cluster detections are new objects fainter than the VCC opti","authors_text":"J. I. Davies, R. Auld, R. F. Minchin, R. Taylor","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-14T14:14:13Z","title":"The Arecibo Galaxy Environment Survey V : The Virgo Cluster (I)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3094","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:ac81ec39c0708848c48afc32cb6032f3664bb18423960239f88ed5fa1ac0a13d","target":"record","created_at":"2026-05-18T01:58:08Z","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":"709dfaf7fbe6091d9e67dd5aea013466f476a7bb33e9a83ffb4a8aa45b593387","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-14T14:14:13Z","title_canon_sha256":"f40d57c945fa341044f6de97a61daa9c42dfeeb80e80b9ff297432868b4c3e7c"},"schema_version":"1.0","source":{"id":"1203.3094","kind":"arxiv","version":1}},"canonical_sha256":"d143faf09d9bfc402407ccd239fbcea46736749a02c12aa2cdea2c38fa167105","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d143faf09d9bfc402407ccd239fbcea46736749a02c12aa2cdea2c38fa167105","first_computed_at":"2026-05-18T01:58:08.874581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:08.874581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fcc2FM3uaJvacLW0E6RiOeP0AH+n49APFSO4Uo/uIBcUEb/2Gb8pyT+ywTGABNOjymSQVi6YmVK/cR1vvL63Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:08.875055Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.3094","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac81ec39c0708848c48afc32cb6032f3664bb18423960239f88ed5fa1ac0a13d","sha256:0b70e93df8a0af654ffdfeba0e9083605e59173090becc87f79b53d5a40119cd"],"state_sha256":"13b376302f96a3d4e9713f940ae4484a278264e042beea894f50d5c71546b873"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SqVkHTUqzPMohbv1ZG5b3+oZmNEBKgMOrRMzeNnAsfhpR/DIbfA+U/HIni5SCiHVNZK8yoYzpaBOsdU0yidQDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:04:27.111834Z","bundle_sha256":"2d439bb5074615417145335be001b5759cac622747191211b1f2dfe5d70854f6"}}