{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:YGHG7FCCB3XQZIL7RABXA3AGXT","short_pith_number":"pith:YGHG7FCC","canonical_record":{"source":{"id":"2207.04592","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-07-11T02:50:20Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b8aaf84b28b8dfa9587fa49e518b1058e373fb561ee54151eedaba4a5f03df35","abstract_canon_sha256":"a15fe53e5a94b51a59e6ddbfc4e50851c14332c90c7c266c6c7bd97330933861"},"schema_version":"1.0"},"canonical_sha256":"c18e6f94420eef0ca17f8803706c06bcd4ab0712054e4a1d21b65c29b70a7014","source":{"kind":"arxiv","id":"2207.04592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.04592","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"2207.04592v1","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.04592","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"YGHG7FCCB3XQ","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_16","alias_value":"YGHG7FCCB3XQZIL7","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_8","alias_value":"YGHG7FCC","created_at":"2026-07-05T04:48:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:YGHG7FCCB3XQZIL7RABXA3AGXT","target":"record","payload":{"canonical_record":{"source":{"id":"2207.04592","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-07-11T02:50:20Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b8aaf84b28b8dfa9587fa49e518b1058e373fb561ee54151eedaba4a5f03df35","abstract_canon_sha256":"a15fe53e5a94b51a59e6ddbfc4e50851c14332c90c7c266c6c7bd97330933861"},"schema_version":"1.0"},"canonical_sha256":"c18e6f94420eef0ca17f8803706c06bcd4ab0712054e4a1d21b65c29b70a7014","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:48:58.640747Z","signature_b64":"z0SKqeUaZuDCHOe6HWsfHhPaMPiqBF+oxbyxrABWQis+AYMeeGdjz33pS0SVTyK19JgJWEyb93zyPzPNVoHMBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c18e6f94420eef0ca17f8803706c06bcd4ab0712054e4a1d21b65c29b70a7014","last_reissued_at":"2026-07-05T04:48:58.640326Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:48:58.640326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.04592","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":"2026-07-05T04:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"natD9hQ8DdA34WXcig1pW7KZnL6MGP96M9Bp67ceGu0c+m8B/aNX+Xvd+vgxhiJ6YwKAUkXkA4gaP1SufLAwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T20:05:08.195560Z"},"content_sha256":"d8d3306e915100cbcfdbdbbfd7aadda079d28efc8058aa703d4f1394364769fb","schema_version":"1.0","event_id":"sha256:d8d3306e915100cbcfdbdbbfd7aadda079d28efc8058aa703d4f1394364769fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:YGHG7FCCB3XQZIL7RABXA3AGXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolution of AM CVn binaries with WD donors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Hai-Liang Chen, Xuefei Chen, Zhanwen Han","submitted_at":"2022-07-11T02:50:20Z","abstract_excerpt":"The evolution and stability of mass transfer of CO+He WD binaries are not well understood. Observationally they may emerge as AM CVn binaries and are important gravitational wave (GW) emitters. In this work, we have modeled the evolution of double WD binaries with accretor masses of $0.50 - 1.30\\;M_{\\odot}$ and donor masses of $0.17\\; - 0.45\\;M_{\\odot}$ using the detailed stellar evolution code MESA. We find that the evolution of binaries with same donor masses but different accretor masses is very similar and binaries with same accretor masses but larger He donor masses have larger maximum ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.04592","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/2207.04592/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":"2026-07-05T04:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AWwlq5zX2ocNT9KUOvivfwZTrR8haB3oPf1Gjc3AGo3OnrUIxf5ffZWiPUOnImJJScjiQpJREtbyDIE97NI8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T20:05:08.196064Z"},"content_sha256":"b00ddcd03d5cdd1386b787c97eecc8a9943bc528982488e56f45678ca42b0cb5","schema_version":"1.0","event_id":"sha256:b00ddcd03d5cdd1386b787c97eecc8a9943bc528982488e56f45678ca42b0cb5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/bundle.json","state_url":"https://pith.science/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/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":"2026-08-09T20:05:08Z","links":{"resolver":"https://pith.science/pith/YGHG7FCCB3XQZIL7RABXA3AGXT","bundle":"https://pith.science/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/bundle.json","state":"https://pith.science/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGHG7FCCB3XQZIL7RABXA3AGXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:YGHG7FCCB3XQZIL7RABXA3AGXT","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":"a15fe53e5a94b51a59e6ddbfc4e50851c14332c90c7c266c6c7bd97330933861","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-07-11T02:50:20Z","title_canon_sha256":"b8aaf84b28b8dfa9587fa49e518b1058e373fb561ee54151eedaba4a5f03df35"},"schema_version":"1.0","source":{"id":"2207.04592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.04592","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"2207.04592v1","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.04592","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"YGHG7FCCB3XQ","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_16","alias_value":"YGHG7FCCB3XQZIL7","created_at":"2026-07-05T04:48:58Z"},{"alias_kind":"pith_short_8","alias_value":"YGHG7FCC","created_at":"2026-07-05T04:48:58Z"}],"graph_snapshots":[{"event_id":"sha256:b00ddcd03d5cdd1386b787c97eecc8a9943bc528982488e56f45678ca42b0cb5","target":"graph","created_at":"2026-07-05T04:48:58Z","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/2207.04592/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The evolution and stability of mass transfer of CO+He WD binaries are not well understood. Observationally they may emerge as AM CVn binaries and are important gravitational wave (GW) emitters. In this work, we have modeled the evolution of double WD binaries with accretor masses of $0.50 - 1.30\\;M_{\\odot}$ and donor masses of $0.17\\; - 0.45\\;M_{\\odot}$ using the detailed stellar evolution code MESA. We find that the evolution of binaries with same donor masses but different accretor masses is very similar and binaries with same accretor masses but larger He donor masses have larger maximum ma","authors_text":"Hai-Liang Chen, Xuefei Chen, Zhanwen Han","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-07-11T02:50:20Z","title":"Evolution of AM CVn binaries with WD donors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.04592","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:d8d3306e915100cbcfdbdbbfd7aadda079d28efc8058aa703d4f1394364769fb","target":"record","created_at":"2026-07-05T04:48:58Z","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":"a15fe53e5a94b51a59e6ddbfc4e50851c14332c90c7c266c6c7bd97330933861","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-07-11T02:50:20Z","title_canon_sha256":"b8aaf84b28b8dfa9587fa49e518b1058e373fb561ee54151eedaba4a5f03df35"},"schema_version":"1.0","source":{"id":"2207.04592","kind":"arxiv","version":1}},"canonical_sha256":"c18e6f94420eef0ca17f8803706c06bcd4ab0712054e4a1d21b65c29b70a7014","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c18e6f94420eef0ca17f8803706c06bcd4ab0712054e4a1d21b65c29b70a7014","first_computed_at":"2026-07-05T04:48:58.640326Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:48:58.640326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z0SKqeUaZuDCHOe6HWsfHhPaMPiqBF+oxbyxrABWQis+AYMeeGdjz33pS0SVTyK19JgJWEyb93zyPzPNVoHMBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:48:58.640747Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.04592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8d3306e915100cbcfdbdbbfd7aadda079d28efc8058aa703d4f1394364769fb","sha256:b00ddcd03d5cdd1386b787c97eecc8a9943bc528982488e56f45678ca42b0cb5"],"state_sha256":"e907b11ff24e8af8a2282cd58babee4437b57cefb61f0206d371f7da563ef491"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zOBxo1fJWo8GSAbgDeS1ABieMhO5jLj+eNBck0uXo30blPCceh9tMwGhQ/Kg1tf3Hf/tYl0hr5ZzguQzY/qFAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T20:05:08.200805Z","bundle_sha256":"2b20736bb1c74bc21229c255be1d69e1a4b3ed4dca6b235f3d9a730863d03847"}}