{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MRJACMXUIIOXYMO4MKL3QDM3BY","short_pith_number":"pith:MRJACMXU","canonical_record":{"source":{"id":"1905.12051","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-28T19:56:24Z","cross_cats_sorted":[],"title_canon_sha256":"4f45c757a716ae6c79a74dee7d82d2302c6477fea25490ff89d936a8ac7e2d54","abstract_canon_sha256":"6829d14faf40e6c8c62ace50e2b832c0c4340559d9bc526c5a497dcfb58962fc"},"schema_version":"1.0"},"canonical_sha256":"64520132f4421d7c31dc6297b80d9b0e0eafacc5766976a17b521eb34dab8c70","source":{"kind":"arxiv","id":"1905.12051","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12051","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12051v1","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12051","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"MRJACMXUIIOX","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MRJACMXUIIOXYMO4","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MRJACMXU","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MRJACMXUIIOXYMO4MKL3QDM3BY","target":"record","payload":{"canonical_record":{"source":{"id":"1905.12051","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-28T19:56:24Z","cross_cats_sorted":[],"title_canon_sha256":"4f45c757a716ae6c79a74dee7d82d2302c6477fea25490ff89d936a8ac7e2d54","abstract_canon_sha256":"6829d14faf40e6c8c62ace50e2b832c0c4340559d9bc526c5a497dcfb58962fc"},"schema_version":"1.0"},"canonical_sha256":"64520132f4421d7c31dc6297b80d9b0e0eafacc5766976a17b521eb34dab8c70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:34.125050Z","signature_b64":"VqEj5qGGAO9/rcx/0RjkFhTmtXSKJbdyf+GKO+i5EFQ7gcDsQqXwzvMzqgNaGP6lxKhWXulLLUtwryTSCSr2AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64520132f4421d7c31dc6297b80d9b0e0eafacc5766976a17b521eb34dab8c70","last_reissued_at":"2026-05-17T23:43:34.124468Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:34.124468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.12051","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":"2026-05-17T23:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AN42D8aNGb1gsVSUfaQH2o+jlN2wtGdhGes2mzKAMe8XovEPy53FZITySRvDxm/YM1S4LUkznoMQu7PLuhc3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:59:21.469473Z"},"content_sha256":"180746a30305d9483ff2e2b0ad69f31c24dfb015df33f92a3c8569678593d5ae","schema_version":"1.0","event_id":"sha256:180746a30305d9483ff2e2b0ad69f31c24dfb015df33f92a3c8569678593d5ae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MRJACMXUIIOXYMO4MKL3QDM3BY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The compact multiple system HIP 41431","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Tokovinin, D. W. Latham, I. Cs\\'anyi, J. Sperauskas, L. Moln\\'ar, T. Borkovits, T. Hajdu","submitted_at":"2019-05-28T19:56:24Z","abstract_excerpt":"The nearby (50 pc) K7V dwarf HIP~41431 (EPIC 212096658) is a compact 3-tier hierarchy. Three K7V stars with similar masses, from 0.61 to 0.63 solar, make a triple-lined spectroscopic system where the inner binary with a period of 2.9 days is eclipsing, and the outer companion on a 59-day orbit exerts strong dynamical influence revealed by the eclipse time variation in the {\\em Kepler} photometry. Moreover, the centre-of-mass of the triple system moves on a 3.9-year orbit, modulating the proper motion. The mass of the 4-th star is 0.35 solar. The Kepler and ground-based photometry and radial ve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12051","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":"2026-05-17T23:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JO4ifonpasQAf1+kPrxV4WlthwSv5u0p+AxyNdqWaMIGKieBv5Do6XWAEM6ejLMFGsRRN66Fvkxv0EFU3+zBBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:59:21.469957Z"},"content_sha256":"717512bd08b21b04852125506b103749e1c84b2da5868fdb2c86c1ddf9592977","schema_version":"1.0","event_id":"sha256:717512bd08b21b04852125506b103749e1c84b2da5868fdb2c86c1ddf9592977"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/bundle.json","state_url":"https://pith.science/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/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":"2026-05-25T07:59:21Z","links":{"resolver":"https://pith.science/pith/MRJACMXUIIOXYMO4MKL3QDM3BY","bundle":"https://pith.science/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/bundle.json","state":"https://pith.science/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MRJACMXUIIOXYMO4MKL3QDM3BY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MRJACMXUIIOXYMO4MKL3QDM3BY","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":"6829d14faf40e6c8c62ace50e2b832c0c4340559d9bc526c5a497dcfb58962fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-28T19:56:24Z","title_canon_sha256":"4f45c757a716ae6c79a74dee7d82d2302c6477fea25490ff89d936a8ac7e2d54"},"schema_version":"1.0","source":{"id":"1905.12051","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12051","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12051v1","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12051","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"MRJACMXUIIOX","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MRJACMXUIIOXYMO4","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MRJACMXU","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:717512bd08b21b04852125506b103749e1c84b2da5868fdb2c86c1ddf9592977","target":"graph","created_at":"2026-05-17T23:43:34Z","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":"The nearby (50 pc) K7V dwarf HIP~41431 (EPIC 212096658) is a compact 3-tier hierarchy. Three K7V stars with similar masses, from 0.61 to 0.63 solar, make a triple-lined spectroscopic system where the inner binary with a period of 2.9 days is eclipsing, and the outer companion on a 59-day orbit exerts strong dynamical influence revealed by the eclipse time variation in the {\\em Kepler} photometry. Moreover, the centre-of-mass of the triple system moves on a 3.9-year orbit, modulating the proper motion. The mass of the 4-th star is 0.35 solar. The Kepler and ground-based photometry and radial ve","authors_text":"A. Tokovinin, D. W. Latham, I. Cs\\'anyi, J. Sperauskas, L. Moln\\'ar, T. Borkovits, T. Hajdu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-28T19:56:24Z","title":"The compact multiple system HIP 41431"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12051","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":"sha256:180746a30305d9483ff2e2b0ad69f31c24dfb015df33f92a3c8569678593d5ae","target":"record","created_at":"2026-05-17T23:43:34Z","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":"6829d14faf40e6c8c62ace50e2b832c0c4340559d9bc526c5a497dcfb58962fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-28T19:56:24Z","title_canon_sha256":"4f45c757a716ae6c79a74dee7d82d2302c6477fea25490ff89d936a8ac7e2d54"},"schema_version":"1.0","source":{"id":"1905.12051","kind":"arxiv","version":1}},"canonical_sha256":"64520132f4421d7c31dc6297b80d9b0e0eafacc5766976a17b521eb34dab8c70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64520132f4421d7c31dc6297b80d9b0e0eafacc5766976a17b521eb34dab8c70","first_computed_at":"2026-05-17T23:43:34.124468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:34.124468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VqEj5qGGAO9/rcx/0RjkFhTmtXSKJbdyf+GKO+i5EFQ7gcDsQqXwzvMzqgNaGP6lxKhWXulLLUtwryTSCSr2AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:34.125050Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.12051","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:180746a30305d9483ff2e2b0ad69f31c24dfb015df33f92a3c8569678593d5ae","sha256:717512bd08b21b04852125506b103749e1c84b2da5868fdb2c86c1ddf9592977"],"state_sha256":"e32ad229456a45516ae2085ce4752bc8ffe0340d1c38dc01552b84318da78a6e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/QLbh5LU2JER4MUXPyU+zV/qpt62tOsjTtBG/yRZuMUWc8pCWFFqhDJeF8Pze9gDkgnRXXxmhLtYkOvvM6XbDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T07:59:21.472691Z","bundle_sha256":"226376584f33ed801add2074c6ac855f78bea2d6ebc0982f44ddb241814b7072"}}