{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:YDKYXOVQU5REM6NZMCQ3XH7BSK","short_pith_number":"pith:YDKYXOVQ","canonical_record":{"source":{"id":"2005.04057","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-08T14:17:26Z","cross_cats_sorted":[],"title_canon_sha256":"19fc0e068cdbc6a9429b7b1460c904df32ed84b6f488c893df8c58a3dedc72fa","abstract_canon_sha256":"246abdc1141a7b4cfb263eb372b30418b0a51a95073835127efe6de12ada457f"},"schema_version":"1.0"},"canonical_sha256":"c0d58bbab0a7624679b960a1bb9fe192b2efae093b91115208b5f0b4d8964b31","source":{"kind":"arxiv","id":"2005.04057","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.04057","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2005.04057v2","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.04057","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"YDKYXOVQU5RE","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"YDKYXOVQU5REM6NZ","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"YDKYXOVQ","created_at":"2026-07-05T02:05:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:YDKYXOVQU5REM6NZMCQ3XH7BSK","target":"record","payload":{"canonical_record":{"source":{"id":"2005.04057","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-08T14:17:26Z","cross_cats_sorted":[],"title_canon_sha256":"19fc0e068cdbc6a9429b7b1460c904df32ed84b6f488c893df8c58a3dedc72fa","abstract_canon_sha256":"246abdc1141a7b4cfb263eb372b30418b0a51a95073835127efe6de12ada457f"},"schema_version":"1.0"},"canonical_sha256":"c0d58bbab0a7624679b960a1bb9fe192b2efae093b91115208b5f0b4d8964b31","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:25.300528Z","signature_b64":"7ctVnO8sDBmeS+0DnUulooavAeuvvNY64e395vtw8EVsvf0gvWyntMddpx7kE4VPyYehEwVTnLS6x1z5OS+XCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0d58bbab0a7624679b960a1bb9fe192b2efae093b91115208b5f0b4d8964b31","last_reissued_at":"2026-07-05T02:05:25.300058Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:25.300058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.04057","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":"2026-07-05T02:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8EcNpvmshx0vZbuMl1lif4/K/tzeZEmF5iNwtOp/PVQWYaHLckRJlXGDHG76EdJ2fqR54J6yxmK0tZXjFPxKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:09:17.730198Z"},"content_sha256":"d88a3f8982c2deeba44a694da1e6b14ab0020c352a12765265271e5454f4598e","schema_version":"1.0","event_id":"sha256:d88a3f8982c2deeba44a694da1e6b14ab0020c352a12765265271e5454f4598e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:YDKYXOVQU5REM6NZMCQ3XH7BSK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nearby quintuple systems Kappa Tucanae and Xi Scorpii","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrei Tokovinin","submitted_at":"2020-05-08T14:17:26Z","abstract_excerpt":"Architecture and parameters of two wide nearby hierarchical systems containing five solar-type stars each, $\\kappa$ Tuc and $\\xi$ Sco, are studied. Using Gaia astrometry and photometry, masses are determined from visual orbits and isochrones, effective temperatures from spectra or colors. Both systems are ~2 Gyr old. Their spatial motion corresponds to young disk but does not match any known kinematic group. Internal proper motions relative to the center of mass and radial velocities show that wide ~8 kau outer pairs are bound. No correlation between orbit orientations in the inner subsystems "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04057","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.04057/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":"2026-07-05T02:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MIkoT40WWsexAmcYsteF7hKjMbtIUzxlIZscP35PrWYxXS6up2pJZXTywfPlUTnvDOfBpZCERuy3QJBPgJzADA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:09:17.730822Z"},"content_sha256":"69f807669f7a26c06393e3bc5e84181f4a25c770bde9e41db0dd48be44c20ca8","schema_version":"1.0","event_id":"sha256:69f807669f7a26c06393e3bc5e84181f4a25c770bde9e41db0dd48be44c20ca8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/bundle.json","state_url":"https://pith.science/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/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":"2026-08-18T00:09:17Z","links":{"resolver":"https://pith.science/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK","bundle":"https://pith.science/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/bundle.json","state":"https://pith.science/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YDKYXOVQU5REM6NZMCQ3XH7BSK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YDKYXOVQU5REM6NZMCQ3XH7BSK","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":"246abdc1141a7b4cfb263eb372b30418b0a51a95073835127efe6de12ada457f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-08T14:17:26Z","title_canon_sha256":"19fc0e068cdbc6a9429b7b1460c904df32ed84b6f488c893df8c58a3dedc72fa"},"schema_version":"1.0","source":{"id":"2005.04057","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.04057","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2005.04057v2","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.04057","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"YDKYXOVQU5RE","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"YDKYXOVQU5REM6NZ","created_at":"2026-07-05T02:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"YDKYXOVQ","created_at":"2026-07-05T02:05:25Z"}],"graph_snapshots":[{"event_id":"sha256:69f807669f7a26c06393e3bc5e84181f4a25c770bde9e41db0dd48be44c20ca8","target":"graph","created_at":"2026-07-05T02:05:25Z","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/2005.04057/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Architecture and parameters of two wide nearby hierarchical systems containing five solar-type stars each, $\\kappa$ Tuc and $\\xi$ Sco, are studied. Using Gaia astrometry and photometry, masses are determined from visual orbits and isochrones, effective temperatures from spectra or colors. Both systems are ~2 Gyr old. Their spatial motion corresponds to young disk but does not match any known kinematic group. Internal proper motions relative to the center of mass and radial velocities show that wide ~8 kau outer pairs are bound. No correlation between orbit orientations in the inner subsystems ","authors_text":"Andrei Tokovinin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-08T14:17:26Z","title":"Nearby quintuple systems Kappa Tucanae and Xi Scorpii"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04057","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:d88a3f8982c2deeba44a694da1e6b14ab0020c352a12765265271e5454f4598e","target":"record","created_at":"2026-07-05T02:05:25Z","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":"246abdc1141a7b4cfb263eb372b30418b0a51a95073835127efe6de12ada457f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-08T14:17:26Z","title_canon_sha256":"19fc0e068cdbc6a9429b7b1460c904df32ed84b6f488c893df8c58a3dedc72fa"},"schema_version":"1.0","source":{"id":"2005.04057","kind":"arxiv","version":2}},"canonical_sha256":"c0d58bbab0a7624679b960a1bb9fe192b2efae093b91115208b5f0b4d8964b31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0d58bbab0a7624679b960a1bb9fe192b2efae093b91115208b5f0b4d8964b31","first_computed_at":"2026-07-05T02:05:25.300058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:25.300058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7ctVnO8sDBmeS+0DnUulooavAeuvvNY64e395vtw8EVsvf0gvWyntMddpx7kE4VPyYehEwVTnLS6x1z5OS+XCg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:25.300528Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.04057","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d88a3f8982c2deeba44a694da1e6b14ab0020c352a12765265271e5454f4598e","sha256:69f807669f7a26c06393e3bc5e84181f4a25c770bde9e41db0dd48be44c20ca8"],"state_sha256":"423295476d549ec58494e8d21d401974d997abe881970da234c6903ea8373e55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Z0Di74a3DgYqD1eq3MIUGDM3tzmDoAOq64acstKR4AUePrh8AsqIHr7UBNcIk1w1zjiti2e8Ug6JmdeKtJ/CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T00:09:17.738152Z","bundle_sha256":"cbe4990b8b8d8bf21df41c36bb97d2dfc143fe936498df6abec12c9ca1a9589c"}}