{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SDEFAJ6MMJZIB6PVLIG67E5F7Q","short_pith_number":"pith:SDEFAJ6M","canonical_record":{"source":{"id":"1812.06979","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-17T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8730bce021f34e9925588f7ba1b22469f9d9c4b1a0ee570f1d935b2094747a4e","abstract_canon_sha256":"b2d200222207726dc4254faeede2ce529d0560f9c03b84402c8f3c7730cd9024"},"schema_version":"1.0"},"canonical_sha256":"90c85027cc627280f9f55a0def93a5fc22b7714578507249ead40ad8e377d40d","source":{"kind":"arxiv","id":"1812.06979","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06979","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06979v4","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06979","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_12","alias_value":"SDEFAJ6MMJZI","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_16","alias_value":"SDEFAJ6MMJZIB6PV","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_8","alias_value":"SDEFAJ6M","created_at":"2026-07-05T00:45:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SDEFAJ6MMJZIB6PVLIG67E5F7Q","target":"record","payload":{"canonical_record":{"source":{"id":"1812.06979","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-17T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8730bce021f34e9925588f7ba1b22469f9d9c4b1a0ee570f1d935b2094747a4e","abstract_canon_sha256":"b2d200222207726dc4254faeede2ce529d0560f9c03b84402c8f3c7730cd9024"},"schema_version":"1.0"},"canonical_sha256":"90c85027cc627280f9f55a0def93a5fc22b7714578507249ead40ad8e377d40d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:45:03.169839Z","signature_b64":"+NKMnQbKiy+C/RraTSs8XrB6k1Q4upra9YJGhI4d1D33o+9tbzwC6FZhoo5i09nXniwy4q5JcJGvD68+JeZzCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90c85027cc627280f9f55a0def93a5fc22b7714578507249ead40ad8e377d40d","last_reissued_at":"2026-07-05T00:45:03.169436Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:45:03.169436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.06979","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:45:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"obaIzUTQNZ9qIxmFZs27zb9WMmvqAXY07Gx8poa7YnTOmhBqSRl4D+9RngbeNw8ir7hEndiMmXEU5Qo3upQQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:51:55.249832Z"},"content_sha256":"a11ff87587d4ba6b3b5def4da38029a9c6b3717382e7d163aecd5896499efb0b","schema_version":"1.0","event_id":"sha256:a11ff87587d4ba6b3b5def4da38029a9c6b3717382e7d163aecd5896499efb0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SDEFAJ6MMJZIB6PVLIG67E5F7Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stellar ages, masses and radii from asteroseismic modeling are robust to systematic errors in spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Amalie Stokholm, Earl P. Bellinger, George C. Angelou, Sarbani Basu, Saskia Hekker","submitted_at":"2018-12-17T19:00:00Z","abstract_excerpt":"The search for twins of the Sun and Earth relies on accurate characterization of stellar and exoplanetary parameters: i.e., ages, masses, and radii. In the modern era of asteroseismology, parameters of solar-like stars are derived by fitting theoretical models to observational data, which include measurements of their oscillation frequencies, metallicity [Fe/H], and effective temperature Teff. Combining this information with transit data furthermore yields the corresponding parameters for their exoplanets. While [Fe/H] and Teff are commonly stated to a precision of ~0.1 dex and ~100 K, the imp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06979","kind":"arxiv","version":4},"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/1812.06979/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":"2026-07-05T00:45:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EfLRhwM+EDXE2ZpT2sIlrwWpWDFlTBnb2YFChmnptknpkK5sBSfDZNtdOvOtG3ojJYnl4Zpbsff9IiuN2wdIDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:51:55.250214Z"},"content_sha256":"60559bb77350b9b0f8b6a002cff29ecd5c39faa8e9ba2f399492c5495b2684b5","schema_version":"1.0","event_id":"sha256:60559bb77350b9b0f8b6a002cff29ecd5c39faa8e9ba2f399492c5495b2684b5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/bundle.json","state_url":"https://pith.science/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/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":"2026-07-07T05:51:55Z","links":{"resolver":"https://pith.science/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q","bundle":"https://pith.science/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/bundle.json","state":"https://pith.science/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDEFAJ6MMJZIB6PVLIG67E5F7Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SDEFAJ6MMJZIB6PVLIG67E5F7Q","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":"b2d200222207726dc4254faeede2ce529d0560f9c03b84402c8f3c7730cd9024","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-17T19:00:00Z","title_canon_sha256":"8730bce021f34e9925588f7ba1b22469f9d9c4b1a0ee570f1d935b2094747a4e"},"schema_version":"1.0","source":{"id":"1812.06979","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06979","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06979v4","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06979","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_12","alias_value":"SDEFAJ6MMJZI","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_16","alias_value":"SDEFAJ6MMJZIB6PV","created_at":"2026-07-05T00:45:03Z"},{"alias_kind":"pith_short_8","alias_value":"SDEFAJ6M","created_at":"2026-07-05T00:45:03Z"}],"graph_snapshots":[{"event_id":"sha256:60559bb77350b9b0f8b6a002cff29ecd5c39faa8e9ba2f399492c5495b2684b5","target":"graph","created_at":"2026-07-05T00:45:03Z","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/1812.06979/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The search for twins of the Sun and Earth relies on accurate characterization of stellar and exoplanetary parameters: i.e., ages, masses, and radii. In the modern era of asteroseismology, parameters of solar-like stars are derived by fitting theoretical models to observational data, which include measurements of their oscillation frequencies, metallicity [Fe/H], and effective temperature Teff. Combining this information with transit data furthermore yields the corresponding parameters for their exoplanets. While [Fe/H] and Teff are commonly stated to a precision of ~0.1 dex and ~100 K, the imp","authors_text":"Amalie Stokholm, Earl P. Bellinger, George C. Angelou, Sarbani Basu, Saskia Hekker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-17T19:00:00Z","title":"Stellar ages, masses and radii from asteroseismic modeling are robust to systematic errors in spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06979","kind":"arxiv","version":4},"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:a11ff87587d4ba6b3b5def4da38029a9c6b3717382e7d163aecd5896499efb0b","target":"record","created_at":"2026-07-05T00:45:03Z","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":"b2d200222207726dc4254faeede2ce529d0560f9c03b84402c8f3c7730cd9024","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-17T19:00:00Z","title_canon_sha256":"8730bce021f34e9925588f7ba1b22469f9d9c4b1a0ee570f1d935b2094747a4e"},"schema_version":"1.0","source":{"id":"1812.06979","kind":"arxiv","version":4}},"canonical_sha256":"90c85027cc627280f9f55a0def93a5fc22b7714578507249ead40ad8e377d40d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90c85027cc627280f9f55a0def93a5fc22b7714578507249ead40ad8e377d40d","first_computed_at":"2026-07-05T00:45:03.169436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:45:03.169436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+NKMnQbKiy+C/RraTSs8XrB6k1Q4upra9YJGhI4d1D33o+9tbzwC6FZhoo5i09nXniwy4q5JcJGvD68+JeZzCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:45:03.169839Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.06979","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a11ff87587d4ba6b3b5def4da38029a9c6b3717382e7d163aecd5896499efb0b","sha256:60559bb77350b9b0f8b6a002cff29ecd5c39faa8e9ba2f399492c5495b2684b5"],"state_sha256":"0d9bf8bc937257b110a3e3a2d68cc11e5616c7e74aff2301ab568485c20fb2b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0exUIHDoiEmqGmjDTCIZquN6mscozYwljUuiuuum/cfGaQ96srzUD8UI0vgQ5VBjvRdkJfMlAiCKa+C92pdrBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:51:55.252392Z","bundle_sha256":"79b53fda934f04d40041a8e3f92e97d6da9c95d465a59833282186d88669f3bc"}}