{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:SFYD2I4XZXYY6YUEFEBARVXTBZ","short_pith_number":"pith:SFYD2I4X","canonical_record":{"source":{"id":"2105.10516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-21T18:01:19Z","cross_cats_sorted":[],"title_canon_sha256":"aa9b57c063ae2e6a21812227d4ec76f48d359a077314e744e5387e981d30bf56","abstract_canon_sha256":"93dbe52e7f7061bdf5438ce36dcb6418537dee3659b102763fec86faf859dd42"},"schema_version":"1.0"},"canonical_sha256":"91703d2397cdf18f6284290208d6f30e632a937a2f1ae903ee4d6ab93d5fb671","source":{"kind":"arxiv","id":"2105.10516","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.10516","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"arxiv_version","alias_value":"2105.10516v1","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.10516","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_12","alias_value":"SFYD2I4XZXYY","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_16","alias_value":"SFYD2I4XZXYY6YUE","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_8","alias_value":"SFYD2I4X","created_at":"2026-07-05T02:42:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:SFYD2I4XZXYY6YUEFEBARVXTBZ","target":"record","payload":{"canonical_record":{"source":{"id":"2105.10516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-21T18:01:19Z","cross_cats_sorted":[],"title_canon_sha256":"aa9b57c063ae2e6a21812227d4ec76f48d359a077314e744e5387e981d30bf56","abstract_canon_sha256":"93dbe52e7f7061bdf5438ce36dcb6418537dee3659b102763fec86faf859dd42"},"schema_version":"1.0"},"canonical_sha256":"91703d2397cdf18f6284290208d6f30e632a937a2f1ae903ee4d6ab93d5fb671","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:15.281531Z","signature_b64":"pTrhaGQeibwZ5aAdlxy/IG/xFi+O9B1iaQB+7ZL/X66L+wp9mfIgkS/uaVUrYbVRivXVxN1EL5FH6Z5hY5RpAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91703d2397cdf18f6284290208d6f30e632a937a2f1ae903ee4d6ab93d5fb671","last_reissued_at":"2026-07-05T02:42:15.281155Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:15.281155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.10516","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":"2026-07-05T02:42:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e0mcs8AlyPRS+yV1H1zoDWWjX4yDygdTbsEhribNumdYT8x6bi2oh0sY4HhaneZiTN4Du2iWCgEHe0UXK4jMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T09:39:00.784826Z"},"content_sha256":"d8e8c75a8d44ad2f5aa21a8edb0599c61b5f9af2145f50353de1708be2aacb10","schema_version":"1.0","event_id":"sha256:d8e8c75a8d44ad2f5aa21a8edb0599c61b5f9af2145f50353de1708be2aacb10"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:SFYD2I4XZXYY6YUEFEBARVXTBZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chirp mass-distance distributions of the sources of gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Maciej Ossowski","submitted_at":"2021-05-21T18:01:19Z","abstract_excerpt":"The detection of gravitational waves emitted by binary black holes raises questions regarding the origin of binaries. There are several models in the literature involving binary evolution in both the field and clusters. We compare the predictions of these models with observations and establish the reliability of this comparison. We use the likelihood calculation to compare the models in the space spanned by the observed chirp mass and the luminosity distance of the source. We rank the models by their ability to explain all current gravitational wave detections. It is shown that the most probab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.10516","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/2105.10516/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":"2026-07-05T02:42:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TpJFW70vp0JVchKsY9xWmcyY1FYYl0v2NdSDYErH2m6RWy6nz4fLZ3HFSTv+KE0Btrykfc7G/YXuT9QxlS3yAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T09:39:00.785358Z"},"content_sha256":"3199d6fc8b9c979151c05f2d5142ec0a0cbc9a244e47d0352a71e7e8a9c95501","schema_version":"1.0","event_id":"sha256:3199d6fc8b9c979151c05f2d5142ec0a0cbc9a244e47d0352a71e7e8a9c95501"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/bundle.json","state_url":"https://pith.science/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/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":"2026-08-03T09:39:00Z","links":{"resolver":"https://pith.science/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ","bundle":"https://pith.science/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/bundle.json","state":"https://pith.science/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SFYD2I4XZXYY6YUEFEBARVXTBZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SFYD2I4XZXYY6YUEFEBARVXTBZ","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":"93dbe52e7f7061bdf5438ce36dcb6418537dee3659b102763fec86faf859dd42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-21T18:01:19Z","title_canon_sha256":"aa9b57c063ae2e6a21812227d4ec76f48d359a077314e744e5387e981d30bf56"},"schema_version":"1.0","source":{"id":"2105.10516","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.10516","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"arxiv_version","alias_value":"2105.10516v1","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.10516","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_12","alias_value":"SFYD2I4XZXYY","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_16","alias_value":"SFYD2I4XZXYY6YUE","created_at":"2026-07-05T02:42:15Z"},{"alias_kind":"pith_short_8","alias_value":"SFYD2I4X","created_at":"2026-07-05T02:42:15Z"}],"graph_snapshots":[{"event_id":"sha256:3199d6fc8b9c979151c05f2d5142ec0a0cbc9a244e47d0352a71e7e8a9c95501","target":"graph","created_at":"2026-07-05T02:42:15Z","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/2105.10516/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The detection of gravitational waves emitted by binary black holes raises questions regarding the origin of binaries. There are several models in the literature involving binary evolution in both the field and clusters. We compare the predictions of these models with observations and establish the reliability of this comparison. We use the likelihood calculation to compare the models in the space spanned by the observed chirp mass and the luminosity distance of the source. We rank the models by their ability to explain all current gravitational wave detections. It is shown that the most probab","authors_text":"Maciej Ossowski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-21T18:01:19Z","title":"Chirp mass-distance distributions of the sources of gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.10516","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:d8e8c75a8d44ad2f5aa21a8edb0599c61b5f9af2145f50353de1708be2aacb10","target":"record","created_at":"2026-07-05T02:42:15Z","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":"93dbe52e7f7061bdf5438ce36dcb6418537dee3659b102763fec86faf859dd42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-21T18:01:19Z","title_canon_sha256":"aa9b57c063ae2e6a21812227d4ec76f48d359a077314e744e5387e981d30bf56"},"schema_version":"1.0","source":{"id":"2105.10516","kind":"arxiv","version":1}},"canonical_sha256":"91703d2397cdf18f6284290208d6f30e632a937a2f1ae903ee4d6ab93d5fb671","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91703d2397cdf18f6284290208d6f30e632a937a2f1ae903ee4d6ab93d5fb671","first_computed_at":"2026-07-05T02:42:15.281155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:42:15.281155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pTrhaGQeibwZ5aAdlxy/IG/xFi+O9B1iaQB+7ZL/X66L+wp9mfIgkS/uaVUrYbVRivXVxN1EL5FH6Z5hY5RpAg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:42:15.281531Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.10516","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8e8c75a8d44ad2f5aa21a8edb0599c61b5f9af2145f50353de1708be2aacb10","sha256:3199d6fc8b9c979151c05f2d5142ec0a0cbc9a244e47d0352a71e7e8a9c95501"],"state_sha256":"e8819c0e79ceaa8245f42be45b0eab132a96717be170bea9fa1fb661d186924e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8iQrmqSXuIjT4qxK1dKHyJ0bOAIMyY0NSSAKyQbxbb+zOxIf/fAxs1L4Fo+3QoWM/vCwQtz7SKdObvrSuzf9BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T09:39:00.789095Z","bundle_sha256":"201386299e9061bf34b4c78e9ee765130f034a9f754882b4d4201c6b648ffb8b"}}