{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:EG2SP2FAKL7PTBBT3UCUWZE57J","short_pith_number":"pith:EG2SP2FA","canonical_record":{"source":{"id":"1903.00083","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-28T22:05:36Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"90a7ae61e12b8320b977a28230f6f1ac46463ab8f98f1df51bab1582ab18afa5","abstract_canon_sha256":"11559e222c39e9616c699d821b448b239175283fe17e5bb895fea04b283f1bbc"},"schema_version":"1.0"},"canonical_sha256":"21b527e8a052fef98433dd054b649dfa409807493cfa85b09b6a01d986093d3d","source":{"kind":"arxiv","id":"1903.00083","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00083","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00083v2","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00083","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"pith_short_12","alias_value":"EG2SP2FAKL7P","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EG2SP2FAKL7PTBBT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EG2SP2FA","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:EG2SP2FAKL7PTBBT3UCUWZE57J","target":"record","payload":{"canonical_record":{"source":{"id":"1903.00083","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-28T22:05:36Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"90a7ae61e12b8320b977a28230f6f1ac46463ab8f98f1df51bab1582ab18afa5","abstract_canon_sha256":"11559e222c39e9616c699d821b448b239175283fe17e5bb895fea04b283f1bbc"},"schema_version":"1.0"},"canonical_sha256":"21b527e8a052fef98433dd054b649dfa409807493cfa85b09b6a01d986093d3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:55.124218Z","signature_b64":"UMNf2XbExxYG/DD5UsckOvw77sf0d2QgiOw39RtfBnZli6Kj63Rvd0elHBX0X3s4lhnPunAp8fbn7ZbNFx4tBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21b527e8a052fef98433dd054b649dfa409807493cfa85b09b6a01d986093d3d","last_reissued_at":"2026-05-17T23:44:55.123659Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:55.123659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.00083","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":"2026-05-17T23:44:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CUYaCwfaA+ilMwu/8yKC8kId33sdOZANShUmZEeWaO1HogCu+RSZUwDNaQ9xTxBXPoQbpIW79PRTSQT31EnXAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:56:00.163057Z"},"content_sha256":"dbab189cc593ea9095f21fa3f585b42e4c41cb8d0f6b24a3d9a6c35fb46ae1c1","schema_version":"1.0","event_id":"sha256:dbab189cc593ea9095f21fa3f585b42e4c41cb8d0f6b24a3d9a6c35fb46ae1c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:EG2SP2FAKL7PTBBT3UCUWZE57J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Host galaxies of merging compact objects: mass, star formation rate, metallicity and colours","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Alessandro Bressan, Filippo Santoliquido, Mario Spera, M. Celeste Artale, Michela Mapelli, Nadeen B. Sabha, Nicola Giacobbo","submitted_at":"2019-02-28T22:05:36Z","abstract_excerpt":"Characterizing the properties of the host galaxies of merging compact objects provides essential clues to interpret current and future gravitational-wave detections. Here, we investigate the stellar mass, star formation rate (SFR), metallicity and colours of the host galaxies of merging compact objects in the local Universe, by combining the results of MOBSE population-synthesis models together with galaxy catalogs from the EAGLE simulation. We predict that the stellar mass of the host galaxy is an excellent tracer of the merger rate per galaxy ${\\rm n}_{\\rm GW}$ of double neutron stars (DNSs)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00083","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":"2026-05-17T23:44:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Db4R9K4mAY8egp4318a06twEfZYT64SEalwnfyh3FFIRaprg2Stms7V8YuUzm51o8QZJxTU/hCXrGlC+yOJzBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:56:00.163578Z"},"content_sha256":"0037d71c7391ce544621849a2e712abf29f6ea466b90954e6a593e059a9c106a","schema_version":"1.0","event_id":"sha256:0037d71c7391ce544621849a2e712abf29f6ea466b90954e6a593e059a9c106a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/bundle.json","state_url":"https://pith.science/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/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":"2026-05-26T02:56:00Z","links":{"resolver":"https://pith.science/pith/EG2SP2FAKL7PTBBT3UCUWZE57J","bundle":"https://pith.science/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/bundle.json","state":"https://pith.science/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EG2SP2FAKL7PTBBT3UCUWZE57J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EG2SP2FAKL7PTBBT3UCUWZE57J","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":"11559e222c39e9616c699d821b448b239175283fe17e5bb895fea04b283f1bbc","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-28T22:05:36Z","title_canon_sha256":"90a7ae61e12b8320b977a28230f6f1ac46463ab8f98f1df51bab1582ab18afa5"},"schema_version":"1.0","source":{"id":"1903.00083","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00083","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00083v2","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00083","created_at":"2026-05-17T23:44:55Z"},{"alias_kind":"pith_short_12","alias_value":"EG2SP2FAKL7P","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EG2SP2FAKL7PTBBT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EG2SP2FA","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:0037d71c7391ce544621849a2e712abf29f6ea466b90954e6a593e059a9c106a","target":"graph","created_at":"2026-05-17T23:44:55Z","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":"Characterizing the properties of the host galaxies of merging compact objects provides essential clues to interpret current and future gravitational-wave detections. Here, we investigate the stellar mass, star formation rate (SFR), metallicity and colours of the host galaxies of merging compact objects in the local Universe, by combining the results of MOBSE population-synthesis models together with galaxy catalogs from the EAGLE simulation. We predict that the stellar mass of the host galaxy is an excellent tracer of the merger rate per galaxy ${\\rm n}_{\\rm GW}$ of double neutron stars (DNSs)","authors_text":"Alessandro Bressan, Filippo Santoliquido, Mario Spera, M. Celeste Artale, Michela Mapelli, Nadeen B. Sabha, Nicola Giacobbo","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-28T22:05:36Z","title":"Host galaxies of merging compact objects: mass, star formation rate, metallicity and colours"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00083","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:dbab189cc593ea9095f21fa3f585b42e4c41cb8d0f6b24a3d9a6c35fb46ae1c1","target":"record","created_at":"2026-05-17T23:44:55Z","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":"11559e222c39e9616c699d821b448b239175283fe17e5bb895fea04b283f1bbc","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-28T22:05:36Z","title_canon_sha256":"90a7ae61e12b8320b977a28230f6f1ac46463ab8f98f1df51bab1582ab18afa5"},"schema_version":"1.0","source":{"id":"1903.00083","kind":"arxiv","version":2}},"canonical_sha256":"21b527e8a052fef98433dd054b649dfa409807493cfa85b09b6a01d986093d3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21b527e8a052fef98433dd054b649dfa409807493cfa85b09b6a01d986093d3d","first_computed_at":"2026-05-17T23:44:55.123659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:55.123659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UMNf2XbExxYG/DD5UsckOvw77sf0d2QgiOw39RtfBnZli6Kj63Rvd0elHBX0X3s4lhnPunAp8fbn7ZbNFx4tBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:55.124218Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.00083","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbab189cc593ea9095f21fa3f585b42e4c41cb8d0f6b24a3d9a6c35fb46ae1c1","sha256:0037d71c7391ce544621849a2e712abf29f6ea466b90954e6a593e059a9c106a"],"state_sha256":"21c14bc4147f5b663c8b3ac67c46d6ecdf0225e1a171bf37e54dd31697885c23"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S/+9Ic433pkWpBuHvwfYmTf1XVo53xqfmNsdgCDeNSv3cdsW1/NxzhrG853RR18Nd63kvsaj3ym1sf909RksBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:56:00.166365Z","bundle_sha256":"ce8383fb69c503d1f3e2f0649480faa2f3b94c320b9ffa24c25ba21de9496107"}}