{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:4LH5WJBZ2KVRX7WVBQ6LZ2T5LA","short_pith_number":"pith:4LH5WJBZ","canonical_record":{"source":{"id":"0802.3764","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T08:01:29Z","cross_cats_sorted":[],"title_canon_sha256":"e02b007d13f3756ec0821e611764430afe3f994f3f0173b49f85e401035b53bf","abstract_canon_sha256":"f82876ad76e0c3513fed6809cf43065493dccfb4f7c80d7c7003d2848fe34b0d"},"schema_version":"1.0"},"canonical_sha256":"e2cfdb2439d2ab1bfed50c3cbcea7d5817eef1a696a837881cf761062342f27c","source":{"kind":"arxiv","id":"0802.3764","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.3764","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"arxiv_version","alias_value":"0802.3764v1","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.3764","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_12","alias_value":"4LH5WJBZ2KVR","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_16","alias_value":"4LH5WJBZ2KVRX7WV","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_8","alias_value":"4LH5WJBZ","created_at":"2026-07-04T17:09:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:4LH5WJBZ2KVRX7WVBQ6LZ2T5LA","target":"record","payload":{"canonical_record":{"source":{"id":"0802.3764","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T08:01:29Z","cross_cats_sorted":[],"title_canon_sha256":"e02b007d13f3756ec0821e611764430afe3f994f3f0173b49f85e401035b53bf","abstract_canon_sha256":"f82876ad76e0c3513fed6809cf43065493dccfb4f7c80d7c7003d2848fe34b0d"},"schema_version":"1.0"},"canonical_sha256":"e2cfdb2439d2ab1bfed50c3cbcea7d5817eef1a696a837881cf761062342f27c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:09:34.857973Z","signature_b64":"jS/whK+DPzCvjdN/t1hbeAdtt4hHhj/+pgmgnyp0/EwuY8h6hRqu0tln9ASRkxTcmS4dyhlYY6x7Xllt8HjjDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2cfdb2439d2ab1bfed50c3cbcea7d5817eef1a696a837881cf761062342f27c","last_reissued_at":"2026-07-04T17:09:34.857604Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:09:34.857604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0802.3764","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":"2026-07-04T17:09:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F4lgn8cuZIHdzbUeVbHYkdBPSucKVk8Z9wmpmZ1F2Mi6HESbrGWygJthQZ8l6+3fIr92sPt7jbYAcLc4BWjcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:12:07.505442Z"},"content_sha256":"74185ed39d8a3e040d9c285bc00cd008fffd7cda8ea7793699c17ba4aa16ff8a","schema_version":"1.0","event_id":"sha256:74185ed39d8a3e040d9c285bc00cd008fffd7cda8ea7793699c17ba4aa16ff8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:4LH5WJBZ2KVRX7WVBQ6LZ2T5LA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Homogeneous studies of transiting extrasolar planets. I. Light curve analyses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"John Southworth (University of Warwick, UK)","submitted_at":"2008-02-26T08:01:29Z","abstract_excerpt":"I present an homogeneous analysis of the transit light curves of 14 well-observed transiting extrasolar planets. The light curves are modelled using JKTEBOP, random errors are measured using Monte Carlo simulations, and the effects of correlated noise are included using a residual-permutation algorithm. The importance of stellar limb darkening (LD) on the light curve solutions and parameter uncertainties is investigated using five different LD laws. The linear LD law cannot adequately fit the HST photometry of HD 209458, but the other four laws give very similar results to each other. In most "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.3764","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/0802.3764/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":"2026-07-04T17:09:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RwXL1RIwtFl9EMKpqSIYCq0wVuOCVt+cOGsGjqTzh08n4exDnUAj97FrPvpYopJe6tABU1fPKHvzbvi/JaVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:12:07.505824Z"},"content_sha256":"9bddc5b9e78feadddbf8fbd59ca63ab3e2c96ecd9fa514eab6dc2ea309d255be","schema_version":"1.0","event_id":"sha256:9bddc5b9e78feadddbf8fbd59ca63ab3e2c96ecd9fa514eab6dc2ea309d255be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/bundle.json","state_url":"https://pith.science/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/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":"2026-07-07T12:12:07Z","links":{"resolver":"https://pith.science/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA","bundle":"https://pith.science/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/bundle.json","state":"https://pith.science/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4LH5WJBZ2KVRX7WVBQ6LZ2T5LA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4LH5WJBZ2KVRX7WVBQ6LZ2T5LA","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":"f82876ad76e0c3513fed6809cf43065493dccfb4f7c80d7c7003d2848fe34b0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T08:01:29Z","title_canon_sha256":"e02b007d13f3756ec0821e611764430afe3f994f3f0173b49f85e401035b53bf"},"schema_version":"1.0","source":{"id":"0802.3764","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.3764","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"arxiv_version","alias_value":"0802.3764v1","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.3764","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_12","alias_value":"4LH5WJBZ2KVR","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_16","alias_value":"4LH5WJBZ2KVRX7WV","created_at":"2026-07-04T17:09:34Z"},{"alias_kind":"pith_short_8","alias_value":"4LH5WJBZ","created_at":"2026-07-04T17:09:34Z"}],"graph_snapshots":[{"event_id":"sha256:9bddc5b9e78feadddbf8fbd59ca63ab3e2c96ecd9fa514eab6dc2ea309d255be","target":"graph","created_at":"2026-07-04T17:09:34Z","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/0802.3764/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"I present an homogeneous analysis of the transit light curves of 14 well-observed transiting extrasolar planets. The light curves are modelled using JKTEBOP, random errors are measured using Monte Carlo simulations, and the effects of correlated noise are included using a residual-permutation algorithm. The importance of stellar limb darkening (LD) on the light curve solutions and parameter uncertainties is investigated using five different LD laws. The linear LD law cannot adequately fit the HST photometry of HD 209458, but the other four laws give very similar results to each other. In most ","authors_text":"John Southworth (University of Warwick, UK)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T08:01:29Z","title":"Homogeneous studies of transiting extrasolar planets. I. Light curve analyses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.3764","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":"sha256:74185ed39d8a3e040d9c285bc00cd008fffd7cda8ea7793699c17ba4aa16ff8a","target":"record","created_at":"2026-07-04T17:09:34Z","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":"f82876ad76e0c3513fed6809cf43065493dccfb4f7c80d7c7003d2848fe34b0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-02-26T08:01:29Z","title_canon_sha256":"e02b007d13f3756ec0821e611764430afe3f994f3f0173b49f85e401035b53bf"},"schema_version":"1.0","source":{"id":"0802.3764","kind":"arxiv","version":1}},"canonical_sha256":"e2cfdb2439d2ab1bfed50c3cbcea7d5817eef1a696a837881cf761062342f27c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2cfdb2439d2ab1bfed50c3cbcea7d5817eef1a696a837881cf761062342f27c","first_computed_at":"2026-07-04T17:09:34.857604Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:09:34.857604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jS/whK+DPzCvjdN/t1hbeAdtt4hHhj/+pgmgnyp0/EwuY8h6hRqu0tln9ASRkxTcmS4dyhlYY6x7Xllt8HjjDg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:09:34.857973Z","signed_message":"canonical_sha256_bytes"},"source_id":"0802.3764","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74185ed39d8a3e040d9c285bc00cd008fffd7cda8ea7793699c17ba4aa16ff8a","sha256:9bddc5b9e78feadddbf8fbd59ca63ab3e2c96ecd9fa514eab6dc2ea309d255be"],"state_sha256":"0315ec366f040c7fe3ac4d42a663e2f28fb0d9652b83173cd15d62cf4adb0911"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h9NdMoSABoRfZx9YGhEtdaVeWgWZCxlMuw0in3SbkkyVLzAs0HbNJh0iJpadDDGcEZuHbMFoKGJRT91q8NvFCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:12:07.507897Z","bundle_sha256":"efb8f634e83f83e0c3c63241f35158bc72e1eff1cc6ceb7d6a9a8fe25a59bff6"}}