{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:D7IH3CIYNLPWQR4IOPLEUC6ZAX","short_pith_number":"pith:D7IH3CIY","canonical_record":{"source":{"id":"1809.01673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-05T18:01:42Z","cross_cats_sorted":[],"title_canon_sha256":"aeca51a0e4dafb957ddb2381be17362efd4f7adbe88eae261c1c85e28e3ac11f","abstract_canon_sha256":"f061f66bd7248f083daac3cb2b83221394fa2e88eeb0ef612f9ceea3401255b0"},"schema_version":"1.0"},"canonical_sha256":"1fd07d89186adf68478873d64a0bd905c776545025e2dd63cd6436970c4096c4","source":{"kind":"arxiv","id":"1809.01673","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01673","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01673v1","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01673","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"pith_short_12","alias_value":"D7IH3CIYNLPW","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D7IH3CIYNLPWQR4I","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D7IH3CIY","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:D7IH3CIYNLPWQR4IOPLEUC6ZAX","target":"record","payload":{"canonical_record":{"source":{"id":"1809.01673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-05T18:01:42Z","cross_cats_sorted":[],"title_canon_sha256":"aeca51a0e4dafb957ddb2381be17362efd4f7adbe88eae261c1c85e28e3ac11f","abstract_canon_sha256":"f061f66bd7248f083daac3cb2b83221394fa2e88eeb0ef612f9ceea3401255b0"},"schema_version":"1.0"},"canonical_sha256":"1fd07d89186adf68478873d64a0bd905c776545025e2dd63cd6436970c4096c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:15.042863Z","signature_b64":"eTOB5zPMEVtjC8dFKJhCCDbDpDF/T3AkGgn2IwoiAQHNK3T22oEuVkiyHP2P41iedj8cUwirwfijPan9TWffBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1fd07d89186adf68478873d64a0bd905c776545025e2dd63cd6436970c4096c4","last_reissued_at":"2026-05-18T00:03:15.042244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:15.042244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.01673","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":"2026-05-18T00:03:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h3TfneYhF4d+64/5WfGKBGbX6L59itmX8Z2udAhKx+WQt9B8hnsVNbu4MQk3FgBHcr6Tf4Mckert7mYXF8HjAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:45:44.298724Z"},"content_sha256":"6153614469db7b96b0e9a66de2f7f160f29428c0886266bb5ead9833bd5fde47","schema_version":"1.0","event_id":"sha256:6153614469db7b96b0e9a66de2f7f160f29428c0886266bb5ead9833bd5fde47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:D7IH3CIYNLPWQR4IOPLEUC6ZAX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The White Dwarf Initial-Final Mass Relation for Progenitor Stars From 0.85 to 7.5 M$_\\odot$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Enrico Ramirez-Ruiz, Jason S. Kalirai, Jeffrey D. Cummings, Jieun Choi, P.-E. Tremblay","submitted_at":"2018-09-05T18:01:42Z","abstract_excerpt":"We present the initial-final mass relation (IFMR) based on the self-consistent analysis of Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal on eight white dwarfs previously analyzed in the NGC 2099 cluster field, four of which are consistent with membership. These reobserved white dwarfs have masses ranging from 0.72 to 0.97 M$_\\odot$, with initial masses from 3.0 to 3.65 M$_\\odot$, where the IFMR has an important change in slope that these new data help to observationally confirm. In total, this directly measured IFMR has small scatter ($\\sigma$ = 0."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01673","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":""},"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":"2026-05-18T00:03:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GTzXTeyrCRztEHZgEFlwNJ3ms8DnCl1D/XWkLbRh69aaN8ADtmh+DYwg83t4kVLiSW+NIfXKU8YdQHxy7RT7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:45:44.299399Z"},"content_sha256":"def08ed170a34deed68293e637ab81191dd3330b0a8a9590cde5313971cd78cd","schema_version":"1.0","event_id":"sha256:def08ed170a34deed68293e637ab81191dd3330b0a8a9590cde5313971cd78cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/bundle.json","state_url":"https://pith.science/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/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":"2026-05-25T15:45:44Z","links":{"resolver":"https://pith.science/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX","bundle":"https://pith.science/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/bundle.json","state":"https://pith.science/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D7IH3CIYNLPWQR4IOPLEUC6ZAX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D7IH3CIYNLPWQR4IOPLEUC6ZAX","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":"f061f66bd7248f083daac3cb2b83221394fa2e88eeb0ef612f9ceea3401255b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-05T18:01:42Z","title_canon_sha256":"aeca51a0e4dafb957ddb2381be17362efd4f7adbe88eae261c1c85e28e3ac11f"},"schema_version":"1.0","source":{"id":"1809.01673","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01673","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01673v1","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01673","created_at":"2026-05-18T00:03:15Z"},{"alias_kind":"pith_short_12","alias_value":"D7IH3CIYNLPW","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D7IH3CIYNLPWQR4I","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D7IH3CIY","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:def08ed170a34deed68293e637ab81191dd3330b0a8a9590cde5313971cd78cd","target":"graph","created_at":"2026-05-18T00:03:15Z","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"},"paper":{"abstract_excerpt":"We present the initial-final mass relation (IFMR) based on the self-consistent analysis of Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal on eight white dwarfs previously analyzed in the NGC 2099 cluster field, four of which are consistent with membership. These reobserved white dwarfs have masses ranging from 0.72 to 0.97 M$_\\odot$, with initial masses from 3.0 to 3.65 M$_\\odot$, where the IFMR has an important change in slope that these new data help to observationally confirm. In total, this directly measured IFMR has small scatter ($\\sigma$ = 0.","authors_text":"Enrico Ramirez-Ruiz, Jason S. Kalirai, Jeffrey D. Cummings, Jieun Choi, P.-E. Tremblay","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-05T18:01:42Z","title":"The White Dwarf Initial-Final Mass Relation for Progenitor Stars From 0.85 to 7.5 M$_\\odot$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01673","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":"sha256:6153614469db7b96b0e9a66de2f7f160f29428c0886266bb5ead9833bd5fde47","target":"record","created_at":"2026-05-18T00:03:15Z","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":"f061f66bd7248f083daac3cb2b83221394fa2e88eeb0ef612f9ceea3401255b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-05T18:01:42Z","title_canon_sha256":"aeca51a0e4dafb957ddb2381be17362efd4f7adbe88eae261c1c85e28e3ac11f"},"schema_version":"1.0","source":{"id":"1809.01673","kind":"arxiv","version":1}},"canonical_sha256":"1fd07d89186adf68478873d64a0bd905c776545025e2dd63cd6436970c4096c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1fd07d89186adf68478873d64a0bd905c776545025e2dd63cd6436970c4096c4","first_computed_at":"2026-05-18T00:03:15.042244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:15.042244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eTOB5zPMEVtjC8dFKJhCCDbDpDF/T3AkGgn2IwoiAQHNK3T22oEuVkiyHP2P41iedj8cUwirwfijPan9TWffBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:15.042863Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.01673","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6153614469db7b96b0e9a66de2f7f160f29428c0886266bb5ead9833bd5fde47","sha256:def08ed170a34deed68293e637ab81191dd3330b0a8a9590cde5313971cd78cd"],"state_sha256":"4a66706f36eb44f7cba759476ba4859fb930fb80705d5c7ef5c7c3cc2932cb7b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j/NrOOSQQGDDCrrc4GIUebxU47N9VRN18TsyXgExUnNiunRP3ITMBigAcSoXUhyKeOk42Y0XH9fycT+rq45bBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:45:44.302872Z","bundle_sha256":"4b2a8f0140198c1ffec0503fd6841d9f2e3455404244e9433a1065c0ec3cf1c0"}}