{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:X33GY6LSOIEYZCW5MG2IDBSR3L","short_pith_number":"pith:X33GY6LS","canonical_record":{"source":{"id":"1805.03526","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-08T01:12:55Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"title_canon_sha256":"df3c94c5de224608874b17bae32c8821187ff410730142ec938837b090584dca","abstract_canon_sha256":"43b48d996bb7faee4abdfed06778f9c429375d4010a2ef343d4dd6079cdb440f"},"schema_version":"1.0"},"canonical_sha256":"bef66c797272098c8add61b4818651daf2c7d416f934c43c2156e4d0a163de1a","source":{"kind":"arxiv","id":"1805.03526","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03526","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03526v2","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03526","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"pith_short_12","alias_value":"X33GY6LSOIEY","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X33GY6LSOIEYZCW5","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X33GY6LS","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:X33GY6LSOIEYZCW5MG2IDBSR3L","target":"record","payload":{"canonical_record":{"source":{"id":"1805.03526","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-08T01:12:55Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"title_canon_sha256":"df3c94c5de224608874b17bae32c8821187ff410730142ec938837b090584dca","abstract_canon_sha256":"43b48d996bb7faee4abdfed06778f9c429375d4010a2ef343d4dd6079cdb440f"},"schema_version":"1.0"},"canonical_sha256":"bef66c797272098c8add61b4818651daf2c7d416f934c43c2156e4d0a163de1a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:41.845417Z","signature_b64":"UK/M7n8NQSbhFwKYqU4Hi/t//KWTGytv8jUo2WZoGbYckgIsV8E/DqdRAv4sqxMn4/ITb97PFfRXu8VfWV50Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bef66c797272098c8add61b4818651daf2c7d416f934c43c2156e4d0a163de1a","last_reissued_at":"2026-05-18T00:08:41.844659Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:41.844659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.03526","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":"2026-05-18T00:08:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WC8Ai52rYf+exGmmrQyfvtHCsZdKZaSr9Ol76VSxFn5LCQQSwi3Rc4qLvaOhF6Jlrj3DArCopv7d/OrtOYQgBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:11:18.271896Z"},"content_sha256":"0a80b963ddec2bcbf29752103be125cd47645071a2803caeeccac48e5a035642","schema_version":"1.0","event_id":"sha256:0a80b963ddec2bcbf29752103be125cd47645071a2803caeeccac48e5a035642"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:X33GY6LSOIEYZCW5MG2IDBSR3L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence for a systematic offset of -80 micro-arcseconds in the Gaia DR2 parallaxes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"2), (2) Fisk University, (3) Harvard-Smithsonian Center for Astrophysics), Guillermo Torres (3) ((1) Vanderbilt University, Keivan G. Stassun (1","submitted_at":"2018-05-08T01:12:55Z","abstract_excerpt":"We reprise the analysis of Stassun & Torres (2016), comparing the parallaxes of the eclipsing binaries reported in that paper to the parallaxes newly reported in the Gaia second data release (DR2). We find evidence for a systematic offset of $-82 \\pm 33$ micro-arcseconds, in the sense of the Gaia parallaxes being too small, for brightnesses $(G \\lesssim 12)$ and for distances (0.03--3 kpc) in the ranges spanned by the eclipsing binary sample. The offset does not appear to depend strongly on distance within this range, though there is marginal evidence that the offset increases (becomes slightl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03526","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":"2026-05-18T00:08:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H9D2zmS1itdNu9joXhaxEiMS8efGUcHrusYM6jQxTuN62fIh+77zyWfnQfGIBBrchy/6eXs/giQsZqo2z+bTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:11:18.272523Z"},"content_sha256":"cc1e7d51d1e9ad592389f26d51f45c291460e0a458f7df60ac213ed65a28355e","schema_version":"1.0","event_id":"sha256:cc1e7d51d1e9ad592389f26d51f45c291460e0a458f7df60ac213ed65a28355e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/bundle.json","state_url":"https://pith.science/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/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":"2026-05-20T18:11:18Z","links":{"resolver":"https://pith.science/pith/X33GY6LSOIEYZCW5MG2IDBSR3L","bundle":"https://pith.science/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/bundle.json","state":"https://pith.science/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X33GY6LSOIEYZCW5MG2IDBSR3L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:X33GY6LSOIEYZCW5MG2IDBSR3L","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":"43b48d996bb7faee4abdfed06778f9c429375d4010a2ef343d4dd6079cdb440f","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-08T01:12:55Z","title_canon_sha256":"df3c94c5de224608874b17bae32c8821187ff410730142ec938837b090584dca"},"schema_version":"1.0","source":{"id":"1805.03526","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03526","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03526v2","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03526","created_at":"2026-05-18T00:08:41Z"},{"alias_kind":"pith_short_12","alias_value":"X33GY6LSOIEY","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X33GY6LSOIEYZCW5","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X33GY6LS","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:cc1e7d51d1e9ad592389f26d51f45c291460e0a458f7df60ac213ed65a28355e","target":"graph","created_at":"2026-05-18T00:08:41Z","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 reprise the analysis of Stassun & Torres (2016), comparing the parallaxes of the eclipsing binaries reported in that paper to the parallaxes newly reported in the Gaia second data release (DR2). We find evidence for a systematic offset of $-82 \\pm 33$ micro-arcseconds, in the sense of the Gaia parallaxes being too small, for brightnesses $(G \\lesssim 12)$ and for distances (0.03--3 kpc) in the ranges spanned by the eclipsing binary sample. The offset does not appear to depend strongly on distance within this range, though there is marginal evidence that the offset increases (becomes slightl","authors_text":"2), (2) Fisk University, (3) Harvard-Smithsonian Center for Astrophysics), Guillermo Torres (3) ((1) Vanderbilt University, Keivan G. Stassun (1","cross_cats":["astro-ph.EP","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-08T01:12:55Z","title":"Evidence for a systematic offset of -80 micro-arcseconds in the Gaia DR2 parallaxes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03526","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":"sha256:0a80b963ddec2bcbf29752103be125cd47645071a2803caeeccac48e5a035642","target":"record","created_at":"2026-05-18T00:08:41Z","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":"43b48d996bb7faee4abdfed06778f9c429375d4010a2ef343d4dd6079cdb440f","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-08T01:12:55Z","title_canon_sha256":"df3c94c5de224608874b17bae32c8821187ff410730142ec938837b090584dca"},"schema_version":"1.0","source":{"id":"1805.03526","kind":"arxiv","version":2}},"canonical_sha256":"bef66c797272098c8add61b4818651daf2c7d416f934c43c2156e4d0a163de1a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bef66c797272098c8add61b4818651daf2c7d416f934c43c2156e4d0a163de1a","first_computed_at":"2026-05-18T00:08:41.844659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:41.844659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UK/M7n8NQSbhFwKYqU4Hi/t//KWTGytv8jUo2WZoGbYckgIsV8E/DqdRAv4sqxMn4/ITb97PFfRXu8VfWV50Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:41.845417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.03526","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a80b963ddec2bcbf29752103be125cd47645071a2803caeeccac48e5a035642","sha256:cc1e7d51d1e9ad592389f26d51f45c291460e0a458f7df60ac213ed65a28355e"],"state_sha256":"b1990b620a7bca833776e41747eb435925c8a2b9157887ac52b69fed24fff2e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RHXE5NBTUmxd8HXGzn9PIrLEQhDpY1yw5AWkO86/2/pTTzg5UWKqx+vYqMxpbR7b0KsqnUuUJcv7goIbtDT/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T18:11:18.275196Z","bundle_sha256":"321ae5c1f2ccf3d273ab16626b418df9f0f6687270fe1ac88fa5f10b0804f12d"}}