{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:5BNFJ3IUCQ7WROP63AIDTJDZNU","short_pith_number":"pith:5BNFJ3IU","canonical_record":{"source":{"id":"1102.2440","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-11T21:00:05Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"a2c58e0f2f099e00a68a0e21204ab5c6a5aa7991665c3daee15c43a6d27f9cd1","abstract_canon_sha256":"a38c5f2e3d747d9983c4188a9076fa8d50ad5720bfd1ab187c173da380a9a60f"},"schema_version":"1.0"},"canonical_sha256":"e85a54ed14143f68b9fed81039a4796d272feba308b823a3cdcc12fb7ece2e28","source":{"kind":"arxiv","id":"1102.2440","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.2440","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"arxiv_version","alias_value":"1102.2440v2","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.2440","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"pith_short_12","alias_value":"5BNFJ3IUCQ7W","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5BNFJ3IUCQ7WROP6","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5BNFJ3IU","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:5BNFJ3IUCQ7WROP63AIDTJDZNU","target":"record","payload":{"canonical_record":{"source":{"id":"1102.2440","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-11T21:00:05Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"a2c58e0f2f099e00a68a0e21204ab5c6a5aa7991665c3daee15c43a6d27f9cd1","abstract_canon_sha256":"a38c5f2e3d747d9983c4188a9076fa8d50ad5720bfd1ab187c173da380a9a60f"},"schema_version":"1.0"},"canonical_sha256":"e85a54ed14143f68b9fed81039a4796d272feba308b823a3cdcc12fb7ece2e28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:11.863360Z","signature_b64":"Df6J5ItOwf15sYRCK7SlvNhGNKHlmPFg695dwzIPAEjapIHsL0wrfyxJamqc3h/8LuZ/RymieQIKUxYDnld5AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e85a54ed14143f68b9fed81039a4796d272feba308b823a3cdcc12fb7ece2e28","last_reissued_at":"2026-05-18T02:03:11.862716Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:11.862716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.2440","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":"2026-05-18T02:03:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ileTxg/gzHcau9Pr1nm9KI/OxrwgQEB36WjtngERDQwflZvosfdPNsXJ9VS+GPK6Sfl7CiXEWC4MLHNVxvlMCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:35:02.185239Z"},"content_sha256":"1669c6196da238e01405dc85c456cebd472dc0a1aaf09113f34e68a9fbdf6b47","schema_version":"1.0","event_id":"sha256:1669c6196da238e01405dc85c456cebd472dc0a1aaf09113f34e68a9fbdf6b47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:5BNFJ3IUCQ7WROP63AIDTJDZNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Evolution of Cataclysmic Variables as Revealed by their Donor Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Christian Knigge (University of Southampton), Isabelle Baraffe (University of Exeter), Joseph Patterson (Columbia University)","submitted_at":"2011-02-11T21:00:05Z","abstract_excerpt":"We reconstruct the evolutionary path followed by cataclysmic variables (CVs) from the observed mass-radius relationship of their donor stars. Along the way, we update the semi-empirical CV donor sequence of Knigge (2006) and present a comprehensive review of the link between CV evolution and donor physics. After calibrating state-of-the art stellar models for use in the CV setting, we fit self-consistent theoretical evolution sequences to the observed donor masses and radii. In the standard model of CV evolution, AML below the period gap is assumed to be driven solely by gravitational radiatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.2440","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":"2026-05-18T02:03:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wt9G6w/EDJ38b1p2iTiX1D6bwjDgAbisohzbJljIzUtbFUtEc4r+Exi2ExHI02+1ycc4fQxrQPSNuD6zncY8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:35:02.185660Z"},"content_sha256":"25fedc1e6c9a13ebf99789b0a4fead05f896cc3f861747ce8e6fc8f62723e593","schema_version":"1.0","event_id":"sha256:25fedc1e6c9a13ebf99789b0a4fead05f896cc3f861747ce8e6fc8f62723e593"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/bundle.json","state_url":"https://pith.science/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/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":"2026-06-01T21:35:02Z","links":{"resolver":"https://pith.science/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU","bundle":"https://pith.science/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/bundle.json","state":"https://pith.science/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5BNFJ3IUCQ7WROP63AIDTJDZNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:5BNFJ3IUCQ7WROP63AIDTJDZNU","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":"a38c5f2e3d747d9983c4188a9076fa8d50ad5720bfd1ab187c173da380a9a60f","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-11T21:00:05Z","title_canon_sha256":"a2c58e0f2f099e00a68a0e21204ab5c6a5aa7991665c3daee15c43a6d27f9cd1"},"schema_version":"1.0","source":{"id":"1102.2440","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.2440","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"arxiv_version","alias_value":"1102.2440v2","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.2440","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"pith_short_12","alias_value":"5BNFJ3IUCQ7W","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5BNFJ3IUCQ7WROP6","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5BNFJ3IU","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:25fedc1e6c9a13ebf99789b0a4fead05f896cc3f861747ce8e6fc8f62723e593","target":"graph","created_at":"2026-05-18T02:03:11Z","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 reconstruct the evolutionary path followed by cataclysmic variables (CVs) from the observed mass-radius relationship of their donor stars. Along the way, we update the semi-empirical CV donor sequence of Knigge (2006) and present a comprehensive review of the link between CV evolution and donor physics. After calibrating state-of-the art stellar models for use in the CV setting, we fit self-consistent theoretical evolution sequences to the observed donor masses and radii. In the standard model of CV evolution, AML below the period gap is assumed to be driven solely by gravitational radiatio","authors_text":"Christian Knigge (University of Southampton), Isabelle Baraffe (University of Exeter), Joseph Patterson (Columbia University)","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-11T21:00:05Z","title":"The Evolution of Cataclysmic Variables as Revealed by their Donor Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.2440","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":"sha256:1669c6196da238e01405dc85c456cebd472dc0a1aaf09113f34e68a9fbdf6b47","target":"record","created_at":"2026-05-18T02:03:11Z","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":"a38c5f2e3d747d9983c4188a9076fa8d50ad5720bfd1ab187c173da380a9a60f","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-11T21:00:05Z","title_canon_sha256":"a2c58e0f2f099e00a68a0e21204ab5c6a5aa7991665c3daee15c43a6d27f9cd1"},"schema_version":"1.0","source":{"id":"1102.2440","kind":"arxiv","version":2}},"canonical_sha256":"e85a54ed14143f68b9fed81039a4796d272feba308b823a3cdcc12fb7ece2e28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e85a54ed14143f68b9fed81039a4796d272feba308b823a3cdcc12fb7ece2e28","first_computed_at":"2026-05-18T02:03:11.862716Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:11.862716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Df6J5ItOwf15sYRCK7SlvNhGNKHlmPFg695dwzIPAEjapIHsL0wrfyxJamqc3h/8LuZ/RymieQIKUxYDnld5AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:11.863360Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.2440","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1669c6196da238e01405dc85c456cebd472dc0a1aaf09113f34e68a9fbdf6b47","sha256:25fedc1e6c9a13ebf99789b0a4fead05f896cc3f861747ce8e6fc8f62723e593"],"state_sha256":"6d06576ecc396e7e28895f92f115fb47793e25fda340421fd1995b301a6e95c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SZlVSu2cb0TNvEbQ8OhHCPDG5yPSdO4GPvuIe6GwgKIXCdPbW3TuPmrPOY6sUwzK/mhfHjpkARJz0yecYY2OBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:35:02.187865Z","bundle_sha256":"a2faf9ed33c943d6b7fe50b9e28bb4f513e56bf75719a43b98c05d14b061664c"}}