{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:7RXUAOCS3ZVDSDW7QJGEBJNIPR","short_pith_number":"pith:7RXUAOCS","canonical_record":{"source":{"id":"2303.00508","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-02-28T04:42:29Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"title_canon_sha256":"f2aeddf43550141deaa3577fc5cc5eeb3f494c29fd90c709c6d83aa411fd60b9","abstract_canon_sha256":"2b3c102171a176971105e5b8f760347e9f8dd29694f87f104c053e31a910fdee"},"schema_version":"1.0"},"canonical_sha256":"fc6f403852de6a390edf824c40a5a87c51942169f54d2027a5f43cd089787dcc","source":{"kind":"arxiv","id":"2303.00508","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.00508","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"arxiv_version","alias_value":"2303.00508v2","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.00508","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_12","alias_value":"7RXUAOCS3ZVD","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_16","alias_value":"7RXUAOCS3ZVDSDW7","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_8","alias_value":"7RXUAOCS","created_at":"2026-07-05T06:25:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:7RXUAOCS3ZVDSDW7QJGEBJNIPR","target":"record","payload":{"canonical_record":{"source":{"id":"2303.00508","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-02-28T04:42:29Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"title_canon_sha256":"f2aeddf43550141deaa3577fc5cc5eeb3f494c29fd90c709c6d83aa411fd60b9","abstract_canon_sha256":"2b3c102171a176971105e5b8f760347e9f8dd29694f87f104c053e31a910fdee"},"schema_version":"1.0"},"canonical_sha256":"fc6f403852de6a390edf824c40a5a87c51942169f54d2027a5f43cd089787dcc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:25:21.412151Z","signature_b64":"uiCnsWpt/wb1P9tl7D/juofpfex36g/a3TVNjUeIOs4Kb6mkJ5bSBi3MeUPJKi+z3YQo+a20JC790+xcISvEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc6f403852de6a390edf824c40a5a87c51942169f54d2027a5f43cd089787dcc","last_reissued_at":"2026-07-05T06:25:21.411739Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:25:21.411739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.00508","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":"2026-07-05T06:25:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g/MLDGciZTT2GVfuOD5G3UL2quqcDkuz3bGCcBvUMgUGDRm5tbQFUg6HWuZLGmhVA90XrVTlrFMMSmF/MFLLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:43:00.254096Z"},"content_sha256":"8e5c290247bee9931f35feab62ac65db2564770a559380778a18db3a51d83aba","schema_version":"1.0","event_id":"sha256:8e5c290247bee9931f35feab62ac65db2564770a559380778a18db3a51d83aba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:7RXUAOCS3ZVDSDW7QJGEBJNIPR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surrogate forward models for population inference on compact binary mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"primary_cat":"astro-ph.SR","authors_text":"Ilya Mandel, Jeff Riley","submitted_at":"2023-02-28T04:42:29Z","abstract_excerpt":"Rapidly growing catalogs of compact binary mergers from advanced gravitational-wave detectors allow us to explore the astrophysics of massive stellar binaries. Merger observations can constrain the uncertain parameters that describe the underlying processes in the evolution of stars and binary systems in population models. In this paper, we demonstrate that binary black hole populations - namely, detection rates, chirp masses, and redshifts - can be used to measure cosmological parameters describing the redshift-dependent star formation rate and metallicity distribution. We present a method th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.00508","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.00508/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":"2026-07-05T06:25:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2hKh+ptpahOe7lU9SK6WDEPeOWy48UXxDSNd1jwb3u5KOmeIwb+9oloPRN0C9w/dKWKVKPZB5wJh2GO7imCdDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:43:00.254731Z"},"content_sha256":"d60815e834146cc8b28e706a988cec35a81af46daa8c88c1ebdb2ba7d266a2c9","schema_version":"1.0","event_id":"sha256:d60815e834146cc8b28e706a988cec35a81af46daa8c88c1ebdb2ba7d266a2c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/bundle.json","state_url":"https://pith.science/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/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":"2026-08-07T22:43:00Z","links":{"resolver":"https://pith.science/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR","bundle":"https://pith.science/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/bundle.json","state":"https://pith.science/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7RXUAOCS3ZVDSDW7QJGEBJNIPR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:7RXUAOCS3ZVDSDW7QJGEBJNIPR","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":"2b3c102171a176971105e5b8f760347e9f8dd29694f87f104c053e31a910fdee","cross_cats_sorted":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-02-28T04:42:29Z","title_canon_sha256":"f2aeddf43550141deaa3577fc5cc5eeb3f494c29fd90c709c6d83aa411fd60b9"},"schema_version":"1.0","source":{"id":"2303.00508","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.00508","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"arxiv_version","alias_value":"2303.00508v2","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.00508","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_12","alias_value":"7RXUAOCS3ZVD","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_16","alias_value":"7RXUAOCS3ZVDSDW7","created_at":"2026-07-05T06:25:21Z"},{"alias_kind":"pith_short_8","alias_value":"7RXUAOCS","created_at":"2026-07-05T06:25:21Z"}],"graph_snapshots":[{"event_id":"sha256:d60815e834146cc8b28e706a988cec35a81af46daa8c88c1ebdb2ba7d266a2c9","target":"graph","created_at":"2026-07-05T06:25:21Z","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/2303.00508/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Rapidly growing catalogs of compact binary mergers from advanced gravitational-wave detectors allow us to explore the astrophysics of massive stellar binaries. Merger observations can constrain the uncertain parameters that describe the underlying processes in the evolution of stars and binary systems in population models. In this paper, we demonstrate that binary black hole populations - namely, detection rates, chirp masses, and redshifts - can be used to measure cosmological parameters describing the redshift-dependent star formation rate and metallicity distribution. We present a method th","authors_text":"Ilya Mandel, Jeff Riley","cross_cats":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-02-28T04:42:29Z","title":"Surrogate forward models for population inference on compact binary mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.00508","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":"sha256:8e5c290247bee9931f35feab62ac65db2564770a559380778a18db3a51d83aba","target":"record","created_at":"2026-07-05T06:25:21Z","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":"2b3c102171a176971105e5b8f760347e9f8dd29694f87f104c053e31a910fdee","cross_cats_sorted":["astro-ph.CO","astro-ph.GA","astro-ph.HE","astro-ph.IM","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-02-28T04:42:29Z","title_canon_sha256":"f2aeddf43550141deaa3577fc5cc5eeb3f494c29fd90c709c6d83aa411fd60b9"},"schema_version":"1.0","source":{"id":"2303.00508","kind":"arxiv","version":2}},"canonical_sha256":"fc6f403852de6a390edf824c40a5a87c51942169f54d2027a5f43cd089787dcc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc6f403852de6a390edf824c40a5a87c51942169f54d2027a5f43cd089787dcc","first_computed_at":"2026-07-05T06:25:21.411739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:25:21.411739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uiCnsWpt/wb1P9tl7D/juofpfex36g/a3TVNjUeIOs4Kb6mkJ5bSBi3MeUPJKi+z3YQo+a20JC790+xcISvEAA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:25:21.412151Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.00508","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e5c290247bee9931f35feab62ac65db2564770a559380778a18db3a51d83aba","sha256:d60815e834146cc8b28e706a988cec35a81af46daa8c88c1ebdb2ba7d266a2c9"],"state_sha256":"58cbb9cc59564f5c184f33eee428f8b4239020c60af2733a3aaa091b1200b240"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1OhTge3pXpGPgEUhEdG1HFQdcOmTJOkWMr4glrrglgxlTmW+aOfYRyp6ptoi965Pg49n0/SOHnDS3AlobJdVAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:43:00.259792Z","bundle_sha256":"8b6160434d14eca94130b0e0aa75b7cc39a9eef65665556d98e7f2761219a4a3"}}