{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:HD6Z3RI4HXVBKWFTAGIEJFJJI4","short_pith_number":"pith:HD6Z3RI4","canonical_record":{"source":{"id":"astro-ph/0107332","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-18T09:26:19Z","cross_cats_sorted":[],"title_canon_sha256":"a0981b4e26e5454e4c464ecea3de797966ebb68bfbde1d9c07aa8034b5b28852","abstract_canon_sha256":"d4ae868cd854e94fbc21003cab617d528c6e898b6f90068e1fc54ee6a696eece"},"schema_version":"1.0"},"canonical_sha256":"38fd9dc51c3dea1558b301904495294709639efd14ec06ec874a064ae455d7f4","source":{"kind":"arxiv","id":"astro-ph/0107332","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0107332","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0107332v1","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0107332","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_12","alias_value":"HD6Z3RI4HXVB","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_16","alias_value":"HD6Z3RI4HXVBKWFT","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_8","alias_value":"HD6Z3RI4","created_at":"2026-07-04T16:23:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:HD6Z3RI4HXVBKWFTAGIEJFJJI4","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0107332","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-18T09:26:19Z","cross_cats_sorted":[],"title_canon_sha256":"a0981b4e26e5454e4c464ecea3de797966ebb68bfbde1d9c07aa8034b5b28852","abstract_canon_sha256":"d4ae868cd854e94fbc21003cab617d528c6e898b6f90068e1fc54ee6a696eece"},"schema_version":"1.0"},"canonical_sha256":"38fd9dc51c3dea1558b301904495294709639efd14ec06ec874a064ae455d7f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:43.490841Z","signature_b64":"5x7TXSGa0RgYHqxKGXVICSpB4dr3RQbO7gpFbqI8PPo5h6IpfI6JLnHrdw4Gf8T1Sy9fFTNsC3XgU3jXyJycCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38fd9dc51c3dea1558b301904495294709639efd14ec06ec874a064ae455d7f4","last_reissued_at":"2026-07-04T16:23:43.490335Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:43.490335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0107332","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":"2026-07-04T16:23:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OQOsZOMAAAEyv73vIMcdZk7ZKBwfE0KnpzgerDZrrYEfKkh1rOqIUfXfBFqcdn8dp32CjqTs2toFj0+47+SeDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:16:40.835935Z"},"content_sha256":"208cfc3ec5fae2053f7ddabb7272d1fbbd89c84cdd70b3e5595cc6dbea7c7e3c","schema_version":"1.0","event_id":"sha256:208cfc3ec5fae2053f7ddabb7272d1fbbd89c84cdd70b3e5595cc6dbea7c7e3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:HD6Z3RI4HXVBKWFTAGIEJFJJI4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of differential rotation in psi Cap with profile analysis","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Reiners, J.H.M.M. Schmitt, M. Kuerster","submitted_at":"2001-07-18T09:26:19Z","abstract_excerpt":"We report detection of differential rotation on the F5 dwarf psi Cap using line profile analysis. The Fourier transform of both FeI lambda 5775 and SiI lambda 5772 are used to obtain a projected rotational velocity of v sini = (42+-1)km/s. Modelling of the Fourier transformed profiles shows that the combined effects of equatorial velocity, inclination and differential rotation dominate the line profile while limb darkening and turbulence velocities have only minor effects. Rigid rotation is shown to be inconsistent with the measured profiles. Modelling the line profiles analogous to solar diff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0107332","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0107332/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":"2026-07-04T16:23:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+qZVY60TkTLAfLPct90IV/X/VLhoIj9vZRxkEWeKKBjzbEsQvCFnl3eia38Bgg1CVNWDzRZCA8d1Gm4h5kGACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:16:40.836937Z"},"content_sha256":"16542d75f7ef7fe09fa1e5a4821ebb42ab09c82f72588b19bb35c0886a888b1c","schema_version":"1.0","event_id":"sha256:16542d75f7ef7fe09fa1e5a4821ebb42ab09c82f72588b19bb35c0886a888b1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/bundle.json","state_url":"https://pith.science/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/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":"2026-08-15T23:16:40Z","links":{"resolver":"https://pith.science/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4","bundle":"https://pith.science/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/bundle.json","state":"https://pith.science/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HD6Z3RI4HXVBKWFTAGIEJFJJI4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:HD6Z3RI4HXVBKWFTAGIEJFJJI4","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":"d4ae868cd854e94fbc21003cab617d528c6e898b6f90068e1fc54ee6a696eece","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-18T09:26:19Z","title_canon_sha256":"a0981b4e26e5454e4c464ecea3de797966ebb68bfbde1d9c07aa8034b5b28852"},"schema_version":"1.0","source":{"id":"astro-ph/0107332","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0107332","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0107332v1","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0107332","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_12","alias_value":"HD6Z3RI4HXVB","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_16","alias_value":"HD6Z3RI4HXVBKWFT","created_at":"2026-07-04T16:23:43Z"},{"alias_kind":"pith_short_8","alias_value":"HD6Z3RI4","created_at":"2026-07-04T16:23:43Z"}],"graph_snapshots":[{"event_id":"sha256:16542d75f7ef7fe09fa1e5a4821ebb42ab09c82f72588b19bb35c0886a888b1c","target":"graph","created_at":"2026-07-04T16:23:43Z","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/astro-ph/0107332/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report detection of differential rotation on the F5 dwarf psi Cap using line profile analysis. The Fourier transform of both FeI lambda 5775 and SiI lambda 5772 are used to obtain a projected rotational velocity of v sini = (42+-1)km/s. Modelling of the Fourier transformed profiles shows that the combined effects of equatorial velocity, inclination and differential rotation dominate the line profile while limb darkening and turbulence velocities have only minor effects. Rigid rotation is shown to be inconsistent with the measured profiles. Modelling the line profiles analogous to solar diff","authors_text":"A. Reiners, J.H.M.M. Schmitt, M. Kuerster","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-07-18T09:26:19Z","title":"Detection of differential rotation in psi Cap with profile analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0107332","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":"sha256:208cfc3ec5fae2053f7ddabb7272d1fbbd89c84cdd70b3e5595cc6dbea7c7e3c","target":"record","created_at":"2026-07-04T16:23:43Z","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":"d4ae868cd854e94fbc21003cab617d528c6e898b6f90068e1fc54ee6a696eece","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-18T09:26:19Z","title_canon_sha256":"a0981b4e26e5454e4c464ecea3de797966ebb68bfbde1d9c07aa8034b5b28852"},"schema_version":"1.0","source":{"id":"astro-ph/0107332","kind":"arxiv","version":1}},"canonical_sha256":"38fd9dc51c3dea1558b301904495294709639efd14ec06ec874a064ae455d7f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38fd9dc51c3dea1558b301904495294709639efd14ec06ec874a064ae455d7f4","first_computed_at":"2026-07-04T16:23:43.490335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:43.490335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5x7TXSGa0RgYHqxKGXVICSpB4dr3RQbO7gpFbqI8PPo5h6IpfI6JLnHrdw4Gf8T1Sy9fFTNsC3XgU3jXyJycCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:43.490841Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0107332","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:208cfc3ec5fae2053f7ddabb7272d1fbbd89c84cdd70b3e5595cc6dbea7c7e3c","sha256:16542d75f7ef7fe09fa1e5a4821ebb42ab09c82f72588b19bb35c0886a888b1c"],"state_sha256":"ed562325848e58589df9f27e2718c379eae69c6116a3a959753681af00b0322d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UUBb1PrgjepK1dvcz2NMTdc6uDV8iiGjtmXGTp1RFXhi7IO4KDGuYpW4ZSoh7/gwKmQ+zcmLiaTntWvrxcnsBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T23:16:40.844330Z","bundle_sha256":"39f1d3bf0cc5bdbe4d8ed72db82fc83c806914d15e9a93cb8d173a95e9491318"}}