{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:RADFGSI7VNMPDJ3ZUI6OYGXNMZ","short_pith_number":"pith:RADFGSI7","canonical_record":{"source":{"id":"1502.07076","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-25T07:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"b1a08ad9f3eeabc6707bec2b2a5b0a5e5464eb57931eaa53af411ea9f200c009","abstract_canon_sha256":"abc9618c40d67a08b85c35057cf4e15a8d1a9f4181db71a56bb88cacfe423868"},"schema_version":"1.0"},"canonical_sha256":"880653491fab58f1a779a23cec1aed666dd877332988e26a2ff1f1cbe9b1faa0","source":{"kind":"arxiv","id":"1502.07076","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07076","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07076v2","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07076","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"pith_short_12","alias_value":"RADFGSI7VNMP","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RADFGSI7VNMPDJ3Z","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RADFGSI7","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:RADFGSI7VNMPDJ3ZUI6OYGXNMZ","target":"record","payload":{"canonical_record":{"source":{"id":"1502.07076","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-25T07:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"b1a08ad9f3eeabc6707bec2b2a5b0a5e5464eb57931eaa53af411ea9f200c009","abstract_canon_sha256":"abc9618c40d67a08b85c35057cf4e15a8d1a9f4181db71a56bb88cacfe423868"},"schema_version":"1.0"},"canonical_sha256":"880653491fab58f1a779a23cec1aed666dd877332988e26a2ff1f1cbe9b1faa0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:07.850966Z","signature_b64":"PcCjKBzKZplsItL8UwxVtLteWmuxZUjGM6tpkhqTTQ2UJ4j3eNnP+YZSzRJsC8bZjBFB8GuoMJffHuSLOPz9Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"880653491fab58f1a779a23cec1aed666dd877332988e26a2ff1f1cbe9b1faa0","last_reissued_at":"2026-05-18T02:02:07.850209Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:07.850209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.07076","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0+bXN6UKk7yapYcE20iygNIckCj8vOdPewKvTNd95AxZ2cb0YrdE8A3Phrfqg71nwJSjjZbJCX9Om3dhXFc5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:22:45.740149Z"},"content_sha256":"4706fe9b0bf184d91e80a428da2e75e3b3f4a2484b190f58a90f7ce6bdf704af","schema_version":"1.0","event_id":"sha256:4706fe9b0bf184d91e80a428da2e75e3b3f4a2484b190f58a90f7ce6bdf704af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:RADFGSI7VNMPDJ3ZUI6OYGXNMZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Black hole accretion versus star formation rate: theory confronts observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Fabio Governato, Hagai Netzer, Jillian Bellovary, Marta Volonteri, Massimo Dotti, Pedro R. Capelo","submitted_at":"2015-02-25T07:56:18Z","abstract_excerpt":"We use a suite of hydrodynamical simulations of galaxy mergers to compare star formation rate (SFR) and black hole accretion rate (BHAR) for galaxies before the interaction ('stochastic' phase), during the `merger' proper, lasting ~0.2-0.3 Gyr, and in the `remnant' phase. We calculate the bi-variate distribution of SFR and BHAR and define the regions in the SFR-BHAR plane that the three phases occupy. No strong correlation between BHAR and galaxy-wide SFR is found. A possible exception are galaxies with the highest SFR and the highest BHAR. We also bin the data in the same way used in several "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07076","kind":"arxiv","version":2},"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":"2026-05-18T02:02:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xhr4BzfsnYK3CGARgPdR7gb24F7OHmi06WZkfKtVreIqOaWmtKoE6JsKufH5aatF2kO6aw9nRm8gxmCgui41Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:22:45.740759Z"},"content_sha256":"5d5dced8ca6ff57f685f17bf68688953206015903e84483950b6f3aa1d528312","schema_version":"1.0","event_id":"sha256:5d5dced8ca6ff57f685f17bf68688953206015903e84483950b6f3aa1d528312"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/bundle.json","state_url":"https://pith.science/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/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":"2026-05-25T15:22:45Z","links":{"resolver":"https://pith.science/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ","bundle":"https://pith.science/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/bundle.json","state":"https://pith.science/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RADFGSI7VNMPDJ3ZUI6OYGXNMZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:RADFGSI7VNMPDJ3ZUI6OYGXNMZ","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":"abc9618c40d67a08b85c35057cf4e15a8d1a9f4181db71a56bb88cacfe423868","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-25T07:56:18Z","title_canon_sha256":"b1a08ad9f3eeabc6707bec2b2a5b0a5e5464eb57931eaa53af411ea9f200c009"},"schema_version":"1.0","source":{"id":"1502.07076","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07076","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07076v2","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07076","created_at":"2026-05-18T02:02:07Z"},{"alias_kind":"pith_short_12","alias_value":"RADFGSI7VNMP","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RADFGSI7VNMPDJ3Z","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RADFGSI7","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:5d5dced8ca6ff57f685f17bf68688953206015903e84483950b6f3aa1d528312","target":"graph","created_at":"2026-05-18T02:02:07Z","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 use a suite of hydrodynamical simulations of galaxy mergers to compare star formation rate (SFR) and black hole accretion rate (BHAR) for galaxies before the interaction ('stochastic' phase), during the `merger' proper, lasting ~0.2-0.3 Gyr, and in the `remnant' phase. We calculate the bi-variate distribution of SFR and BHAR and define the regions in the SFR-BHAR plane that the three phases occupy. No strong correlation between BHAR and galaxy-wide SFR is found. A possible exception are galaxies with the highest SFR and the highest BHAR. We also bin the data in the same way used in several ","authors_text":"Fabio Governato, Hagai Netzer, Jillian Bellovary, Marta Volonteri, Massimo Dotti, Pedro R. Capelo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-25T07:56:18Z","title":"Black hole accretion versus star formation rate: theory confronts observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07076","kind":"arxiv","version":2},"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":"sha256:4706fe9b0bf184d91e80a428da2e75e3b3f4a2484b190f58a90f7ce6bdf704af","target":"record","created_at":"2026-05-18T02:02:07Z","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":"abc9618c40d67a08b85c35057cf4e15a8d1a9f4181db71a56bb88cacfe423868","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-25T07:56:18Z","title_canon_sha256":"b1a08ad9f3eeabc6707bec2b2a5b0a5e5464eb57931eaa53af411ea9f200c009"},"schema_version":"1.0","source":{"id":"1502.07076","kind":"arxiv","version":2}},"canonical_sha256":"880653491fab58f1a779a23cec1aed666dd877332988e26a2ff1f1cbe9b1faa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"880653491fab58f1a779a23cec1aed666dd877332988e26a2ff1f1cbe9b1faa0","first_computed_at":"2026-05-18T02:02:07.850209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:07.850209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PcCjKBzKZplsItL8UwxVtLteWmuxZUjGM6tpkhqTTQ2UJ4j3eNnP+YZSzRJsC8bZjBFB8GuoMJffHuSLOPz9Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:07.850966Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07076","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4706fe9b0bf184d91e80a428da2e75e3b3f4a2484b190f58a90f7ce6bdf704af","sha256:5d5dced8ca6ff57f685f17bf68688953206015903e84483950b6f3aa1d528312"],"state_sha256":"5bb625e48ad497e1b86315357f57b1784133c286cded893d39783aeeed4d8738"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8V3+a9vdATbiQ7dTNZ8Slr07Wo5uOKeAt9gHTNOMdhJXBxH42iM124e/fPtm2YRPJiIyQEqZP6WDQwhkliZJAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:22:45.743870Z","bundle_sha256":"9a9ad8842abe7cd18c0d4aa95043611296ed94cb9cfd24864531155dfa0a9058"}}