{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:Y37ZCBMBGGNDXX4DPBNVFZHF4Q","short_pith_number":"pith:Y37ZCBMB","canonical_record":{"source":{"id":"astro-ph/0206051","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-04T13:10:33Z","cross_cats_sorted":[],"title_canon_sha256":"7793a1a0de69d155f937c14ad28f30b016a36d7c62c2eb50bfe81d17d25ec3dc","abstract_canon_sha256":"0f4975740e4bc9ad1ce4449d04eca6643ab147b2e3cbd301222f7964ecbd663c"},"schema_version":"1.0"},"canonical_sha256":"c6ff910581319a3bdf83785b52e4e5e4184aef0533fe172aa25f6e73708fe0c0","source":{"kind":"arxiv","id":"astro-ph/0206051","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0206051","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206051v1","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206051","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"Y37ZCBMBGGND","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"Y37ZCBMBGGNDXX4D","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"Y37ZCBMB","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:Y37ZCBMBGGNDXX4DPBNVFZHF4Q","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0206051","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-04T13:10:33Z","cross_cats_sorted":[],"title_canon_sha256":"7793a1a0de69d155f937c14ad28f30b016a36d7c62c2eb50bfe81d17d25ec3dc","abstract_canon_sha256":"0f4975740e4bc9ad1ce4449d04eca6643ab147b2e3cbd301222f7964ecbd663c"},"schema_version":"1.0"},"canonical_sha256":"c6ff910581319a3bdf83785b52e4e5e4184aef0533fe172aa25f6e73708fe0c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:44.751125Z","signature_b64":"8zV00k13vkXGFGOlG6ODGacw++iorA9w50XLhxBXEe7ZL74DeiNVq8gv8pE5hDhQUSL3dInWZXOsgspbVPt6Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6ff910581319a3bdf83785b52e4e5e4184aef0533fe172aa25f6e73708fe0c0","last_reissued_at":"2026-05-18T01:07:44.750510Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:44.750510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0206051","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":"2026-05-18T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VkeMUIbGQiA94OXMjfGMsV8HPGxobBBPafe6X/ArEdytAGel5Ozsjm4zsqWZOCYt/+QA8g6tk52Bmq8WgJsYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:47:39.294654Z"},"content_sha256":"b04fbcbc7bcaa3fe5b75df9f18c98b51a196674c8c2f2a7c17bc2c3083ec94f8","schema_version":"1.0","event_id":"sha256:b04fbcbc7bcaa3fe5b75df9f18c98b51a196674c8c2f2a7c17bc2c3083ec94f8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:Y37ZCBMBGGNDXX4DPBNVFZHF4Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The acoustic spectrum of alpha Cen A","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"F. Bouchy, F. Carrier","submitted_at":"2002-06-04T13:10:33Z","abstract_excerpt":"This paper presents the analysis of Doppler p-mode observations of the G2V star $\\alpha$ Cen A obtained with the spectrograph CORALIE in May 2001. Thirteen nights of observations have made it possible to collect 1850 radial velocity measurements with a standard deviation of about 1.5 m s$^{-1}$. Twenty-eight oscillation modes have been identified in the power spectrum between 1.8 and 2.9 mHz with amplitudes in the range 12 to 44 cm s$^{-1}$. The average large and small spacing are respectively equal to 105.5 and 5.6 $\\mu$Hz. A comparison with stellar models of $\\alpha$ Cen A is presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206051","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":"2026-05-18T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wvr49ivRTB8I51+1jj8VN87yV3uUaFNaHtmMQo6JdVspdAqDOnUTK0f67Bza7U8QnEVM1tVG/HMWb2+zvIG3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:47:39.295125Z"},"content_sha256":"34414910e497e2aa1779a94a61a0bc1424d5579f2bcfd5259df3092f0284edbe","schema_version":"1.0","event_id":"sha256:34414910e497e2aa1779a94a61a0bc1424d5579f2bcfd5259df3092f0284edbe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/bundle.json","state_url":"https://pith.science/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/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":"2026-05-25T22:47:39Z","links":{"resolver":"https://pith.science/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q","bundle":"https://pith.science/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/bundle.json","state":"https://pith.science/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y37ZCBMBGGNDXX4DPBNVFZHF4Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:Y37ZCBMBGGNDXX4DPBNVFZHF4Q","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":"0f4975740e4bc9ad1ce4449d04eca6643ab147b2e3cbd301222f7964ecbd663c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-04T13:10:33Z","title_canon_sha256":"7793a1a0de69d155f937c14ad28f30b016a36d7c62c2eb50bfe81d17d25ec3dc"},"schema_version":"1.0","source":{"id":"astro-ph/0206051","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0206051","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206051v1","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206051","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"Y37ZCBMBGGND","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"Y37ZCBMBGGNDXX4D","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"Y37ZCBMB","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:34414910e497e2aa1779a94a61a0bc1424d5579f2bcfd5259df3092f0284edbe","target":"graph","created_at":"2026-05-18T01:07:44Z","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":"This paper presents the analysis of Doppler p-mode observations of the G2V star $\\alpha$ Cen A obtained with the spectrograph CORALIE in May 2001. Thirteen nights of observations have made it possible to collect 1850 radial velocity measurements with a standard deviation of about 1.5 m s$^{-1}$. Twenty-eight oscillation modes have been identified in the power spectrum between 1.8 and 2.9 mHz with amplitudes in the range 12 to 44 cm s$^{-1}$. The average large and small spacing are respectively equal to 105.5 and 5.6 $\\mu$Hz. A comparison with stellar models of $\\alpha$ Cen A is presented.","authors_text":"F. Bouchy, F. Carrier","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-06-04T13:10:33Z","title":"The acoustic spectrum of alpha Cen A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206051","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:b04fbcbc7bcaa3fe5b75df9f18c98b51a196674c8c2f2a7c17bc2c3083ec94f8","target":"record","created_at":"2026-05-18T01:07:44Z","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":"0f4975740e4bc9ad1ce4449d04eca6643ab147b2e3cbd301222f7964ecbd663c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-04T13:10:33Z","title_canon_sha256":"7793a1a0de69d155f937c14ad28f30b016a36d7c62c2eb50bfe81d17d25ec3dc"},"schema_version":"1.0","source":{"id":"astro-ph/0206051","kind":"arxiv","version":1}},"canonical_sha256":"c6ff910581319a3bdf83785b52e4e5e4184aef0533fe172aa25f6e73708fe0c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6ff910581319a3bdf83785b52e4e5e4184aef0533fe172aa25f6e73708fe0c0","first_computed_at":"2026-05-18T01:07:44.750510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:44.750510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8zV00k13vkXGFGOlG6ODGacw++iorA9w50XLhxBXEe7ZL74DeiNVq8gv8pE5hDhQUSL3dInWZXOsgspbVPt6Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:44.751125Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0206051","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b04fbcbc7bcaa3fe5b75df9f18c98b51a196674c8c2f2a7c17bc2c3083ec94f8","sha256:34414910e497e2aa1779a94a61a0bc1424d5579f2bcfd5259df3092f0284edbe"],"state_sha256":"ef134604545c342746ff311c60ea77e24e11155040c1740c6bc918a1200508e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4dLQul2J96Ojbzq1KC81R7JoIAcbuHqZ+9LxcEfiMjY2uV42I1fLUBY62AMkmigODIVRg9aZuPQe44JzUcEGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:47:39.297928Z","bundle_sha256":"69bd9082d25a592f826541a17a29f6c388b430edf9c63bde01c3b24259ba1640"}}