{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:BTQB2VS5ECIQAGP5HIFB74QTJE","short_pith_number":"pith:BTQB2VS5","canonical_record":{"source":{"id":"1301.2475","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-11T12:26:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"628340fa1445eaf94a789c4ffed173a255fe79f4be26979f70f7e44cec8a87c0","abstract_canon_sha256":"d4bdd6ef2003325d0db4fc09392682685337dcfe9dbd72a29328b7ece07a85af"},"schema_version":"1.0"},"canonical_sha256":"0ce01d565d20910019fd3a0a1ff21349084a00ae85ace689d11c2b1571de5a54","source":{"kind":"arxiv","id":"1301.2475","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2475","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2475v1","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2475","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"pith_short_12","alias_value":"BTQB2VS5ECIQ","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BTQB2VS5ECIQAGP5","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BTQB2VS5","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:BTQB2VS5ECIQAGP5HIFB74QTJE","target":"record","payload":{"canonical_record":{"source":{"id":"1301.2475","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-11T12:26:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"628340fa1445eaf94a789c4ffed173a255fe79f4be26979f70f7e44cec8a87c0","abstract_canon_sha256":"d4bdd6ef2003325d0db4fc09392682685337dcfe9dbd72a29328b7ece07a85af"},"schema_version":"1.0"},"canonical_sha256":"0ce01d565d20910019fd3a0a1ff21349084a00ae85ace689d11c2b1571de5a54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:37.827524Z","signature_b64":"sH1rFyFn+3tA/rH2aH5KV7K/jsExmUwLV44nUWhtLBlKWXUb1gzudxyM0nb8K+RJqekg1VKLwXOEsZZAFk6aBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ce01d565d20910019fd3a0a1ff21349084a00ae85ace689d11c2b1571de5a54","last_reissued_at":"2026-05-18T03:36:37.827071Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:37.827071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.2475","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":"2026-05-18T03:36:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VaUIfJ7aC+6p84a8Pyu+CrAhIm1rV7mlc7vW7pbYgseLRoYBkR7/rs91rJKvJR2FaC0GEAOoymSTzfKV9MB+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:03:05.612194Z"},"content_sha256":"746ae5693fceacd4600c34f24465d3a6b590ec036e609b9eca2d0057156d2504","schema_version":"1.0","event_id":"sha256:746ae5693fceacd4600c34f24465d3a6b590ec036e609b9eca2d0057156d2504"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:BTQB2VS5ECIQAGP5HIFB74QTJE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Understanding the dynamical structure of pulsating stars: The Baade-Wesselink projection factor of the delta Scuti stars AI Vel and beta Cas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Domiciano De Souza, A. Fokin, D. Mourard, E. Poretti, G. Guiglion, M. Rainer, N. Nardetto, P. Mathias, W.Gieren","submitted_at":"2013-01-11T12:26:31Z","abstract_excerpt":"Aims. The Baade-Wesselink method of distance determination is based on the oscillations of pulsating stars. The key parameter of this method is the projection factor used to convert the radial velocity into the pulsation velocity. Our analysis was aimed at deriving for the first time the projection factor of delta Scuti stars, using high-resolution spectra of the high-amplitude pulsator AI Vel and of the fast rotator beta Cas. Methods. The geometric component of the projection factor (i.e. p0) was calculated using a limb-darkening model of the intensity distribution for AI Vel, and a fast-rota"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2475","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":"2026-05-18T03:36:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jp4y4SZBIwbE0mGUf4zYeWQCAABFKl5Hd2E3A5DXJLKnmNyjs7QG+CwhQksSRyS5Y9gWrPYB2T/Kd6kLULyjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:03:05.612843Z"},"content_sha256":"d8cdb391ad9349b78b7f501f77df3ec6bb35239fd556e445749cf582bceb7130","schema_version":"1.0","event_id":"sha256:d8cdb391ad9349b78b7f501f77df3ec6bb35239fd556e445749cf582bceb7130"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/bundle.json","state_url":"https://pith.science/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/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":"2026-05-28T16:03:05Z","links":{"resolver":"https://pith.science/pith/BTQB2VS5ECIQAGP5HIFB74QTJE","bundle":"https://pith.science/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/bundle.json","state":"https://pith.science/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BTQB2VS5ECIQAGP5HIFB74QTJE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BTQB2VS5ECIQAGP5HIFB74QTJE","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":"d4bdd6ef2003325d0db4fc09392682685337dcfe9dbd72a29328b7ece07a85af","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-11T12:26:31Z","title_canon_sha256":"628340fa1445eaf94a789c4ffed173a255fe79f4be26979f70f7e44cec8a87c0"},"schema_version":"1.0","source":{"id":"1301.2475","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2475","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2475v1","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2475","created_at":"2026-05-18T03:36:37Z"},{"alias_kind":"pith_short_12","alias_value":"BTQB2VS5ECIQ","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BTQB2VS5ECIQAGP5","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BTQB2VS5","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:d8cdb391ad9349b78b7f501f77df3ec6bb35239fd556e445749cf582bceb7130","target":"graph","created_at":"2026-05-18T03:36:37Z","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":"Aims. The Baade-Wesselink method of distance determination is based on the oscillations of pulsating stars. The key parameter of this method is the projection factor used to convert the radial velocity into the pulsation velocity. Our analysis was aimed at deriving for the first time the projection factor of delta Scuti stars, using high-resolution spectra of the high-amplitude pulsator AI Vel and of the fast rotator beta Cas. Methods. The geometric component of the projection factor (i.e. p0) was calculated using a limb-darkening model of the intensity distribution for AI Vel, and a fast-rota","authors_text":"A. Domiciano De Souza, A. Fokin, D. Mourard, E. Poretti, G. Guiglion, M. Rainer, N. Nardetto, P. Mathias, W.Gieren","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-11T12:26:31Z","title":"Understanding the dynamical structure of pulsating stars: The Baade-Wesselink projection factor of the delta Scuti stars AI Vel and beta Cas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2475","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":"sha256:746ae5693fceacd4600c34f24465d3a6b590ec036e609b9eca2d0057156d2504","target":"record","created_at":"2026-05-18T03:36:37Z","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":"d4bdd6ef2003325d0db4fc09392682685337dcfe9dbd72a29328b7ece07a85af","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-11T12:26:31Z","title_canon_sha256":"628340fa1445eaf94a789c4ffed173a255fe79f4be26979f70f7e44cec8a87c0"},"schema_version":"1.0","source":{"id":"1301.2475","kind":"arxiv","version":1}},"canonical_sha256":"0ce01d565d20910019fd3a0a1ff21349084a00ae85ace689d11c2b1571de5a54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ce01d565d20910019fd3a0a1ff21349084a00ae85ace689d11c2b1571de5a54","first_computed_at":"2026-05-18T03:36:37.827071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:37.827071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sH1rFyFn+3tA/rH2aH5KV7K/jsExmUwLV44nUWhtLBlKWXUb1gzudxyM0nb8K+RJqekg1VKLwXOEsZZAFk6aBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:37.827524Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.2475","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:746ae5693fceacd4600c34f24465d3a6b590ec036e609b9eca2d0057156d2504","sha256:d8cdb391ad9349b78b7f501f77df3ec6bb35239fd556e445749cf582bceb7130"],"state_sha256":"8b7ddf2ca294f6cde136a6e31e04cf8c7542d30215d5ccb1d4846737fe4aec3b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G/ck+RYI8eMyKPiWzPQ7DPi6FRQ2Q4o1whZwdO8r1GLArb0VX6NkgL7LBZi5d6ZJ5b/88tKPo4iAqOxyG/+uCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T16:03:05.616154Z","bundle_sha256":"19b830624e2330525e9f04e1227b87c848a912fcfae4d0c3d6ddc4b5c99fca36"}}