{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:2XIWS476HDF3PZ2ALQ6QR7I4O4","short_pith_number":"pith:2XIWS476","canonical_record":{"source":{"id":"1711.01278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-11-03T18:00:13Z","cross_cats_sorted":[],"title_canon_sha256":"31a0c3ce11b821cb5db025ba993777fd855ea6082f2b7d85765a556113fb3b0e","abstract_canon_sha256":"d7b107069416df0f32809872ce5fd171370a809da19ca89468b6cf5e59b1b814"},"schema_version":"1.0"},"canonical_sha256":"d5d16973fe38cbb7e7405c3d08fd1c7713f45ad2c6ed450dfa61db8157f0d0fc","source":{"kind":"arxiv","id":"1711.01278","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.01278","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"arxiv_version","alias_value":"1711.01278v1","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01278","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"pith_short_12","alias_value":"2XIWS476HDF3","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2XIWS476HDF3PZ2A","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2XIWS476","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:2XIWS476HDF3PZ2ALQ6QR7I4O4","target":"record","payload":{"canonical_record":{"source":{"id":"1711.01278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-11-03T18:00:13Z","cross_cats_sorted":[],"title_canon_sha256":"31a0c3ce11b821cb5db025ba993777fd855ea6082f2b7d85765a556113fb3b0e","abstract_canon_sha256":"d7b107069416df0f32809872ce5fd171370a809da19ca89468b6cf5e59b1b814"},"schema_version":"1.0"},"canonical_sha256":"d5d16973fe38cbb7e7405c3d08fd1c7713f45ad2c6ed450dfa61db8157f0d0fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:10.512840Z","signature_b64":"/YGaOPtlKLfINfUghRTrCn4SKmcxj4b+1P8LkXVdN1WMFDKjBw6ZwADBSPqwJIV5kPSqsCOTwSbzTPylXqUoAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5d16973fe38cbb7e7405c3d08fd1c7713f45ad2c6ed450dfa61db8157f0d0fc","last_reissued_at":"2026-05-18T00:28:10.512051Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:10.512051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.01278","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":"2026-05-18T00:28:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rnewfokzlpLQT3jJumApApdFFm44ltqUD888gfI0HBb5ltm3IfaCSnpxAuN59c1fhZUi1TxWlMBNEOKZRxGwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T10:50:34.601587Z"},"content_sha256":"16bede0e17b8c19ece2cd1b7fa81e4a3962fc9674538896d8bfb93437c07d1af","schema_version":"1.0","event_id":"sha256:16bede0e17b8c19ece2cd1b7fa81e4a3962fc9674538896d8bfb93437c07d1af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:2XIWS476HDF3PZ2ALQ6QR7I4O4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analytic Scattering and Refraction Models for Exoplanet Transit Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Jonathan J. Fortney, Tyler D. Robinson, William B. Hubbard","submitted_at":"2017-11-03T18:00:13Z","abstract_excerpt":"Observations of exoplanet transit spectra are essential to understanding the physics and chemistry of distant worlds. The effects of opacity sources and many physical processes combine to set the shape of a transit spectrum. Two such key processes - refraction and cloud and/or haze forward scattering - have seen substantial recent study. However, models of these processes are typically complex, which prevents their incorporation into observational analyses and standard transit spectrum tools. In this work, we develop analytic expressions that allow for the efficient parameterization of forward"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01278","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":"2026-05-18T00:28:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z09SvChRPQFRI41z5SH60XttX887kG7cuNo+p96VU8GBE1ZZKhLKYz7sapHqjRQT91wdlmf9SEvQ5De7YYH+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T10:50:34.601920Z"},"content_sha256":"0a40b3d7be066922e27f002d07d4f744cb9da8d00433f38318dc5271b72594c9","schema_version":"1.0","event_id":"sha256:0a40b3d7be066922e27f002d07d4f744cb9da8d00433f38318dc5271b72594c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/bundle.json","state_url":"https://pith.science/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/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":"2026-06-09T10:50:34Z","links":{"resolver":"https://pith.science/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4","bundle":"https://pith.science/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/bundle.json","state":"https://pith.science/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2XIWS476HDF3PZ2ALQ6QR7I4O4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2XIWS476HDF3PZ2ALQ6QR7I4O4","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":"d7b107069416df0f32809872ce5fd171370a809da19ca89468b6cf5e59b1b814","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-11-03T18:00:13Z","title_canon_sha256":"31a0c3ce11b821cb5db025ba993777fd855ea6082f2b7d85765a556113fb3b0e"},"schema_version":"1.0","source":{"id":"1711.01278","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.01278","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"arxiv_version","alias_value":"1711.01278v1","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01278","created_at":"2026-05-18T00:28:10Z"},{"alias_kind":"pith_short_12","alias_value":"2XIWS476HDF3","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2XIWS476HDF3PZ2A","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2XIWS476","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:0a40b3d7be066922e27f002d07d4f744cb9da8d00433f38318dc5271b72594c9","target":"graph","created_at":"2026-05-18T00:28:10Z","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":"Observations of exoplanet transit spectra are essential to understanding the physics and chemistry of distant worlds. The effects of opacity sources and many physical processes combine to set the shape of a transit spectrum. Two such key processes - refraction and cloud and/or haze forward scattering - have seen substantial recent study. However, models of these processes are typically complex, which prevents their incorporation into observational analyses and standard transit spectrum tools. In this work, we develop analytic expressions that allow for the efficient parameterization of forward","authors_text":"Jonathan J. Fortney, Tyler D. Robinson, William B. Hubbard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-11-03T18:00:13Z","title":"Analytic Scattering and Refraction Models for Exoplanet Transit Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01278","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":"sha256:16bede0e17b8c19ece2cd1b7fa81e4a3962fc9674538896d8bfb93437c07d1af","target":"record","created_at":"2026-05-18T00:28:10Z","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":"d7b107069416df0f32809872ce5fd171370a809da19ca89468b6cf5e59b1b814","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-11-03T18:00:13Z","title_canon_sha256":"31a0c3ce11b821cb5db025ba993777fd855ea6082f2b7d85765a556113fb3b0e"},"schema_version":"1.0","source":{"id":"1711.01278","kind":"arxiv","version":1}},"canonical_sha256":"d5d16973fe38cbb7e7405c3d08fd1c7713f45ad2c6ed450dfa61db8157f0d0fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5d16973fe38cbb7e7405c3d08fd1c7713f45ad2c6ed450dfa61db8157f0d0fc","first_computed_at":"2026-05-18T00:28:10.512051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:10.512051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/YGaOPtlKLfINfUghRTrCn4SKmcxj4b+1P8LkXVdN1WMFDKjBw6ZwADBSPqwJIV5kPSqsCOTwSbzTPylXqUoAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:10.512840Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.01278","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16bede0e17b8c19ece2cd1b7fa81e4a3962fc9674538896d8bfb93437c07d1af","sha256:0a40b3d7be066922e27f002d07d4f744cb9da8d00433f38318dc5271b72594c9"],"state_sha256":"1996f1db6f24cf101907d76c17afe263e94427ca6847605192838573e2cdfd51"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S8iW/ig0Dg21xhvG2GuGLOhTXcoLs6wyhpq8fq96hNbRLxr1v8GiBRfa1dsYcgYb2LjcwOifeLF88/40Z/u0BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T10:50:34.603736Z","bundle_sha256":"0c0a27e8f84c4bd254ddc7f809bb3e2b2cd382296228ba074033c3b887030ae2"}}