{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:PB34BQLFELTODD2KT5FEYPH4CS","short_pith_number":"pith:PB34BQLF","canonical_record":{"source":{"id":"1507.04202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-15T13:11:30Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"93863bd773ae3201324e13a9b9c2750da9458ce956a8b4b4cd988e687d60698d","abstract_canon_sha256":"776bc1a324627f9c24aca5a0b35cbe3b36db9403527909452656b55f9c066488"},"schema_version":"1.0"},"canonical_sha256":"7877c0c16522e6e18f4a9f4a4c3cfc148ebb50897b6bd1601da950a0a397d8a5","source":{"kind":"arxiv","id":"1507.04202","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04202","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04202v1","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04202","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"pith_short_12","alias_value":"PB34BQLFELTO","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"PB34BQLFELTODD2K","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"PB34BQLF","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:PB34BQLFELTODD2KT5FEYPH4CS","target":"record","payload":{"canonical_record":{"source":{"id":"1507.04202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-15T13:11:30Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"93863bd773ae3201324e13a9b9c2750da9458ce956a8b4b4cd988e687d60698d","abstract_canon_sha256":"776bc1a324627f9c24aca5a0b35cbe3b36db9403527909452656b55f9c066488"},"schema_version":"1.0"},"canonical_sha256":"7877c0c16522e6e18f4a9f4a4c3cfc148ebb50897b6bd1601da950a0a397d8a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:29.553250Z","signature_b64":"qCpMfdxOYc+8QZNNiY7uS+dc0z7256NxatTmTXxVITYFKKssiP+TxS45LLoyScdDYDrB0dPwHJMnMxnWpHb9Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7877c0c16522e6e18f4a9f4a4c3cfc148ebb50897b6bd1601da950a0a397d8a5","last_reissued_at":"2026-05-18T01:35:29.552430Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:29.552430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.04202","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":"2026-05-18T01:35:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UOOEdPRyWXHfIjzvhAQtFnBC85rnBF/XO1Imx3XqVZf+Ckfeo8zHTEIpcI9cxBIKH5jQszWxpsx/z7JAwuvrDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:46:34.841877Z"},"content_sha256":"563b514debe4c914b6dc5cdeb48b8a8e81e3e07cf8c7dc3042bec20aab5c56e8","schema_version":"1.0","event_id":"sha256:563b514debe4c914b6dc5cdeb48b8a8e81e3e07cf8c7dc3042bec20aab5c56e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:PB34BQLFELTODD2KT5FEYPH4CS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Principal component analysis-based inversion of effective temperatures for late-type stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"E.R. Houdebine, F. Paletou, M. Gebran, V. Watson","submitted_at":"2015-07-15T13:11:30Z","abstract_excerpt":"We show how the range of application of the principal component analysis-based inversion method of Paletou et al. (2015) can be extended to late-type stars data. Besides being an extension of its original application domain, for FGK stars, we also used synthetic spectra for our learning database. We discuss our results on effective temperatures against previous evaluations made available from Vizier and Simbad services at CDS."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04202","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":"2026-05-18T01:35:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EVN1TmwA+YIYaxsiL8l+dUwicBG83eA8wPSRWRjSJ4KdBNYjfvqp4SPQJKYqkEvuzwzd2lF8AMVtYmmoA1PtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:46:34.842228Z"},"content_sha256":"96ea2e0680f6a15d2593d176a75e31064fb209cdeb7fc11bfe5dd5195574f6dc","schema_version":"1.0","event_id":"sha256:96ea2e0680f6a15d2593d176a75e31064fb209cdeb7fc11bfe5dd5195574f6dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PB34BQLFELTODD2KT5FEYPH4CS/bundle.json","state_url":"https://pith.science/pith/PB34BQLFELTODD2KT5FEYPH4CS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PB34BQLFELTODD2KT5FEYPH4CS/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":"2026-06-03T22:46:34Z","links":{"resolver":"https://pith.science/pith/PB34BQLFELTODD2KT5FEYPH4CS","bundle":"https://pith.science/pith/PB34BQLFELTODD2KT5FEYPH4CS/bundle.json","state":"https://pith.science/pith/PB34BQLFELTODD2KT5FEYPH4CS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PB34BQLFELTODD2KT5FEYPH4CS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PB34BQLFELTODD2KT5FEYPH4CS","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":"776bc1a324627f9c24aca5a0b35cbe3b36db9403527909452656b55f9c066488","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-15T13:11:30Z","title_canon_sha256":"93863bd773ae3201324e13a9b9c2750da9458ce956a8b4b4cd988e687d60698d"},"schema_version":"1.0","source":{"id":"1507.04202","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04202","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04202v1","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04202","created_at":"2026-05-18T01:35:29Z"},{"alias_kind":"pith_short_12","alias_value":"PB34BQLFELTO","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"PB34BQLFELTODD2K","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"PB34BQLF","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:96ea2e0680f6a15d2593d176a75e31064fb209cdeb7fc11bfe5dd5195574f6dc","target":"graph","created_at":"2026-05-18T01:35:29Z","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 show how the range of application of the principal component analysis-based inversion method of Paletou et al. (2015) can be extended to late-type stars data. Besides being an extension of its original application domain, for FGK stars, we also used synthetic spectra for our learning database. We discuss our results on effective temperatures against previous evaluations made available from Vizier and Simbad services at CDS.","authors_text":"E.R. Houdebine, F. Paletou, M. Gebran, V. Watson","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-15T13:11:30Z","title":"Principal component analysis-based inversion of effective temperatures for late-type stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04202","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":"sha256:563b514debe4c914b6dc5cdeb48b8a8e81e3e07cf8c7dc3042bec20aab5c56e8","target":"record","created_at":"2026-05-18T01:35:29Z","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":"776bc1a324627f9c24aca5a0b35cbe3b36db9403527909452656b55f9c066488","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-15T13:11:30Z","title_canon_sha256":"93863bd773ae3201324e13a9b9c2750da9458ce956a8b4b4cd988e687d60698d"},"schema_version":"1.0","source":{"id":"1507.04202","kind":"arxiv","version":1}},"canonical_sha256":"7877c0c16522e6e18f4a9f4a4c3cfc148ebb50897b6bd1601da950a0a397d8a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7877c0c16522e6e18f4a9f4a4c3cfc148ebb50897b6bd1601da950a0a397d8a5","first_computed_at":"2026-05-18T01:35:29.552430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:29.552430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qCpMfdxOYc+8QZNNiY7uS+dc0z7256NxatTmTXxVITYFKKssiP+TxS45LLoyScdDYDrB0dPwHJMnMxnWpHb9Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:29.553250Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.04202","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:563b514debe4c914b6dc5cdeb48b8a8e81e3e07cf8c7dc3042bec20aab5c56e8","sha256:96ea2e0680f6a15d2593d176a75e31064fb209cdeb7fc11bfe5dd5195574f6dc"],"state_sha256":"29069bccba2a131234ce36c3903f67e18013ccefb7812c6e19653c1b73641249"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kltGBB11JE7TtXVijCHFQQqMYVCN9dfcxOGsHuNkfxdojNOosuPSE64jYQFLsvonncS3lo2TYZjn12iYRTuOAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:46:34.844267Z","bundle_sha256":"c284fe0d1ab43a9eaf78b56337ca317b1fbf6fbd2bc744e9d2c153619775108f"}}