{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:HF7EILAYESZOAPM3I5HAHJJMF5","short_pith_number":"pith:HF7EILAY","canonical_record":{"source":{"id":"astro-ph/0011415","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-22T20:06:39Z","cross_cats_sorted":[],"title_canon_sha256":"6bb25cf40c8e417e6914125c7937516280a84ef4232396cec7514141b18d3797","abstract_canon_sha256":"e930945fbef8a748f9d24a315d2d1df3d86fe82ae3bc27f7ade47241e5aefb9d"},"schema_version":"1.0"},"canonical_sha256":"397e442c1824b2e03d9b474e03a52c2f7e2e4d2eaa6c5876286dbf7cdbebf324","source":{"kind":"arxiv","id":"astro-ph/0011415","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0011415","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0011415v1","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0011415","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"pith_short_12","alias_value":"HF7EILAYESZO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"HF7EILAYESZOAPM3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"HF7EILAY","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:HF7EILAYESZOAPM3I5HAHJJMF5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0011415","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-22T20:06:39Z","cross_cats_sorted":[],"title_canon_sha256":"6bb25cf40c8e417e6914125c7937516280a84ef4232396cec7514141b18d3797","abstract_canon_sha256":"e930945fbef8a748f9d24a315d2d1df3d86fe82ae3bc27f7ade47241e5aefb9d"},"schema_version":"1.0"},"canonical_sha256":"397e442c1824b2e03d9b474e03a52c2f7e2e4d2eaa6c5876286dbf7cdbebf324","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:45.279895Z","signature_b64":"0nJwfjIak+iFigamqh7G2vi9Pex03inaYPMf+qLp1bqUEXbzBy5xsCYYoy3BaQ5ef4B23w8gva5RiZVw8WyCCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"397e442c1824b2e03d9b474e03a52c2f7e2e4d2eaa6c5876286dbf7cdbebf324","last_reissued_at":"2026-05-18T01:40:45.279153Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:45.279153Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0011415","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":"2026-05-18T01:40:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R9kOEpubSCWm6KqNh4jSR0LtgWck0+vvb6wRfPtGnmeoWex/YWvolrRBkhJWGOZ9EzpeRBI3LAIHqP2YcwGEBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:23:29.685278Z"},"content_sha256":"0aedac3a13bae797fe582505efc638ae69e6c7946d489c065b63574bdb7b756f","schema_version":"1.0","event_id":"sha256:0aedac3a13bae797fe582505efc638ae69e6c7946d489c065b63574bdb7b756f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:HF7EILAYESZOAPM3I5HAHJJMF5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Universidad de Chile, (3) UKIRT, A. J. Adamson (3) ((1) University of Central Lancashire, Chile, C. P. Haines (1, L. E. Campusano (2), R. G. Clowes (1), UK, USA)","submitted_at":"2000-11-22T20:06:39Z","abstract_excerpt":"We have conducted ultra-deep optical and deep near-infrared observations of a field around the z=1.226 radio-quiet quasar 104420.8+055739 from the Clowes-Campusano LQG of 18 quasars at z~1.3 in search of associated galaxy clustering. Galaxies at these redshifts are distinguished by their extremely-red colours, with I-K>3.75, and we find a factor ~11 overdensity of such galaxies in a 2.25'x2.25' field centred on the quasar. In particular, we find 15-18 galaxies with colours consistent with being a population of passively-evolving massive ellipticals at the quasar redshift. They form `fingers' i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0011415","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":"2026-05-18T01:40:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uo7sqYt48pi3wy8107WVKfcsU/10eK/jd3gYktboivH9wyJXh0PiB5b2bMgVvh9ZrG9aIItzdGSkXo+qVE9SAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:23:29.686014Z"},"content_sha256":"3d141fe2bc716ba70cae686233a52a6b20ce42d9148cfd170de64503f108699a","schema_version":"1.0","event_id":"sha256:3d141fe2bc716ba70cae686233a52a6b20ce42d9148cfd170de64503f108699a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HF7EILAYESZOAPM3I5HAHJJMF5/bundle.json","state_url":"https://pith.science/pith/HF7EILAYESZOAPM3I5HAHJJMF5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HF7EILAYESZOAPM3I5HAHJJMF5/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":"2026-05-29T19:23:29Z","links":{"resolver":"https://pith.science/pith/HF7EILAYESZOAPM3I5HAHJJMF5","bundle":"https://pith.science/pith/HF7EILAYESZOAPM3I5HAHJJMF5/bundle.json","state":"https://pith.science/pith/HF7EILAYESZOAPM3I5HAHJJMF5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HF7EILAYESZOAPM3I5HAHJJMF5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:HF7EILAYESZOAPM3I5HAHJJMF5","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":"e930945fbef8a748f9d24a315d2d1df3d86fe82ae3bc27f7ade47241e5aefb9d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-22T20:06:39Z","title_canon_sha256":"6bb25cf40c8e417e6914125c7937516280a84ef4232396cec7514141b18d3797"},"schema_version":"1.0","source":{"id":"astro-ph/0011415","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0011415","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0011415v1","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0011415","created_at":"2026-05-18T01:40:45Z"},{"alias_kind":"pith_short_12","alias_value":"HF7EILAYESZO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"HF7EILAYESZOAPM3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"HF7EILAY","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:3d141fe2bc716ba70cae686233a52a6b20ce42d9148cfd170de64503f108699a","target":"graph","created_at":"2026-05-18T01:40:45Z","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 have conducted ultra-deep optical and deep near-infrared observations of a field around the z=1.226 radio-quiet quasar 104420.8+055739 from the Clowes-Campusano LQG of 18 quasars at z~1.3 in search of associated galaxy clustering. Galaxies at these redshifts are distinguished by their extremely-red colours, with I-K>3.75, and we find a factor ~11 overdensity of such galaxies in a 2.25'x2.25' field centred on the quasar. In particular, we find 15-18 galaxies with colours consistent with being a population of passively-evolving massive ellipticals at the quasar redshift. They form `fingers' i","authors_text":"2), (2) Universidad de Chile, (3) UKIRT, A. J. Adamson (3) ((1) University of Central Lancashire, Chile, C. P. Haines (1, L. E. Campusano (2), R. G. Clowes (1), UK, USA)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-11-22T20:06:39Z","title":"The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0011415","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":"sha256:0aedac3a13bae797fe582505efc638ae69e6c7946d489c065b63574bdb7b756f","target":"record","created_at":"2026-05-18T01:40:45Z","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":"e930945fbef8a748f9d24a315d2d1df3d86fe82ae3bc27f7ade47241e5aefb9d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-22T20:06:39Z","title_canon_sha256":"6bb25cf40c8e417e6914125c7937516280a84ef4232396cec7514141b18d3797"},"schema_version":"1.0","source":{"id":"astro-ph/0011415","kind":"arxiv","version":1}},"canonical_sha256":"397e442c1824b2e03d9b474e03a52c2f7e2e4d2eaa6c5876286dbf7cdbebf324","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"397e442c1824b2e03d9b474e03a52c2f7e2e4d2eaa6c5876286dbf7cdbebf324","first_computed_at":"2026-05-18T01:40:45.279153Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:45.279153Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0nJwfjIak+iFigamqh7G2vi9Pex03inaYPMf+qLp1bqUEXbzBy5xsCYYoy3BaQ5ef4B23w8gva5RiZVw8WyCCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:45.279895Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0011415","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0aedac3a13bae797fe582505efc638ae69e6c7946d489c065b63574bdb7b756f","sha256:3d141fe2bc716ba70cae686233a52a6b20ce42d9148cfd170de64503f108699a"],"state_sha256":"844a0f3f6e6ed89fc1ae94cc5724033014e8a6d9ce0a5cb623bd421871acffcc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aG8Hatxwbp/mC2/cWah3hMaw5lYP2v0UUtbbIWNkGbYhnqvfKVHl1S74XyQisZecQh8xDbQSZ9WNobLfUhNXDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T19:23:29.689223Z","bundle_sha256":"4381029286c2d61c134725e2fee7b18af70363f1d6c1dadfc49cf9555ff750e3"}}