{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:4OKGJ43JQQ2EVMOG3U2SQSOSTZ","short_pith_number":"pith:4OKGJ43J","canonical_record":{"source":{"id":"1203.2196","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-09T22:12:35Z","cross_cats_sorted":[],"title_canon_sha256":"fbb66d2dd3e54ea2b0bff6a643d24a285e3affa88bb8864c0be147a9bbf21aa7","abstract_canon_sha256":"461ca781a0962ffbb7704704058b54fb387f8e3534cc467d55c395297bc37393"},"schema_version":"1.0"},"canonical_sha256":"e39464f36984344ab1c6dd352849d29e5765000623897a38fb27c457d96092f7","source":{"kind":"arxiv","id":"1203.2196","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.2196","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"arxiv_version","alias_value":"1203.2196v1","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.2196","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"pith_short_12","alias_value":"4OKGJ43JQQ2E","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4OKGJ43JQQ2EVMOG","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4OKGJ43J","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:4OKGJ43JQQ2EVMOG3U2SQSOSTZ","target":"record","payload":{"canonical_record":{"source":{"id":"1203.2196","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-09T22:12:35Z","cross_cats_sorted":[],"title_canon_sha256":"fbb66d2dd3e54ea2b0bff6a643d24a285e3affa88bb8864c0be147a9bbf21aa7","abstract_canon_sha256":"461ca781a0962ffbb7704704058b54fb387f8e3534cc467d55c395297bc37393"},"schema_version":"1.0"},"canonical_sha256":"e39464f36984344ab1c6dd352849d29e5765000623897a38fb27c457d96092f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:10.455177Z","signature_b64":"A4jc14N8WNSzh0Oxqx2AMtYnkNKfvEkpDkcweDWL93MNueR6mZEotn0OTgsS0kYKvdI2WifV4YWW/n9kXWP5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e39464f36984344ab1c6dd352849d29e5765000623897a38fb27c457d96092f7","last_reissued_at":"2026-05-18T01:58:10.454672Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:10.454672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.2196","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":"2026-05-18T01:58:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"49Mv4fArP5kBj/DR43LL6fvA6ex0gcHRlOGcm3RL4f28fS24akYKXmjl7hZ7tts2cROYJ4BjzafKb8St//g+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T05:33:29.625393Z"},"content_sha256":"2e754861a24e49e5e85e79aba3b089f88cb3c3e505eb4dd3b88d8055860a2319","schema_version":"1.0","event_id":"sha256:2e754861a24e49e5e85e79aba3b089f88cb3c3e505eb4dd3b88d8055860a2319"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:4OKGJ43JQQ2EVMOG3U2SQSOSTZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A z~3 radio galaxy and its protocluster: evidence for a superstructure?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. P. Venemans, E. Kuiper, G. K. Miley, H. J. A. Rottgering, N. A. Hatch","submitted_at":"2012-03-09T22:12:35Z","abstract_excerpt":"We present spectroscopic follow-up observations of Lyman Break Galaxies (LBGs) selected in the field surrounding the radio galaxy MRC0316-257 at z~3.13 (0316). Robust spectroscopic redshifts are determined for 20 out of 24 objects. Three of the spectroscopically confirmed galaxies have 3.12<z<3.13 indicating that these objects reside in a protocluster structure previously found around the radio galaxy. An additional 5 objects are found 1600 km/s blue-shifted with respect to the main protocluster structure. This is in addition to three [OIII] emitters found at this redshift in a previous study."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.2196","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":"2026-05-18T01:58:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KEqT+P839f/uDG/h3++ABb8wxOgUcG1D/+a1j5Ep/BsXEZZrDgebmDeIGaWyY/LJrQUSlHNDlkjrCqmUDYxoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T05:33:29.625751Z"},"content_sha256":"babb0fd8295bd8b3a95bf3bd25096e21ddeceae44518c0a72c43b85a1a1b2654","schema_version":"1.0","event_id":"sha256:babb0fd8295bd8b3a95bf3bd25096e21ddeceae44518c0a72c43b85a1a1b2654"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/bundle.json","state_url":"https://pith.science/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/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":"2026-05-21T05:33:29Z","links":{"resolver":"https://pith.science/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ","bundle":"https://pith.science/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/bundle.json","state":"https://pith.science/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4OKGJ43JQQ2EVMOG3U2SQSOSTZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4OKGJ43JQQ2EVMOG3U2SQSOSTZ","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":"461ca781a0962ffbb7704704058b54fb387f8e3534cc467d55c395297bc37393","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-09T22:12:35Z","title_canon_sha256":"fbb66d2dd3e54ea2b0bff6a643d24a285e3affa88bb8864c0be147a9bbf21aa7"},"schema_version":"1.0","source":{"id":"1203.2196","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.2196","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"arxiv_version","alias_value":"1203.2196v1","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.2196","created_at":"2026-05-18T01:58:10Z"},{"alias_kind":"pith_short_12","alias_value":"4OKGJ43JQQ2E","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4OKGJ43JQQ2EVMOG","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4OKGJ43J","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:babb0fd8295bd8b3a95bf3bd25096e21ddeceae44518c0a72c43b85a1a1b2654","target":"graph","created_at":"2026-05-18T01:58:10Z","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 spectroscopic follow-up observations of Lyman Break Galaxies (LBGs) selected in the field surrounding the radio galaxy MRC0316-257 at z~3.13 (0316). Robust spectroscopic redshifts are determined for 20 out of 24 objects. Three of the spectroscopically confirmed galaxies have 3.12<z<3.13 indicating that these objects reside in a protocluster structure previously found around the radio galaxy. An additional 5 objects are found 1600 km/s blue-shifted with respect to the main protocluster structure. This is in addition to three [OIII] emitters found at this redshift in a previous study.","authors_text":"B. P. Venemans, E. Kuiper, G. K. Miley, H. J. A. Rottgering, N. A. Hatch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-09T22:12:35Z","title":"A z~3 radio galaxy and its protocluster: evidence for a superstructure?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.2196","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":"sha256:2e754861a24e49e5e85e79aba3b089f88cb3c3e505eb4dd3b88d8055860a2319","target":"record","created_at":"2026-05-18T01:58:10Z","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":"461ca781a0962ffbb7704704058b54fb387f8e3534cc467d55c395297bc37393","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-09T22:12:35Z","title_canon_sha256":"fbb66d2dd3e54ea2b0bff6a643d24a285e3affa88bb8864c0be147a9bbf21aa7"},"schema_version":"1.0","source":{"id":"1203.2196","kind":"arxiv","version":1}},"canonical_sha256":"e39464f36984344ab1c6dd352849d29e5765000623897a38fb27c457d96092f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e39464f36984344ab1c6dd352849d29e5765000623897a38fb27c457d96092f7","first_computed_at":"2026-05-18T01:58:10.454672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:10.454672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A4jc14N8WNSzh0Oxqx2AMtYnkNKfvEkpDkcweDWL93MNueR6mZEotn0OTgsS0kYKvdI2WifV4YWW/n9kXWP5Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:10.455177Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.2196","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e754861a24e49e5e85e79aba3b089f88cb3c3e505eb4dd3b88d8055860a2319","sha256:babb0fd8295bd8b3a95bf3bd25096e21ddeceae44518c0a72c43b85a1a1b2654"],"state_sha256":"474b11a5cef9677415c3ecb1ead640a4e2a9a9fb4eb2f281cd2b364794f85f29"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wCTn7MorpOmEPvWKImeK0ANH1U6hspyx10SFVCpcuT48zK0w2iPIyQD/rwV1rk6w6Nf5iEGU3jjpSQxo4CquBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T05:33:29.628217Z","bundle_sha256":"43c3fc0f43a752111cd1db07a0f8a294285c5c0f8f6de21034b8ae17d0e51bf0"}}