{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:WB2PTLCM2S7PF7PR5WMNOA4WZN","short_pith_number":"pith:WB2PTLCM","canonical_record":{"source":{"id":"2310.19866","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-10-30T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8f4246e72bbd379a8ce9506547ab0081f2482f37ad082e4c3249b24cb5fc9247","abstract_canon_sha256":"410a4b201c872ef2120ddf345b583b4dc9ffb08927c053ae3bff073594dbd1de"},"schema_version":"1.0"},"canonical_sha256":"b074f9ac4cd4bef2fdf1ed98d70396cb6287052e466bda7e0eb44c863d151237","source":{"kind":"arxiv","id":"2310.19866","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.19866","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"2310.19866v1","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.19866","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"WB2PTLCM2S7P","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_16","alias_value":"WB2PTLCM2S7PF7PR","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_8","alias_value":"WB2PTLCM","created_at":"2026-07-05T07:07:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:WB2PTLCM2S7PF7PR5WMNOA4WZN","target":"record","payload":{"canonical_record":{"source":{"id":"2310.19866","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-10-30T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8f4246e72bbd379a8ce9506547ab0081f2482f37ad082e4c3249b24cb5fc9247","abstract_canon_sha256":"410a4b201c872ef2120ddf345b583b4dc9ffb08927c053ae3bff073594dbd1de"},"schema_version":"1.0"},"canonical_sha256":"b074f9ac4cd4bef2fdf1ed98d70396cb6287052e466bda7e0eb44c863d151237","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:07:20.809169Z","signature_b64":"IutfS3bzIsz+5sjq6O6GGlkcyYF1ChxGJjoJ7cTg7XrOBi7luLs3FhJN/q4ahVqoLyZW+w4yFUsg76NwUgOlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b074f9ac4cd4bef2fdf1ed98d70396cb6287052e466bda7e0eb44c863d151237","last_reissued_at":"2026-07-05T07:07:20.808746Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:07:20.808746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2310.19866","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":"2026-07-05T07:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yONYlyuMXxwOvHaLYUN8aAuLsHBowUYkQp1AdyZ3MVRlAmdj7oRluIZaivT2s6Vr41bsNXwHJ7OsCRNlE88oDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:20:25.890755Z"},"content_sha256":"a0aa1dbdfc2a8f19e6c97f1d899faaba1282635c8dcaf37074f02eef5f3c3069","schema_version":"1.0","event_id":"sha256:a0aa1dbdfc2a8f19e6c97f1d899faaba1282635c8dcaf37074f02eef5f3c3069"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:WB2PTLCM2S7PF7PR5WMNOA4WZN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring The Mass-Radius Relation of White Dwarfs Using Wide Binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Boris T. Gaensicke, Gautham Adamane Pallathadka, Hans-Walter Rix, Hsiang-Chih Hwang, J.J. Hermes, Joel R. Brownstein, Kareem El-Badry, Keivan G. Stassun, Nadia L. Zakamska, Nicole R. Crumpler, Sean Morrison, Stefan Arseneau, Vedant Chandra","submitted_at":"2023-10-30T18:00:00Z","abstract_excerpt":"Measuring the mass-radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass-radius relation using gravitational redshifts and radii of 137 white dwarfs in wide binaries with main sequence companions. We obtain the space velocities to these systems using the main sequence companion, and subtract these Doppler redshifts from the white dwarfs' apparent motions, isolating their gravitational redshifts. We use Gaia data to calculate the surface temperatures and radii of these white dwarfs, there"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.19866","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/2310.19866/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":"2026-07-05T07:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"teBQRjDiMTccjK11pVWkNTUycE8xRs3UPBHoM++bqnV/bm8yI3/8Fd9Os3O++fJkyxlU8ke2y0RWAIi4okERDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:20:25.891132Z"},"content_sha256":"0f8ec7a0ede9727b4afbca66bd7c1885ea623dca9e385d5ea0ab4352955c722f","schema_version":"1.0","event_id":"sha256:0f8ec7a0ede9727b4afbca66bd7c1885ea623dca9e385d5ea0ab4352955c722f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/bundle.json","state_url":"https://pith.science/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/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":"2026-07-07T10:20:25Z","links":{"resolver":"https://pith.science/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN","bundle":"https://pith.science/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/bundle.json","state":"https://pith.science/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WB2PTLCM2S7PF7PR5WMNOA4WZN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:WB2PTLCM2S7PF7PR5WMNOA4WZN","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":"410a4b201c872ef2120ddf345b583b4dc9ffb08927c053ae3bff073594dbd1de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-10-30T18:00:00Z","title_canon_sha256":"8f4246e72bbd379a8ce9506547ab0081f2482f37ad082e4c3249b24cb5fc9247"},"schema_version":"1.0","source":{"id":"2310.19866","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.19866","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"2310.19866v1","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.19866","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"WB2PTLCM2S7P","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_16","alias_value":"WB2PTLCM2S7PF7PR","created_at":"2026-07-05T07:07:20Z"},{"alias_kind":"pith_short_8","alias_value":"WB2PTLCM","created_at":"2026-07-05T07:07:20Z"}],"graph_snapshots":[{"event_id":"sha256:0f8ec7a0ede9727b4afbca66bd7c1885ea623dca9e385d5ea0ab4352955c722f","target":"graph","created_at":"2026-07-05T07:07:20Z","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/2310.19866/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measuring the mass-radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass-radius relation using gravitational redshifts and radii of 137 white dwarfs in wide binaries with main sequence companions. We obtain the space velocities to these systems using the main sequence companion, and subtract these Doppler redshifts from the white dwarfs' apparent motions, isolating their gravitational redshifts. We use Gaia data to calculate the surface temperatures and radii of these white dwarfs, there","authors_text":"Boris T. Gaensicke, Gautham Adamane Pallathadka, Hans-Walter Rix, Hsiang-Chih Hwang, J.J. Hermes, Joel R. Brownstein, Kareem El-Badry, Keivan G. Stassun, Nadia L. Zakamska, Nicole R. Crumpler, Sean Morrison, Stefan Arseneau, Vedant Chandra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-10-30T18:00:00Z","title":"Measuring The Mass-Radius Relation of White Dwarfs Using Wide Binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.19866","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:a0aa1dbdfc2a8f19e6c97f1d899faaba1282635c8dcaf37074f02eef5f3c3069","target":"record","created_at":"2026-07-05T07:07:20Z","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":"410a4b201c872ef2120ddf345b583b4dc9ffb08927c053ae3bff073594dbd1de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-10-30T18:00:00Z","title_canon_sha256":"8f4246e72bbd379a8ce9506547ab0081f2482f37ad082e4c3249b24cb5fc9247"},"schema_version":"1.0","source":{"id":"2310.19866","kind":"arxiv","version":1}},"canonical_sha256":"b074f9ac4cd4bef2fdf1ed98d70396cb6287052e466bda7e0eb44c863d151237","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b074f9ac4cd4bef2fdf1ed98d70396cb6287052e466bda7e0eb44c863d151237","first_computed_at":"2026-07-05T07:07:20.808746Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:07:20.808746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IutfS3bzIsz+5sjq6O6GGlkcyYF1ChxGJjoJ7cTg7XrOBi7luLs3FhJN/q4ahVqoLyZW+w4yFUsg76NwUgOlCw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:07:20.809169Z","signed_message":"canonical_sha256_bytes"},"source_id":"2310.19866","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0aa1dbdfc2a8f19e6c97f1d899faaba1282635c8dcaf37074f02eef5f3c3069","sha256:0f8ec7a0ede9727b4afbca66bd7c1885ea623dca9e385d5ea0ab4352955c722f"],"state_sha256":"a7f246f61435d1e2cdb6677694641c35983fe52d0d8ab5916256f1fc312d50e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mOqnBhR4c1Wo5BwIk0xnCPr3d8CVZ3PUoLtfAo+WZlRpLN2LNTc1mv5soIVtwGZd8Th5zhmokk+iDtZiUvpqAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:20:25.893120Z","bundle_sha256":"ecda0f3a1a2f54752da62003119bcdcd9e7f42270088bc993af112f6ae8575d8"}}