{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:W6KGAKZ4QJX3QCXYI4GNUKQON6","short_pith_number":"pith:W6KGAKZ4","canonical_record":{"source":{"id":"2605.31052","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-29T09:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"a8ff86125bda2287bb44d17ae76e98c4a4bb4d544ba29852a4448e39b4a0a3b8","abstract_canon_sha256":"7f2b97dc9001198cea696517e256ff83e7e56533f52865c28312f71f509fd386"},"schema_version":"1.0"},"canonical_sha256":"b794602b3c826fb80af8470cda2a0e6fa2b07d71ec53c57fd1c4e58644d35769","source":{"kind":"arxiv","id":"2605.31052","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.31052","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"arxiv_version","alias_value":"2605.31052v1","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.31052","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_12","alias_value":"W6KGAKZ4QJX3","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_16","alias_value":"W6KGAKZ4QJX3QCXY","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_8","alias_value":"W6KGAKZ4","created_at":"2026-06-01T01:03:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:W6KGAKZ4QJX3QCXYI4GNUKQON6","target":"record","payload":{"canonical_record":{"source":{"id":"2605.31052","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-29T09:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"a8ff86125bda2287bb44d17ae76e98c4a4bb4d544ba29852a4448e39b4a0a3b8","abstract_canon_sha256":"7f2b97dc9001198cea696517e256ff83e7e56533f52865c28312f71f509fd386"},"schema_version":"1.0"},"canonical_sha256":"b794602b3c826fb80af8470cda2a0e6fa2b07d71ec53c57fd1c4e58644d35769","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T01:03:33.232151Z","signature_b64":"kusPmll6ow7i96gEjucUXK00wNjQkBOf+Z/WwjG6ayKPdleOU11BO3B5eZCUApPyXaPhdl1NtsUdID34ni/XCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b794602b3c826fb80af8470cda2a0e6fa2b07d71ec53c57fd1c4e58644d35769","last_reissued_at":"2026-06-01T01:03:33.231326Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T01:03:33.231326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.31052","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":"2026-06-01T01:03:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vqt/+Zn+hz9S/xOuRqV9sWheUg3eOVQZd4rQwu2SZAWL4yPPC0onrHmI88WP38ytpfVTKkorKZA8xyob9PLhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:08:22.329774Z"},"content_sha256":"e0c47e83717e21a590f9f7f0091b9943507b019ba6c451f3dc8c31ad615b8a63","schema_version":"1.0","event_id":"sha256:e0c47e83717e21a590f9f7f0091b9943507b019ba6c451f3dc8c31ad615b8a63"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:W6KGAKZ4QJX3QCXYI4GNUKQON6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unveiling the population of massive quenched galaxies at $z\\ge2$ in the COLIBRE simulations -- II. The role of AGN feedback and environment on their emergence","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (2) ARC Centre for All-Sky Astrophysics in 3 Dimensions (ASTRO 3D)), Alejandro Ben\\'itez-Llambay, Alexander J. Richings, \\'Angel Chandro-G\\'omez (1, Australia, Camila Correa, Carlos S. Frenk, Chris Power, Claudia del P. Lagos, Crawley, Evgenii Chaikin, Filip Hu\\v{s}ko, Francesco Valentino ((1) International Centre for Radio Astronomy Research (ICRAR), Harry G. Chittenden, James W. Trayford, Joop Schaye, Kei Ito, Matthieu Schaller, Robert J. McGibbon, Sylvia Ploeckinger, Themiya Nanayakkara, The University of Western Australia, WA, Willian M. Baker","submitted_at":"2026-05-29T09:25:49Z","abstract_excerpt":"Early ($z \\gtrsim 2$) Massive ($M_{\\star} \\gtrsim 10^{10}\\,\\mathrm{M_{\\odot}}$), Quenched Galaxies (MQGs) challenge current galaxy formation models. In this series, we study these systems using the new COLIBRE cosmological hydrodynamical simulations. Following the broad agreement between its predictions and observations found in the first paper, this second paper explores the processes driving galaxies to become massive and quenched in COLIBRE, identifying Active Galactic Nucleus (AGN) feedback as the primary quenching mechanism in both the thermal (L200m6 simulation) and hybrid (thermal+jet, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.31052","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/2605.31052/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":"2026-06-01T01:03:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4SAw6j5IVqNR/Dh7t+I4rsLU1wT15MCeD47DX52o5LF3YcWyd7jKvoctv/0lmOPDzJjprakuA09KNjqhkiVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:08:22.330440Z"},"content_sha256":"5a0305c4de7ac010e4d841c789d9094a745bf28fca0a7f42b61eacdd8bd2a1a4","schema_version":"1.0","event_id":"sha256:5a0305c4de7ac010e4d841c789d9094a745bf28fca0a7f42b61eacdd8bd2a1a4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/bundle.json","state_url":"https://pith.science/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/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":"2026-06-02T10:08:22Z","links":{"resolver":"https://pith.science/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6","bundle":"https://pith.science/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/bundle.json","state":"https://pith.science/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W6KGAKZ4QJX3QCXYI4GNUKQON6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:W6KGAKZ4QJX3QCXYI4GNUKQON6","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":"7f2b97dc9001198cea696517e256ff83e7e56533f52865c28312f71f509fd386","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-29T09:25:49Z","title_canon_sha256":"a8ff86125bda2287bb44d17ae76e98c4a4bb4d544ba29852a4448e39b4a0a3b8"},"schema_version":"1.0","source":{"id":"2605.31052","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.31052","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"arxiv_version","alias_value":"2605.31052v1","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.31052","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_12","alias_value":"W6KGAKZ4QJX3","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_16","alias_value":"W6KGAKZ4QJX3QCXY","created_at":"2026-06-01T01:03:33Z"},{"alias_kind":"pith_short_8","alias_value":"W6KGAKZ4","created_at":"2026-06-01T01:03:33Z"}],"graph_snapshots":[{"event_id":"sha256:5a0305c4de7ac010e4d841c789d9094a745bf28fca0a7f42b61eacdd8bd2a1a4","target":"graph","created_at":"2026-06-01T01:03:33Z","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/2605.31052/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Early ($z \\gtrsim 2$) Massive ($M_{\\star} \\gtrsim 10^{10}\\,\\mathrm{M_{\\odot}}$), Quenched Galaxies (MQGs) challenge current galaxy formation models. In this series, we study these systems using the new COLIBRE cosmological hydrodynamical simulations. Following the broad agreement between its predictions and observations found in the first paper, this second paper explores the processes driving galaxies to become massive and quenched in COLIBRE, identifying Active Galactic Nucleus (AGN) feedback as the primary quenching mechanism in both the thermal (L200m6 simulation) and hybrid (thermal+jet, ","authors_text":"2), (2) ARC Centre for All-Sky Astrophysics in 3 Dimensions (ASTRO 3D)), Alejandro Ben\\'itez-Llambay, Alexander J. Richings, \\'Angel Chandro-G\\'omez (1, Australia, Camila Correa, Carlos S. Frenk, Chris Power, Claudia del P. Lagos, Crawley, Evgenii Chaikin, Filip Hu\\v{s}ko, Francesco Valentino ((1) International Centre for Radio Astronomy Research (ICRAR), Harry G. Chittenden, James W. Trayford, Joop Schaye, Kei Ito, Matthieu Schaller, Robert J. McGibbon, Sylvia Ploeckinger, Themiya Nanayakkara, The University of Western Australia, WA, Willian M. Baker","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-29T09:25:49Z","title":"Unveiling the population of massive quenched galaxies at $z\\ge2$ in the COLIBRE simulations -- II. The role of AGN feedback and environment on their emergence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.31052","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:e0c47e83717e21a590f9f7f0091b9943507b019ba6c451f3dc8c31ad615b8a63","target":"record","created_at":"2026-06-01T01:03:33Z","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":"7f2b97dc9001198cea696517e256ff83e7e56533f52865c28312f71f509fd386","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-29T09:25:49Z","title_canon_sha256":"a8ff86125bda2287bb44d17ae76e98c4a4bb4d544ba29852a4448e39b4a0a3b8"},"schema_version":"1.0","source":{"id":"2605.31052","kind":"arxiv","version":1}},"canonical_sha256":"b794602b3c826fb80af8470cda2a0e6fa2b07d71ec53c57fd1c4e58644d35769","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b794602b3c826fb80af8470cda2a0e6fa2b07d71ec53c57fd1c4e58644d35769","first_computed_at":"2026-06-01T01:03:33.231326Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:03:33.231326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kusPmll6ow7i96gEjucUXK00wNjQkBOf+Z/WwjG6ayKPdleOU11BO3B5eZCUApPyXaPhdl1NtsUdID34ni/XCw==","signature_status":"signed_v1","signed_at":"2026-06-01T01:03:33.232151Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.31052","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0c47e83717e21a590f9f7f0091b9943507b019ba6c451f3dc8c31ad615b8a63","sha256:5a0305c4de7ac010e4d841c789d9094a745bf28fca0a7f42b61eacdd8bd2a1a4"],"state_sha256":"bfb9b70a996ba6911df0354296265fd190cc70de96a0e5a96c77c2808487f4b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jVSpO9YCcMYtd0jTULpEJuX3QFwplp05aqIFz/B65UDXwhFmGzr+ZDC94rqWfNo9xcGEqmAkObFs4uPtJVceCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:08:22.333495Z","bundle_sha256":"8599217df85d2cfbd720de37bab7dd502159158f91c70ae767017d4269fe1884"}}