{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:CEMK7CDMWOH6UXUVYKDNGVVUEH","short_pith_number":"pith:CEMK7CDM","canonical_record":{"source":{"id":"2008.11132","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-08-25T16:04:22Z","cross_cats_sorted":[],"title_canon_sha256":"8b03c6155e230c9fb8b44c5d1f2702e284d702f0789f735046193ee9f03faee9","abstract_canon_sha256":"2bcafec28715aaac6a85a4cc2c1047a65b32998d9a8c2e89f645e7bbcedd5625"},"schema_version":"1.0"},"canonical_sha256":"1118af886cb38fea5e95c286d356b421c510eeebfa4b3abdba4cd3f2983399e1","source":{"kind":"arxiv","id":"2008.11132","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.11132","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"arxiv_version","alias_value":"2008.11132v1","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.11132","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_12","alias_value":"CEMK7CDMWOH6","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_16","alias_value":"CEMK7CDMWOH6UXUV","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_8","alias_value":"CEMK7CDM","created_at":"2026-07-05T01:30:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:CEMK7CDMWOH6UXUVYKDNGVVUEH","target":"record","payload":{"canonical_record":{"source":{"id":"2008.11132","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-08-25T16:04:22Z","cross_cats_sorted":[],"title_canon_sha256":"8b03c6155e230c9fb8b44c5d1f2702e284d702f0789f735046193ee9f03faee9","abstract_canon_sha256":"2bcafec28715aaac6a85a4cc2c1047a65b32998d9a8c2e89f645e7bbcedd5625"},"schema_version":"1.0"},"canonical_sha256":"1118af886cb38fea5e95c286d356b421c510eeebfa4b3abdba4cd3f2983399e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:30:14.546869Z","signature_b64":"pGUH31Y0qKDY3FmjWQBQI8tUkonGAzeSb++vFxqqAF7gQqbGq/gjprk6yBpce7upeF2VGirb0W85TjEQ4X0XBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1118af886cb38fea5e95c286d356b421c510eeebfa4b3abdba4cd3f2983399e1","last_reissued_at":"2026-07-05T01:30:14.546404Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:30:14.546404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.11132","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":"2026-07-05T01:30:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WoNSqgcp7EdK/WsK3E11AzVz7nFkJf053XSm4oLmF9qNI079dxC0XWNlzQIBZ1dgoapDca5bLbGGGlaBpsy1DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:41:01.963972Z"},"content_sha256":"657dfc5516577cfa853a568c08e36c5529e36241d193978f6f4dfdd2bd117369","schema_version":"1.0","event_id":"sha256:657dfc5516577cfa853a568c08e36c5529e36241d193978f6f4dfdd2bd117369"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:CEMK7CDMWOH6UXUVYKDNGVVUEH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiple AGN activity during the BCG assembly of XDCPJ0044.0-2033 at z~1.6","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Bongiorno, A. Nastasi, A. Travascio, E. Merlin, E. Piconcelli, F. De Gasperin, F. Duras, F. Fiore, G. Vietri, L. Zappacosta, M. Bischetti, N. Menci, P. Mazzotta, P. Tozzi, R. Fassbender, V. F. Cardone","submitted_at":"2020-08-25T16:04:22Z","abstract_excerpt":"Undisturbed galaxy clusters are characterized by a massive and large elliptical galaxy at their center, i.e. the Brightest Cluster Galaxy (BCG). How these central galaxies form is still debated. According to most models, a typical epoch for their assembly is z~1-2. We have performed a detailed multi-wavelength analysis of the core of XDCPJ0044.0-2033 (XDCP0044), one of the most massive and densest galaxy clusters currently known at redshift z~1.6, whose central galaxy population shows high star formation compared to lower-z clusters and an X-ray AGN located close to its center. SINFONI J-, H- "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.11132","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/2008.11132/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":"2026-07-05T01:30:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OwSjBmbSudww0DE5opY29o5QivTB1XL1l2vWiHVgilnBL+z5mwhuXkx7hcNK8jz3st2yHLBMAts+azoquIsxDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:41:01.964394Z"},"content_sha256":"e10f4b14135ca3891bd83f785d145b67de0e8c640341279e3377d7571ea8210c","schema_version":"1.0","event_id":"sha256:e10f4b14135ca3891bd83f785d145b67de0e8c640341279e3377d7571ea8210c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/bundle.json","state_url":"https://pith.science/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/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":"2026-08-03T16:41:01Z","links":{"resolver":"https://pith.science/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH","bundle":"https://pith.science/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/bundle.json","state":"https://pith.science/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CEMK7CDMWOH6UXUVYKDNGVVUEH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:CEMK7CDMWOH6UXUVYKDNGVVUEH","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":"2bcafec28715aaac6a85a4cc2c1047a65b32998d9a8c2e89f645e7bbcedd5625","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-08-25T16:04:22Z","title_canon_sha256":"8b03c6155e230c9fb8b44c5d1f2702e284d702f0789f735046193ee9f03faee9"},"schema_version":"1.0","source":{"id":"2008.11132","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.11132","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"arxiv_version","alias_value":"2008.11132v1","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.11132","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_12","alias_value":"CEMK7CDMWOH6","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_16","alias_value":"CEMK7CDMWOH6UXUV","created_at":"2026-07-05T01:30:14Z"},{"alias_kind":"pith_short_8","alias_value":"CEMK7CDM","created_at":"2026-07-05T01:30:14Z"}],"graph_snapshots":[{"event_id":"sha256:e10f4b14135ca3891bd83f785d145b67de0e8c640341279e3377d7571ea8210c","target":"graph","created_at":"2026-07-05T01:30:14Z","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/2008.11132/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Undisturbed galaxy clusters are characterized by a massive and large elliptical galaxy at their center, i.e. the Brightest Cluster Galaxy (BCG). How these central galaxies form is still debated. According to most models, a typical epoch for their assembly is z~1-2. We have performed a detailed multi-wavelength analysis of the core of XDCPJ0044.0-2033 (XDCP0044), one of the most massive and densest galaxy clusters currently known at redshift z~1.6, whose central galaxy population shows high star formation compared to lower-z clusters and an X-ray AGN located close to its center. SINFONI J-, H- ","authors_text":"A. Bongiorno, A. Nastasi, A. Travascio, E. Merlin, E. Piconcelli, F. De Gasperin, F. Duras, F. Fiore, G. Vietri, L. Zappacosta, M. Bischetti, N. Menci, P. Mazzotta, P. Tozzi, R. Fassbender, V. F. Cardone","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-08-25T16:04:22Z","title":"Multiple AGN activity during the BCG assembly of XDCPJ0044.0-2033 at z~1.6"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.11132","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":"sha256:657dfc5516577cfa853a568c08e36c5529e36241d193978f6f4dfdd2bd117369","target":"record","created_at":"2026-07-05T01:30:14Z","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":"2bcafec28715aaac6a85a4cc2c1047a65b32998d9a8c2e89f645e7bbcedd5625","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-08-25T16:04:22Z","title_canon_sha256":"8b03c6155e230c9fb8b44c5d1f2702e284d702f0789f735046193ee9f03faee9"},"schema_version":"1.0","source":{"id":"2008.11132","kind":"arxiv","version":1}},"canonical_sha256":"1118af886cb38fea5e95c286d356b421c510eeebfa4b3abdba4cd3f2983399e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1118af886cb38fea5e95c286d356b421c510eeebfa4b3abdba4cd3f2983399e1","first_computed_at":"2026-07-05T01:30:14.546404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:30:14.546404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pGUH31Y0qKDY3FmjWQBQI8tUkonGAzeSb++vFxqqAF7gQqbGq/gjprk6yBpce7upeF2VGirb0W85TjEQ4X0XBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:30:14.546869Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.11132","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:657dfc5516577cfa853a568c08e36c5529e36241d193978f6f4dfdd2bd117369","sha256:e10f4b14135ca3891bd83f785d145b67de0e8c640341279e3377d7571ea8210c"],"state_sha256":"f59464bd35ab7219d3bc3a66dad7c0470b8f1025f49bdcff719f9dfe255ea7ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r9rJDsvcphsVtc3qosW/H0v6APLSK9IPntM8pGvPXEbVcN/PZwL87m9keg5P+Dik7I8tFbf0iW3SmydyYVHIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:41:01.966762Z","bundle_sha256":"1aceed9c0fdeecc809f929114b7eef6c9c1d314b785c839ad28c0f5d975d26ac"}}