{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:TIICAKFLOO43QBPY6ANKZA4AHX","short_pith_number":"pith:TIICAKFL","canonical_record":{"source":{"id":"1010.3649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-18T16:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"405298bb9e087c32f45a6ab497463d72e52cf2b02a2916d59c5bdc7207b269c1","abstract_canon_sha256":"cf6a74e2ecd1ac12be24534049ebcb7e2b7d4063a8da00f9a1437b6b106154bf"},"schema_version":"1.0"},"canonical_sha256":"9a102028ab73b9b805f8f01aac83803dd682f5b0130a9b6aad0711384bdbdb6f","source":{"kind":"arxiv","id":"1010.3649","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.3649","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"arxiv_version","alias_value":"1010.3649v1","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.3649","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"pith_short_12","alias_value":"TIICAKFLOO43","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TIICAKFLOO43QBPY","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TIICAKFL","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:TIICAKFLOO43QBPY6ANKZA4AHX","target":"record","payload":{"canonical_record":{"source":{"id":"1010.3649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-18T16:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"405298bb9e087c32f45a6ab497463d72e52cf2b02a2916d59c5bdc7207b269c1","abstract_canon_sha256":"cf6a74e2ecd1ac12be24534049ebcb7e2b7d4063a8da00f9a1437b6b106154bf"},"schema_version":"1.0"},"canonical_sha256":"9a102028ab73b9b805f8f01aac83803dd682f5b0130a9b6aad0711384bdbdb6f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:01.705984Z","signature_b64":"NFJ58wyPrMv1GcHLyPRVZxnpFLp4Rdwqkykj5mSCYtnKjzXkdox6QYGd8Y4lV3L+Pr1NB9mPOjs59j5IPZcwBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a102028ab73b9b805f8f01aac83803dd682f5b0130a9b6aad0711384bdbdb6f","last_reissued_at":"2026-05-18T02:05:01.705185Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:01.705185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.3649","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":"2026-05-18T02:05:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vhgm7N9W3UWGf0ENxtKhAJsST57hgAnYpKyXqzAveMGC629f6DHhOR0vtsxcaCtIQgWyRnPW1un6MSVqrQ/JBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T05:29:09.177635Z"},"content_sha256":"1c40e0b7186dc2f48479975ab67fb09f062b43218e3f195e216ce2d987a7b75f","schema_version":"1.0","event_id":"sha256:1c40e0b7186dc2f48479975ab67fb09f062b43218e3f195e216ce2d987a7b75f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:TIICAKFLOO43QBPY6ANKZA4AHX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface convection and red giants radii measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"L. Piau, P. Hauschildt, P. Kervella, S. Dib","submitted_at":"2010-10-18T16:53:31Z","abstract_excerpt":"The phenomenological models of convection use characteristic length scales they do not determine but that are chosen to fit solar or stellar observations. We investigate if changes of these length scales are required between the Sun and low mass stars on the red giant branch (RGB). The question is addressed jointly in the frameworks of the mixing length theory and of the full spectrum of turbulence model. For both models, the convective length scale is assumed to be a fixed fraction of the local pressure scale height. We use constraints coming from the observed effective temperatures and linea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3649","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":"2026-05-18T02:05:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DrlZjDu23SBoxAIzalVNTxIYhTQOnnHS9/ETYMmpMbNkVo2RzPzHze7saJaCSmTwDDdNq0mVhY+bxTzEk/HxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T05:29:09.178033Z"},"content_sha256":"48b8b97ead640c9b1d79505910da654066c3a8519aa493dc643f34cdc6a60ab7","schema_version":"1.0","event_id":"sha256:48b8b97ead640c9b1d79505910da654066c3a8519aa493dc643f34cdc6a60ab7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TIICAKFLOO43QBPY6ANKZA4AHX/bundle.json","state_url":"https://pith.science/pith/TIICAKFLOO43QBPY6ANKZA4AHX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TIICAKFLOO43QBPY6ANKZA4AHX/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":"2026-06-09T05:29:09Z","links":{"resolver":"https://pith.science/pith/TIICAKFLOO43QBPY6ANKZA4AHX","bundle":"https://pith.science/pith/TIICAKFLOO43QBPY6ANKZA4AHX/bundle.json","state":"https://pith.science/pith/TIICAKFLOO43QBPY6ANKZA4AHX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TIICAKFLOO43QBPY6ANKZA4AHX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TIICAKFLOO43QBPY6ANKZA4AHX","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":"cf6a74e2ecd1ac12be24534049ebcb7e2b7d4063a8da00f9a1437b6b106154bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-18T16:53:31Z","title_canon_sha256":"405298bb9e087c32f45a6ab497463d72e52cf2b02a2916d59c5bdc7207b269c1"},"schema_version":"1.0","source":{"id":"1010.3649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.3649","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"arxiv_version","alias_value":"1010.3649v1","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.3649","created_at":"2026-05-18T02:05:01Z"},{"alias_kind":"pith_short_12","alias_value":"TIICAKFLOO43","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TIICAKFLOO43QBPY","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TIICAKFL","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:48b8b97ead640c9b1d79505910da654066c3a8519aa493dc643f34cdc6a60ab7","target":"graph","created_at":"2026-05-18T02:05:01Z","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":"The phenomenological models of convection use characteristic length scales they do not determine but that are chosen to fit solar or stellar observations. We investigate if changes of these length scales are required between the Sun and low mass stars on the red giant branch (RGB). The question is addressed jointly in the frameworks of the mixing length theory and of the full spectrum of turbulence model. For both models, the convective length scale is assumed to be a fixed fraction of the local pressure scale height. We use constraints coming from the observed effective temperatures and linea","authors_text":"L. Piau, P. Hauschildt, P. Kervella, S. Dib","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-18T16:53:31Z","title":"Surface convection and red giants radii measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3649","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":"sha256:1c40e0b7186dc2f48479975ab67fb09f062b43218e3f195e216ce2d987a7b75f","target":"record","created_at":"2026-05-18T02:05:01Z","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":"cf6a74e2ecd1ac12be24534049ebcb7e2b7d4063a8da00f9a1437b6b106154bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-18T16:53:31Z","title_canon_sha256":"405298bb9e087c32f45a6ab497463d72e52cf2b02a2916d59c5bdc7207b269c1"},"schema_version":"1.0","source":{"id":"1010.3649","kind":"arxiv","version":1}},"canonical_sha256":"9a102028ab73b9b805f8f01aac83803dd682f5b0130a9b6aad0711384bdbdb6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a102028ab73b9b805f8f01aac83803dd682f5b0130a9b6aad0711384bdbdb6f","first_computed_at":"2026-05-18T02:05:01.705185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:01.705185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NFJ58wyPrMv1GcHLyPRVZxnpFLp4Rdwqkykj5mSCYtnKjzXkdox6QYGd8Y4lV3L+Pr1NB9mPOjs59j5IPZcwBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:01.705984Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.3649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c40e0b7186dc2f48479975ab67fb09f062b43218e3f195e216ce2d987a7b75f","sha256:48b8b97ead640c9b1d79505910da654066c3a8519aa493dc643f34cdc6a60ab7"],"state_sha256":"a9fdf091779331dcc80142f9a9b527969e742e8ddc1e1abc09877aa11951def8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AoCvFud26mscrRqH1yZJtuIhe9C7u7aJLTDSDT2BISkypni4qxysB5tjMItxfltPmPgHrhOHYBhmprkwsucWAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T05:29:09.180659Z","bundle_sha256":"236b267893f0ede8f4224dbe6730baf14c75b94a0daab695f4b82f8cde890e81"}}