{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:6APFVRXMF37VHGVRGAEMLU6UJN","short_pith_number":"pith:6APFVRXM","canonical_record":{"source":{"id":"1012.1979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-09T11:35:43Z","cross_cats_sorted":[],"title_canon_sha256":"b155a914d3503196edcad77d4cfe034f93901ae0388cf6f9b350e5c8a6415846","abstract_canon_sha256":"874e95a9818f78236d73366cc0b504dc5940abbf876637335df5ec236ca503b0"},"schema_version":"1.0"},"canonical_sha256":"f01e5ac6ec2eff539ab13008c5d3d44b6f80d53ac16468d692db908128033f02","source":{"kind":"arxiv","id":"1012.1979","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1979","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1979v1","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1979","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"6APFVRXMF37V","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"6APFVRXMF37VHGVR","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"6APFVRXM","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:6APFVRXMF37VHGVRGAEMLU6UJN","target":"record","payload":{"canonical_record":{"source":{"id":"1012.1979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-09T11:35:43Z","cross_cats_sorted":[],"title_canon_sha256":"b155a914d3503196edcad77d4cfe034f93901ae0388cf6f9b350e5c8a6415846","abstract_canon_sha256":"874e95a9818f78236d73366cc0b504dc5940abbf876637335df5ec236ca503b0"},"schema_version":"1.0"},"canonical_sha256":"f01e5ac6ec2eff539ab13008c5d3d44b6f80d53ac16468d692db908128033f02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:49.249189Z","signature_b64":"g9dPBUbFl1M8NcpUCz8SR7lw3C8fMXLSCkU3C2GrJPfzUL1QdiZLEe3i5NqsmBRrLFKVkhtRiZVPSNzQP57dBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f01e5ac6ec2eff539ab13008c5d3d44b6f80d53ac16468d692db908128033f02","last_reissued_at":"2026-05-18T04:33:49.248459Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:49.248459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.1979","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":"2026-05-18T04:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DLAIEdwWrnh8OJD10aeGXEhn/w5dhjVmdEWckXVQPbGLl9NcvLY7k+yE5XVGPUkIoLv478lSk9r6BIRmcgDFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:48:19.789803Z"},"content_sha256":"de379cd6f6a42b7322c83c87700c8e33843c938da7e96c3a1ec6315cd260c9aa","schema_version":"1.0","event_id":"sha256:de379cd6f6a42b7322c83c87700c8e33843c938da7e96c3a1ec6315cd260c9aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:6APFVRXMF37VHGVRGAEMLU6UJN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A sparse population of young stars in Cepheus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Frasca, A. Klutsch, D. Montes, E. Marilli, F.-X. Pineau, J. L\\'opez-Santiago, N. Grosso, P. Guillout","submitted_at":"2010-12-09T11:35:43Z","abstract_excerpt":"Once mixed in the ambient galactic plane stellar population, young stars are virtually indiscernible because neither their global photometric properties nor the presence of nearby gas can help to disentangle them from older ones. Nevertheless, the study of the RasTyc sample revealed 4 lithium-rich field stars displaying the same space motion, which are located within a few degrees from each other on the celestial sphere near the Cepheus-Cassiopeia complex and at a similar distance from the Sun. Both physical and kinematical indicators show that all these stars are young, with ages in the range"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1979","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":"2026-05-18T04:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w1CspwFl82LwAfDOkDw+8b50cnUDQ/yWjFDRDg8/7Kq88+NxugBrM5GapYG8MZFRcBK0589LrqWMfBeFFVbPAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:48:19.790461Z"},"content_sha256":"3d3fb134ad4492d4aaefc78c98d23acbda7bbf705b099ea0f756ca641cf913c1","schema_version":"1.0","event_id":"sha256:3d3fb134ad4492d4aaefc78c98d23acbda7bbf705b099ea0f756ca641cf913c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6APFVRXMF37VHGVRGAEMLU6UJN/bundle.json","state_url":"https://pith.science/pith/6APFVRXMF37VHGVRGAEMLU6UJN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6APFVRXMF37VHGVRGAEMLU6UJN/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":"2026-05-27T03:48:19Z","links":{"resolver":"https://pith.science/pith/6APFVRXMF37VHGVRGAEMLU6UJN","bundle":"https://pith.science/pith/6APFVRXMF37VHGVRGAEMLU6UJN/bundle.json","state":"https://pith.science/pith/6APFVRXMF37VHGVRGAEMLU6UJN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6APFVRXMF37VHGVRGAEMLU6UJN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:6APFVRXMF37VHGVRGAEMLU6UJN","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":"874e95a9818f78236d73366cc0b504dc5940abbf876637335df5ec236ca503b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-09T11:35:43Z","title_canon_sha256":"b155a914d3503196edcad77d4cfe034f93901ae0388cf6f9b350e5c8a6415846"},"schema_version":"1.0","source":{"id":"1012.1979","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1979","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1979v1","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1979","created_at":"2026-05-18T04:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"6APFVRXMF37V","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"6APFVRXMF37VHGVR","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"6APFVRXM","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:3d3fb134ad4492d4aaefc78c98d23acbda7bbf705b099ea0f756ca641cf913c1","target":"graph","created_at":"2026-05-18T04:33:49Z","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":"Once mixed in the ambient galactic plane stellar population, young stars are virtually indiscernible because neither their global photometric properties nor the presence of nearby gas can help to disentangle them from older ones. Nevertheless, the study of the RasTyc sample revealed 4 lithium-rich field stars displaying the same space motion, which are located within a few degrees from each other on the celestial sphere near the Cepheus-Cassiopeia complex and at a similar distance from the Sun. Both physical and kinematical indicators show that all these stars are young, with ages in the range","authors_text":"A. Frasca, A. Klutsch, D. Montes, E. Marilli, F.-X. Pineau, J. L\\'opez-Santiago, N. Grosso, P. Guillout","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-09T11:35:43Z","title":"A sparse population of young stars in Cepheus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1979","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:de379cd6f6a42b7322c83c87700c8e33843c938da7e96c3a1ec6315cd260c9aa","target":"record","created_at":"2026-05-18T04:33:49Z","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":"874e95a9818f78236d73366cc0b504dc5940abbf876637335df5ec236ca503b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-09T11:35:43Z","title_canon_sha256":"b155a914d3503196edcad77d4cfe034f93901ae0388cf6f9b350e5c8a6415846"},"schema_version":"1.0","source":{"id":"1012.1979","kind":"arxiv","version":1}},"canonical_sha256":"f01e5ac6ec2eff539ab13008c5d3d44b6f80d53ac16468d692db908128033f02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f01e5ac6ec2eff539ab13008c5d3d44b6f80d53ac16468d692db908128033f02","first_computed_at":"2026-05-18T04:33:49.248459Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:49.248459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g9dPBUbFl1M8NcpUCz8SR7lw3C8fMXLSCkU3C2GrJPfzUL1QdiZLEe3i5NqsmBRrLFKVkhtRiZVPSNzQP57dBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:49.249189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.1979","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de379cd6f6a42b7322c83c87700c8e33843c938da7e96c3a1ec6315cd260c9aa","sha256:3d3fb134ad4492d4aaefc78c98d23acbda7bbf705b099ea0f756ca641cf913c1"],"state_sha256":"fbdb658de3a0405f817568d7adf2ca5bfd96c9dca071dd9bc7c40ad115de6394"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rt7z6jW9Pl8SzYJrHj+gFGrk+hPGWu7DGFiJ1zn7DyiDWucat5ldz1DXdnsymhpb8FKDRJ9KFL1IrcJ1hbx4Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T03:48:19.794024Z","bundle_sha256":"b621d5754d77ef066b211cf068ee07c40c68fa9461f635b842ba7117e8f7d993"}}