{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3WDSHLAHS7WX6FU7AUL2H5EFPN","short_pith_number":"pith:3WDSHLAH","canonical_record":{"source":{"id":"1105.0586","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","cross_cats_sorted":[],"title_canon_sha256":"97b45c01f5afb121f2f6a37a5d29aef1727ec73dc47f20c473fa2510b9027088","abstract_canon_sha256":"4d770e85134e7bf725a2c97693a0a3416a3e35f501a97c9c36113936698d91fc"},"schema_version":"1.0"},"canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","source":{"kind":"arxiv","id":"1105.0586","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0586","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0586v1","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0586","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"pith_short_12","alias_value":"3WDSHLAHS7WX","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3WDSHLAHS7WX6FU7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3WDSHLAH","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3WDSHLAHS7WX6FU7AUL2H5EFPN","target":"record","payload":{"canonical_record":{"source":{"id":"1105.0586","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","cross_cats_sorted":[],"title_canon_sha256":"97b45c01f5afb121f2f6a37a5d29aef1727ec73dc47f20c473fa2510b9027088","abstract_canon_sha256":"4d770e85134e7bf725a2c97693a0a3416a3e35f501a97c9c36113936698d91fc"},"schema_version":"1.0"},"canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:09.637103Z","signature_b64":"s+Us0EFe9VAK2bM+YeSVfLkwDCrVlnuyzcN/6Dwa1TNwxUaCaQw9WY6Lz0kEm/6zaPyiK4qzgMqTe4hvxDFqAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","last_reissued_at":"2026-05-18T02:02:09.636406Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:09.636406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.0586","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":"2026-05-18T02:02:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aJIzm/jdQ/LCm4lHJGfCa6oCpOluZdFzDktWOnWrhsQbylfdvIZRAjg8GIH+Y+60Z+YDclTuJ+5F6S5kRaAOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:50:49.888817Z"},"content_sha256":"a80832da2382e9b15b907907c838c14237cd30a2e476499c0829b4831f663bf0","schema_version":"1.0","event_id":"sha256:a80832da2382e9b15b907907c838c14237cd30a2e476499c0829b4831f663bf0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3WDSHLAHS7WX6FU7AUL2H5EFPN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Spitzer Extragalactic Representative Volume Survey (SERVS): The Environments of High-z SDSS Quasi-Stellar-Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cava, D. Farrah, D. G. Bonfield, E. Gonz\\'alez-Solares, J. Afonso, J. A. Stevens, J.-C. Mauduit, J. Surace, J. T. Falder, L. Marchetti, Matt J. Jarvis, M. Lacy, M. Vaccari, N. Seymour, S. Oliver","submitted_at":"2011-05-03T13:54:07Z","abstract_excerpt":"This paper presents a study of the environments of SDSS Quasi-Stellar-Objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied in large numbers with data of this depth before. We use the IRAC 3.6-4.5{\\mu}m colour of objects and ancillary r-band data to filter out as much foreground contamination as possible. This technique allows us to find a significant (> 4-{\\sigma}) over-density of galaxies around QSOs in a redshift bin centred on z ~ 2.0 and a (> 2-{\\sigma}) over-density of galaxies around QSOs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0586","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":"2026-05-18T02:02:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jmWld4mIwFXPVEWuLPXRSyyxXb/e8yvgZ/AL1RoHkkUQmhbCVfiplsUpIkT7YtPo5E7xMGu9U2DW21PlVaLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:50:49.889160Z"},"content_sha256":"bcfd562b5ae6840510162e3378ee8b75e6c09c15f78b3f8ca6c1b88104f68b21","schema_version":"1.0","event_id":"sha256:bcfd562b5ae6840510162e3378ee8b75e6c09c15f78b3f8ca6c1b88104f68b21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/bundle.json","state_url":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/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":"2026-06-03T17:50:49Z","links":{"resolver":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN","bundle":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/bundle.json","state":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3WDSHLAHS7WX6FU7AUL2H5EFPN","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":"4d770e85134e7bf725a2c97693a0a3416a3e35f501a97c9c36113936698d91fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","title_canon_sha256":"97b45c01f5afb121f2f6a37a5d29aef1727ec73dc47f20c473fa2510b9027088"},"schema_version":"1.0","source":{"id":"1105.0586","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0586","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0586v1","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0586","created_at":"2026-05-18T02:02:09Z"},{"alias_kind":"pith_short_12","alias_value":"3WDSHLAHS7WX","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3WDSHLAHS7WX6FU7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3WDSHLAH","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:bcfd562b5ae6840510162e3378ee8b75e6c09c15f78b3f8ca6c1b88104f68b21","target":"graph","created_at":"2026-05-18T02:02:09Z","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"},"paper":{"abstract_excerpt":"This paper presents a study of the environments of SDSS Quasi-Stellar-Objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied in large numbers with data of this depth before. We use the IRAC 3.6-4.5{\\mu}m colour of objects and ancillary r-band data to filter out as much foreground contamination as possible. This technique allows us to find a significant (> 4-{\\sigma}) over-density of galaxies around QSOs in a redshift bin centred on z ~ 2.0 and a (> 2-{\\sigma}) over-density of galaxies around QSOs","authors_text":"A. Cava, D. Farrah, D. G. Bonfield, E. Gonz\\'alez-Solares, J. Afonso, J. A. Stevens, J.-C. Mauduit, J. Surace, J. T. Falder, L. Marchetti, Matt J. Jarvis, M. Lacy, M. Vaccari, N. Seymour, S. Oliver","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","title":"The Spitzer Extragalactic Representative Volume Survey (SERVS): The Environments of High-z SDSS Quasi-Stellar-Objects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0586","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:a80832da2382e9b15b907907c838c14237cd30a2e476499c0829b4831f663bf0","target":"record","created_at":"2026-05-18T02:02:09Z","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":"4d770e85134e7bf725a2c97693a0a3416a3e35f501a97c9c36113936698d91fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","title_canon_sha256":"97b45c01f5afb121f2f6a37a5d29aef1727ec73dc47f20c473fa2510b9027088"},"schema_version":"1.0","source":{"id":"1105.0586","kind":"arxiv","version":1}},"canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","first_computed_at":"2026-05-18T02:02:09.636406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:09.636406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s+Us0EFe9VAK2bM+YeSVfLkwDCrVlnuyzcN/6Dwa1TNwxUaCaQw9WY6Lz0kEm/6zaPyiK4qzgMqTe4hvxDFqAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:09.637103Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.0586","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a80832da2382e9b15b907907c838c14237cd30a2e476499c0829b4831f663bf0","sha256:bcfd562b5ae6840510162e3378ee8b75e6c09c15f78b3f8ca6c1b88104f68b21"],"state_sha256":"59da029e9bfa08310c6e659a25467aa29628324a2b29338d7fc9e558dbc2be8f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A2GcGj0GOawPu/u7/nOSSs4D8F+irhkfXCaeHcBj+ZOvw+5HSSEba/C1CHBTE86vvkiUwTpFZxDZcTJxx2tsDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T17:50:49.891015Z","bundle_sha256":"7ebc6107f09f03f6fdb58618def762cf6b3188775914f81f5077bcd52ba4e1c4"}}