{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:BYAQ27POTJOGNWAVPMNAXHJNYY","short_pith_number":"pith:BYAQ27PO","canonical_record":{"source":{"id":"astro-ph/0611498","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T21:04:02Z","cross_cats_sorted":[],"title_canon_sha256":"36a3892739685274c56be553f78208f7e42ab149a417aa02752137200ad3b98d","abstract_canon_sha256":"92e92821f1a37c7e465ee64553b76e2b9da2d64e6790e6ca1a0e8a6ed1c2b06b"},"schema_version":"1.0"},"canonical_sha256":"0e010d7dee9a5c66d8157b1a0b9d2dc60edd2f3f9dde4dba6bb920b53bb6aa0b","source":{"kind":"arxiv","id":"astro-ph/0611498","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611498","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611498v2","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611498","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"pith_short_12","alias_value":"BYAQ27POTJOG","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"BYAQ27POTJOGNWAV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"BYAQ27PO","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:BYAQ27POTJOGNWAVPMNAXHJNYY","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0611498","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T21:04:02Z","cross_cats_sorted":[],"title_canon_sha256":"36a3892739685274c56be553f78208f7e42ab149a417aa02752137200ad3b98d","abstract_canon_sha256":"92e92821f1a37c7e465ee64553b76e2b9da2d64e6790e6ca1a0e8a6ed1c2b06b"},"schema_version":"1.0"},"canonical_sha256":"0e010d7dee9a5c66d8157b1a0b9d2dc60edd2f3f9dde4dba6bb920b53bb6aa0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:15.248505Z","signature_b64":"8uSus7Ka0+4JlN6VJr7iO4N8vKhnV2YFJt/UZ27oQ5wZ4mEshTQjmfIMfJtP9bZNl2ggivoP/kBbtQ00eafVAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e010d7dee9a5c66d8157b1a0b9d2dc60edd2f3f9dde4dba6bb920b53bb6aa0b","last_reissued_at":"2026-05-18T04:29:15.247971Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:15.247971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0611498","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":"2026-05-18T04:29:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJMgJDF76ITkqqUsyzHUDV8ksRPQcGNemonQUAF/EDGvDPppHwB5+jTWZp+bERQWArrKjc2uIL7ZMT8MWl75AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:58:53.552996Z"},"content_sha256":"482ba946fd1c3c8bd7c6290eabf53c751ba15d9c836c3ee04ada24aaa077428c","schema_version":"1.0","event_id":"sha256:482ba946fd1c3c8bd7c6290eabf53c751ba15d9c836c3ee04ada24aaa077428c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:BYAQ27POTJOGNWAVPMNAXHJNYY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Lowest Mass White Dwarf","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Carlos Allende Prieto, D. Koester, Mukremin Kilic, Warren R. Brown","submitted_at":"2006-11-15T21:04:02Z","abstract_excerpt":"Extremely low mass white dwarfs are very rare objects likely formed in compact binary systems. We present MMT optical spectroscopy of 42 low mass white dwarf candidates serendipitously discovered in a survey for hypervelocity B-type stars. One of these objects, SDSS J0917+46, has Teff= 11,288 \\pm 72 K and log g = 5.48 \\pm 0.03; with an estimated mass of 0.17 M_sun, it is the lowest gravity/mass white dwarf currently known. However, 40 of the low mass candidates are normal DA white dwarfs with apparently inaccurate SDSS g magnitudes. We revisit the identification of low mass white dwarf candida"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611498","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":"2026-05-18T04:29:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EQwOzxEXAs8YqwxLGTAzTsSQtnIoBn3awgh6gQCgcCkJjA4vUjS1Xcs9xaLCOMxQj+LMmjBp4uMHAaKnz+oBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:58:53.553363Z"},"content_sha256":"fc017fdc96e4d3fec8134719ce8c92a1129bdc13ec3a2821085e7776f9c83d1b","schema_version":"1.0","event_id":"sha256:fc017fdc96e4d3fec8134719ce8c92a1129bdc13ec3a2821085e7776f9c83d1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/bundle.json","state_url":"https://pith.science/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/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":"2026-06-02T03:58:53Z","links":{"resolver":"https://pith.science/pith/BYAQ27POTJOGNWAVPMNAXHJNYY","bundle":"https://pith.science/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/bundle.json","state":"https://pith.science/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BYAQ27POTJOGNWAVPMNAXHJNYY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:BYAQ27POTJOGNWAVPMNAXHJNYY","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":"92e92821f1a37c7e465ee64553b76e2b9da2d64e6790e6ca1a0e8a6ed1c2b06b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T21:04:02Z","title_canon_sha256":"36a3892739685274c56be553f78208f7e42ab149a417aa02752137200ad3b98d"},"schema_version":"1.0","source":{"id":"astro-ph/0611498","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611498","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611498v2","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611498","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"pith_short_12","alias_value":"BYAQ27POTJOG","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"BYAQ27POTJOGNWAV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"BYAQ27PO","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:fc017fdc96e4d3fec8134719ce8c92a1129bdc13ec3a2821085e7776f9c83d1b","target":"graph","created_at":"2026-05-18T04:29:15Z","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":"Extremely low mass white dwarfs are very rare objects likely formed in compact binary systems. We present MMT optical spectroscopy of 42 low mass white dwarf candidates serendipitously discovered in a survey for hypervelocity B-type stars. One of these objects, SDSS J0917+46, has Teff= 11,288 \\pm 72 K and log g = 5.48 \\pm 0.03; with an estimated mass of 0.17 M_sun, it is the lowest gravity/mass white dwarf currently known. However, 40 of the low mass candidates are normal DA white dwarfs with apparently inaccurate SDSS g magnitudes. We revisit the identification of low mass white dwarf candida","authors_text":"Carlos Allende Prieto, D. Koester, Mukremin Kilic, Warren R. Brown","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T21:04:02Z","title":"The Lowest Mass White Dwarf"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611498","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":"sha256:482ba946fd1c3c8bd7c6290eabf53c751ba15d9c836c3ee04ada24aaa077428c","target":"record","created_at":"2026-05-18T04:29:15Z","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":"92e92821f1a37c7e465ee64553b76e2b9da2d64e6790e6ca1a0e8a6ed1c2b06b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T21:04:02Z","title_canon_sha256":"36a3892739685274c56be553f78208f7e42ab149a417aa02752137200ad3b98d"},"schema_version":"1.0","source":{"id":"astro-ph/0611498","kind":"arxiv","version":2}},"canonical_sha256":"0e010d7dee9a5c66d8157b1a0b9d2dc60edd2f3f9dde4dba6bb920b53bb6aa0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e010d7dee9a5c66d8157b1a0b9d2dc60edd2f3f9dde4dba6bb920b53bb6aa0b","first_computed_at":"2026-05-18T04:29:15.247971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:15.247971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8uSus7Ka0+4JlN6VJr7iO4N8vKhnV2YFJt/UZ27oQ5wZ4mEshTQjmfIMfJtP9bZNl2ggivoP/kBbtQ00eafVAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:15.248505Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0611498","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:482ba946fd1c3c8bd7c6290eabf53c751ba15d9c836c3ee04ada24aaa077428c","sha256:fc017fdc96e4d3fec8134719ce8c92a1129bdc13ec3a2821085e7776f9c83d1b"],"state_sha256":"4e112eab5a2627c8e66462a9f615040d5f792d8fd0616f4a0e5305428becbe0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3GS0yiXmZK5eIeUJl3GCzkcxN9Am9Nj9NNX1WJ7hTEM5WuqN5NXzNSEH0GNiOprHl3PXUSgxsTCI979jtmTaCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:58:53.555373Z","bundle_sha256":"f53b5bedd68736faae81e0001993b3ef3aac04f5abf4f222b0495ed8af49ccd3"}}