{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:P76IHHNWCXMQ4VSTVARPX6SEQS","short_pith_number":"pith:P76IHHNW","canonical_record":{"source":{"id":"2403.07060","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-11T18:00:06Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a843191653502a5494cf2e305365802a04161080d9c83f49088b61c7db7ec262","abstract_canon_sha256":"a784739883b6c9edc91adfb976afc42942e60073f323205d8c219fde66a263db"},"schema_version":"1.0"},"canonical_sha256":"7ffc839db615d90e5653a822fbfa4484b87f0b05738e4c2f3e99e215418da3e1","source":{"kind":"arxiv","id":"2403.07060","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.07060","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"2403.07060v1","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.07060","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"P76IHHNWCXMQ","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_16","alias_value":"P76IHHNWCXMQ4VST","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_8","alias_value":"P76IHHNW","created_at":"2026-07-05T07:54:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:P76IHHNWCXMQ4VSTVARPX6SEQS","target":"record","payload":{"canonical_record":{"source":{"id":"2403.07060","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-11T18:00:06Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a843191653502a5494cf2e305365802a04161080d9c83f49088b61c7db7ec262","abstract_canon_sha256":"a784739883b6c9edc91adfb976afc42942e60073f323205d8c219fde66a263db"},"schema_version":"1.0"},"canonical_sha256":"7ffc839db615d90e5653a822fbfa4484b87f0b05738e4c2f3e99e215418da3e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:54:58.617147Z","signature_b64":"3j0Ukly/nzmDJMo5u90iVfZ9FZeds60Qxh2TDOV0q+Lrq3PM9nsrAuQ7exOhbNJdWQnBxTCjmApYpcmNiY4nCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ffc839db615d90e5653a822fbfa4484b87f0b05738e4c2f3e99e215418da3e1","last_reissued_at":"2026-07-05T07:54:58.616630Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:54:58.616630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.07060","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":"2026-07-05T07:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U2mITKrBgOWzGvc2iW+pkYDK0Ugg58/yINZe3ESi60uhkmQn7It56ABzOo2uC7aJ2j1CEUS96wif+oh/v21oDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:45:34.747869Z"},"content_sha256":"c4890ae3e54583b75d5de542556b4ae8bc310ca0532aaab2d769d03306d59873","schema_version":"1.0","event_id":"sha256:c4890ae3e54583b75d5de542556b4ae8bc310ca0532aaab2d769d03306d59873"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:P76IHHNWCXMQ4VSTVARPX6SEQS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scrutinising evidence for the triggering of Active Galactic Nuclei in the outskirts of massive galaxy clusters at $z\\approx1$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Andrea Lapi, \\'Angel Ruiz, Antonis Georgakakis, Cristina Ramos Almeida, Elias Koulouridis, Francesco Shankar, Iv\\'an Mu\\~noz Rodr\\'iguez, Johan Comparat, Silvia Bonoli","submitted_at":"2024-03-11T18:00:06Z","abstract_excerpt":"Environmental effects are believed to play an important yet poorly understood role in triggering accretion events onto the supermassive black holes (SMBHs) of galaxies (Active Galactic Nuclei; AGN). Massive clusters, which represent the densest structures in the Universe, provide an excellent laboratory to isolate environmental effects and study their impact on black hole growth. In this work, we critically review observational evidence for the preferential activation of SMBHs in the outskirts of galaxy clusters. We develop a semi-empirical model under the assumption that the incidence of AGN "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.07060","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/2403.07060/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":"2026-07-05T07:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wJ2zkSlYoFVmo5yHG+wFXqCfBwsINRXrAxTxVl+6s1DaQuw73ASBBdSua6Odiuwb1PIEUN4fULI6GxR3lm9dAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:45:34.748458Z"},"content_sha256":"e64c5363a70d59bb8461b53007158eaae2f1b4e58a6b4385a372bf633d91252e","schema_version":"1.0","event_id":"sha256:e64c5363a70d59bb8461b53007158eaae2f1b4e58a6b4385a372bf633d91252e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/bundle.json","state_url":"https://pith.science/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/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":"2026-08-05T20:45:34Z","links":{"resolver":"https://pith.science/pith/P76IHHNWCXMQ4VSTVARPX6SEQS","bundle":"https://pith.science/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/bundle.json","state":"https://pith.science/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P76IHHNWCXMQ4VSTVARPX6SEQS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:P76IHHNWCXMQ4VSTVARPX6SEQS","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":"a784739883b6c9edc91adfb976afc42942e60073f323205d8c219fde66a263db","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-11T18:00:06Z","title_canon_sha256":"a843191653502a5494cf2e305365802a04161080d9c83f49088b61c7db7ec262"},"schema_version":"1.0","source":{"id":"2403.07060","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.07060","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"2403.07060v1","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.07060","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"P76IHHNWCXMQ","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_16","alias_value":"P76IHHNWCXMQ4VST","created_at":"2026-07-05T07:54:58Z"},{"alias_kind":"pith_short_8","alias_value":"P76IHHNW","created_at":"2026-07-05T07:54:58Z"}],"graph_snapshots":[{"event_id":"sha256:e64c5363a70d59bb8461b53007158eaae2f1b4e58a6b4385a372bf633d91252e","target":"graph","created_at":"2026-07-05T07:54:58Z","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/2403.07060/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Environmental effects are believed to play an important yet poorly understood role in triggering accretion events onto the supermassive black holes (SMBHs) of galaxies (Active Galactic Nuclei; AGN). Massive clusters, which represent the densest structures in the Universe, provide an excellent laboratory to isolate environmental effects and study their impact on black hole growth. In this work, we critically review observational evidence for the preferential activation of SMBHs in the outskirts of galaxy clusters. We develop a semi-empirical model under the assumption that the incidence of AGN ","authors_text":"Andrea Lapi, \\'Angel Ruiz, Antonis Georgakakis, Cristina Ramos Almeida, Elias Koulouridis, Francesco Shankar, Iv\\'an Mu\\~noz Rodr\\'iguez, Johan Comparat, Silvia Bonoli","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-11T18:00:06Z","title":"Scrutinising evidence for the triggering of Active Galactic Nuclei in the outskirts of massive galaxy clusters at $z\\approx1$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.07060","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:c4890ae3e54583b75d5de542556b4ae8bc310ca0532aaab2d769d03306d59873","target":"record","created_at":"2026-07-05T07:54:58Z","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":"a784739883b6c9edc91adfb976afc42942e60073f323205d8c219fde66a263db","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-11T18:00:06Z","title_canon_sha256":"a843191653502a5494cf2e305365802a04161080d9c83f49088b61c7db7ec262"},"schema_version":"1.0","source":{"id":"2403.07060","kind":"arxiv","version":1}},"canonical_sha256":"7ffc839db615d90e5653a822fbfa4484b87f0b05738e4c2f3e99e215418da3e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ffc839db615d90e5653a822fbfa4484b87f0b05738e4c2f3e99e215418da3e1","first_computed_at":"2026-07-05T07:54:58.616630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:54:58.616630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3j0Ukly/nzmDJMo5u90iVfZ9FZeds60Qxh2TDOV0q+Lrq3PM9nsrAuQ7exOhbNJdWQnBxTCjmApYpcmNiY4nCg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:54:58.617147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.07060","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4890ae3e54583b75d5de542556b4ae8bc310ca0532aaab2d769d03306d59873","sha256:e64c5363a70d59bb8461b53007158eaae2f1b4e58a6b4385a372bf633d91252e"],"state_sha256":"034a0d98ea22621ee2422f149fe4bfb3dbc733b455d60bf86df6197db7564502"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XiH+2/ujxMBbgWibWv7xQJ71k0FKdDqsgyn3KWTEXs6P/SoPWmwLjAabHVw/kmx1sSk10ZWVSkCX0DevLqmKDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T20:45:34.754053Z","bundle_sha256":"da2d51d8eb40852b5a3262fc5458b4451e6689d61431daef04314ce4fe321e1f"}}