{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:BDSHYD3ZVK57RZYLMPP3JNJGVL","short_pith_number":"pith:BDSHYD3Z","canonical_record":{"source":{"id":"0710.1010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-10-04T13:48:14Z","cross_cats_sorted":[],"title_canon_sha256":"5314cc5b40b364f86d88e39f54c035e43a32197197541d855b95f9feebf2da22","abstract_canon_sha256":"6db905fa839115864c595e4719efe2d58f06df006489b7c2a3c312db02570bd0"},"schema_version":"1.0"},"canonical_sha256":"08e47c0f79aabbf8e70b63dfb4b526aae3fa4f29f64b3c1f16d8c76d48ee363e","source":{"kind":"arxiv","id":"0710.1010","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.1010","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"arxiv_version","alias_value":"0710.1010v1","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1010","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_12","alias_value":"BDSHYD3ZVK57","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_16","alias_value":"BDSHYD3ZVK57RZYL","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_8","alias_value":"BDSHYD3Z","created_at":"2026-07-04T15:24:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:BDSHYD3ZVK57RZYLMPP3JNJGVL","target":"record","payload":{"canonical_record":{"source":{"id":"0710.1010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-10-04T13:48:14Z","cross_cats_sorted":[],"title_canon_sha256":"5314cc5b40b364f86d88e39f54c035e43a32197197541d855b95f9feebf2da22","abstract_canon_sha256":"6db905fa839115864c595e4719efe2d58f06df006489b7c2a3c312db02570bd0"},"schema_version":"1.0"},"canonical_sha256":"08e47c0f79aabbf8e70b63dfb4b526aae3fa4f29f64b3c1f16d8c76d48ee363e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:44.654876Z","signature_b64":"IpYQXUIMJAXasWNt/HkXX4MfkokR7FO4LxUQVzr08lYuJXVF7wp8YSSD/NHkXQ4PSE5R9hMIT7LzPMIUtQIjDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08e47c0f79aabbf8e70b63dfb4b526aae3fa4f29f64b3c1f16d8c76d48ee363e","last_reissued_at":"2026-07-04T15:24:44.654479Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:44.654479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0710.1010","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":"2026-07-04T15:24:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aW9A53n4ny1O079ZzTffv4oucZPzy5kJLpybsBJaUWRjk/TjFNGx/JNFimGl1MMVutsRYeCDmzCJGHToGjq9CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:28:55.517670Z"},"content_sha256":"905049ef9082bf922d6399ede9b17cf99e203dadf8bdf48cd410fc2ced00ad78","schema_version":"1.0","event_id":"sha256:905049ef9082bf922d6399ede9b17cf99e203dadf8bdf48cd410fc2ced00ad78"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:BDSHYD3ZVK57RZYLMPP3JNJGVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Binaries at Low Metallicity: ranges for case A, B and C mass transfer","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"O.R. Pols, S.-C. Yoon, S.E. de Mink","submitted_at":"2007-10-04T13:48:14Z","abstract_excerpt":"The evolution of single stars at low metallicity has attracted a large interest, while the effect of metallicity on binary evolution remains still relatively unexplored. We study the effect of metallicity on the number of binary systems that undergo different cases of mass transfer. We find that binaries at low metallicity are more likely to start transferring mass after the onset of central helium burning, often referred to as case C mass transfer. In other words, the donor star in a metal poor binary is more likely to have formed a massive CO core before the onset of mass transfer.\n  At sola"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1010","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/0710.1010/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":"2026-07-04T15:24:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"743ahqN+CuUXkJRSv016lWdQyRVYQxR5mkEFTJsg6XQDq0BFHOFhQIJDOM8IFPePbO1UXjemtGq9CEn7ugP8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:28:55.518048Z"},"content_sha256":"d212db46a7c727fa3c4716146acddf7089fd1acfe85e16ac426938093115243a","schema_version":"1.0","event_id":"sha256:d212db46a7c727fa3c4716146acddf7089fd1acfe85e16ac426938093115243a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/bundle.json","state_url":"https://pith.science/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/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":"2026-08-03T16:28:55Z","links":{"resolver":"https://pith.science/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL","bundle":"https://pith.science/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/bundle.json","state":"https://pith.science/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BDSHYD3ZVK57RZYLMPP3JNJGVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:BDSHYD3ZVK57RZYLMPP3JNJGVL","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":"6db905fa839115864c595e4719efe2d58f06df006489b7c2a3c312db02570bd0","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-10-04T13:48:14Z","title_canon_sha256":"5314cc5b40b364f86d88e39f54c035e43a32197197541d855b95f9feebf2da22"},"schema_version":"1.0","source":{"id":"0710.1010","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.1010","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"arxiv_version","alias_value":"0710.1010v1","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1010","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_12","alias_value":"BDSHYD3ZVK57","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_16","alias_value":"BDSHYD3ZVK57RZYL","created_at":"2026-07-04T15:24:44Z"},{"alias_kind":"pith_short_8","alias_value":"BDSHYD3Z","created_at":"2026-07-04T15:24:44Z"}],"graph_snapshots":[{"event_id":"sha256:d212db46a7c727fa3c4716146acddf7089fd1acfe85e16ac426938093115243a","target":"graph","created_at":"2026-07-04T15:24:44Z","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/0710.1010/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The evolution of single stars at low metallicity has attracted a large interest, while the effect of metallicity on binary evolution remains still relatively unexplored. We study the effect of metallicity on the number of binary systems that undergo different cases of mass transfer. We find that binaries at low metallicity are more likely to start transferring mass after the onset of central helium burning, often referred to as case C mass transfer. In other words, the donor star in a metal poor binary is more likely to have formed a massive CO core before the onset of mass transfer.\n  At sola","authors_text":"O.R. Pols, S.-C. Yoon, S.E. de Mink","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-10-04T13:48:14Z","title":"Binaries at Low Metallicity: ranges for case A, B and C mass transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1010","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":"sha256:905049ef9082bf922d6399ede9b17cf99e203dadf8bdf48cd410fc2ced00ad78","target":"record","created_at":"2026-07-04T15:24:44Z","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":"6db905fa839115864c595e4719efe2d58f06df006489b7c2a3c312db02570bd0","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-10-04T13:48:14Z","title_canon_sha256":"5314cc5b40b364f86d88e39f54c035e43a32197197541d855b95f9feebf2da22"},"schema_version":"1.0","source":{"id":"0710.1010","kind":"arxiv","version":1}},"canonical_sha256":"08e47c0f79aabbf8e70b63dfb4b526aae3fa4f29f64b3c1f16d8c76d48ee363e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08e47c0f79aabbf8e70b63dfb4b526aae3fa4f29f64b3c1f16d8c76d48ee363e","first_computed_at":"2026-07-04T15:24:44.654479Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:44.654479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IpYQXUIMJAXasWNt/HkXX4MfkokR7FO4LxUQVzr08lYuJXVF7wp8YSSD/NHkXQ4PSE5R9hMIT7LzPMIUtQIjDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:44.654876Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.1010","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:905049ef9082bf922d6399ede9b17cf99e203dadf8bdf48cd410fc2ced00ad78","sha256:d212db46a7c727fa3c4716146acddf7089fd1acfe85e16ac426938093115243a"],"state_sha256":"196350ac85a72995135dc66bf1f5900891055f665882014861b4a987f4f77822"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LuxUxUciaPzUhQxV4tBjnlzFKSmqSoGzRy49INNhgkV0uwExZfaQc2VU4/cshzNF46aVu07ROL8pd/P9EV5QBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:28:55.520939Z","bundle_sha256":"80c9a272cbe79ae1a327ffd6325e65daa07924e205dde252964b5a7448389cda"}}