{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:HS3YEW7GOJQAW474WTOEL5OBZ7","short_pith_number":"pith:HS3YEW7G","canonical_record":{"source":{"id":"1709.02324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T16:02:59Z","cross_cats_sorted":[],"title_canon_sha256":"503e345bd0b650df7f963e0bda15c16e5795edfaa767c5c350e7f8fc1f24dba0","abstract_canon_sha256":"9dedd793716d889f807c078fc5c22e7c52965a1606a534ca6cc8b55cb36fe586"},"schema_version":"1.0"},"canonical_sha256":"3cb7825be672600b73fcb4dc45f5c1cfc40e99577f83d7c7b8d008ed18babff4","source":{"kind":"arxiv","id":"1709.02324","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.02324","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"arxiv_version","alias_value":"1709.02324v1","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.02324","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"pith_short_12","alias_value":"HS3YEW7GOJQA","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HS3YEW7GOJQAW474","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HS3YEW7G","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:HS3YEW7GOJQAW474WTOEL5OBZ7","target":"record","payload":{"canonical_record":{"source":{"id":"1709.02324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T16:02:59Z","cross_cats_sorted":[],"title_canon_sha256":"503e345bd0b650df7f963e0bda15c16e5795edfaa767c5c350e7f8fc1f24dba0","abstract_canon_sha256":"9dedd793716d889f807c078fc5c22e7c52965a1606a534ca6cc8b55cb36fe586"},"schema_version":"1.0"},"canonical_sha256":"3cb7825be672600b73fcb4dc45f5c1cfc40e99577f83d7c7b8d008ed18babff4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:39.031088Z","signature_b64":"X+8aBGLZ5b7DUKbQ9iH8FPLwv1aG2Cut2m59/XSBNbuT/qXp2GI14Hca+O6sj0zGjhnsUxhnNIq020fL4496DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3cb7825be672600b73fcb4dc45f5c1cfc40e99577f83d7c7b8d008ed18babff4","last_reissued_at":"2026-05-18T00:32:39.030470Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:39.030470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.02324","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":"2026-05-18T00:32:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PatHtHO0XENGKwf56+/kcR3cEmD6Jc6cObM8EL7he04rhOKX7SSjOS6E+O71atiYrbuMR0RttbKqCPsBspIsBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:48:38.400957Z"},"content_sha256":"04166ce5df83095eb6ca61c3da7e83e80c524937d4c2602e38b117f2bf7d0666","schema_version":"1.0","event_id":"sha256:04166ce5df83095eb6ca61c3da7e83e80c524937d4c2602e38b117f2bf7d0666"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:HS3YEW7GOJQAW474WTOEL5OBZ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurements of Physical Parameters of White Dwarfs: A Test of the Mass-Radius Relation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Antoine B\\'edard, Gilles Fontaine, Pierre Bergeron","submitted_at":"2017-09-07T16:02:59Z","abstract_excerpt":"We present a detailed spectroscopic and photometric analysis of 219 DA and DB white dwarfs for which trigonometric parallax measurements are available. Our aim is to compare the physical parameters derived from the spectroscopic and photometric techniques, and then to test the theoretical mass-radius relation for white dwarfs using these results. The agreement between spectroscopic and photometric parameters is found to be excellent, especially for effective temperatures, showing that our model atmospheres and fitting procedures provide an accurate, internally consistent analysis. Values of su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02324","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":"2026-05-18T00:32:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kOhAaqaXKTm9PbfwDOMgbj1u3zx2VriVHugr8R96u0uGmL/TZHW/W3FZnTWf7APFDFX+uDvMbANFgkJl6n72DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:48:38.401694Z"},"content_sha256":"107a3d7ec6f3acfcc574bf72979373b4562af6fd2b72bb137e38f2701aba554e","schema_version":"1.0","event_id":"sha256:107a3d7ec6f3acfcc574bf72979373b4562af6fd2b72bb137e38f2701aba554e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/bundle.json","state_url":"https://pith.science/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/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":"2026-06-07T22:48:38Z","links":{"resolver":"https://pith.science/pith/HS3YEW7GOJQAW474WTOEL5OBZ7","bundle":"https://pith.science/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/bundle.json","state":"https://pith.science/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HS3YEW7GOJQAW474WTOEL5OBZ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HS3YEW7GOJQAW474WTOEL5OBZ7","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":"9dedd793716d889f807c078fc5c22e7c52965a1606a534ca6cc8b55cb36fe586","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T16:02:59Z","title_canon_sha256":"503e345bd0b650df7f963e0bda15c16e5795edfaa767c5c350e7f8fc1f24dba0"},"schema_version":"1.0","source":{"id":"1709.02324","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.02324","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"arxiv_version","alias_value":"1709.02324v1","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.02324","created_at":"2026-05-18T00:32:39Z"},{"alias_kind":"pith_short_12","alias_value":"HS3YEW7GOJQA","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HS3YEW7GOJQAW474","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HS3YEW7G","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:107a3d7ec6f3acfcc574bf72979373b4562af6fd2b72bb137e38f2701aba554e","target":"graph","created_at":"2026-05-18T00:32:39Z","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 a detailed spectroscopic and photometric analysis of 219 DA and DB white dwarfs for which trigonometric parallax measurements are available. Our aim is to compare the physical parameters derived from the spectroscopic and photometric techniques, and then to test the theoretical mass-radius relation for white dwarfs using these results. The agreement between spectroscopic and photometric parameters is found to be excellent, especially for effective temperatures, showing that our model atmospheres and fitting procedures provide an accurate, internally consistent analysis. Values of su","authors_text":"Antoine B\\'edard, Gilles Fontaine, Pierre Bergeron","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T16:02:59Z","title":"Measurements of Physical Parameters of White Dwarfs: A Test of the Mass-Radius Relation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02324","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":"sha256:04166ce5df83095eb6ca61c3da7e83e80c524937d4c2602e38b117f2bf7d0666","target":"record","created_at":"2026-05-18T00:32:39Z","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":"9dedd793716d889f807c078fc5c22e7c52965a1606a534ca6cc8b55cb36fe586","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-09-07T16:02:59Z","title_canon_sha256":"503e345bd0b650df7f963e0bda15c16e5795edfaa767c5c350e7f8fc1f24dba0"},"schema_version":"1.0","source":{"id":"1709.02324","kind":"arxiv","version":1}},"canonical_sha256":"3cb7825be672600b73fcb4dc45f5c1cfc40e99577f83d7c7b8d008ed18babff4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cb7825be672600b73fcb4dc45f5c1cfc40e99577f83d7c7b8d008ed18babff4","first_computed_at":"2026-05-18T00:32:39.030470Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:39.030470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X+8aBGLZ5b7DUKbQ9iH8FPLwv1aG2Cut2m59/XSBNbuT/qXp2GI14Hca+O6sj0zGjhnsUxhnNIq020fL4496DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:39.031088Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.02324","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:04166ce5df83095eb6ca61c3da7e83e80c524937d4c2602e38b117f2bf7d0666","sha256:107a3d7ec6f3acfcc574bf72979373b4562af6fd2b72bb137e38f2701aba554e"],"state_sha256":"9f486d8cc0d73bc8467b26ad60d8ca0b077f9fe50077c9a2a07663f92c4c10a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nY2yEaBfTGOoTJXV3vUlY6StH7WYUyuQOQb0fnPRTOHh8T+egM0DAyZZ9ch5/fgZH1wxLUvja0eFHaRJ8tFLDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T22:48:38.405773Z","bundle_sha256":"55788156045a927dd5471bfc909022bb7f0c182fe332416f6af0a26c8c8f5523"}}