{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:BJV6PKEQPJYAGZCCEYMDYTYJHT","short_pith_number":"pith:BJV6PKEQ","canonical_record":{"source":{"id":"2607.11642","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-07-13T14:57:50Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"999d7e3de980968aa4917031321b457215b282e62b6bcf5b1da64095e53152fc","abstract_canon_sha256":"30c8b1636b8d27b56669d6bf37f473a67823ff4aaebd958946316660bbad936f"},"schema_version":"1.0"},"canonical_sha256":"0a6be7a8907a7003644226183c4f093ce0974031824285f917997adb0987f3d1","source":{"kind":"arxiv","id":"2607.11642","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.11642","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"arxiv_version","alias_value":"2607.11642v1","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.11642","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_12","alias_value":"BJV6PKEQPJYA","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_16","alias_value":"BJV6PKEQPJYAGZCC","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_8","alias_value":"BJV6PKEQ","created_at":"2026-07-14T02:22:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:BJV6PKEQPJYAGZCCEYMDYTYJHT","target":"record","payload":{"canonical_record":{"source":{"id":"2607.11642","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-07-13T14:57:50Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"999d7e3de980968aa4917031321b457215b282e62b6bcf5b1da64095e53152fc","abstract_canon_sha256":"30c8b1636b8d27b56669d6bf37f473a67823ff4aaebd958946316660bbad936f"},"schema_version":"1.0"},"canonical_sha256":"0a6be7a8907a7003644226183c4f093ce0974031824285f917997adb0987f3d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-14T02:22:16.413632Z","signature_b64":"SMJdgMxHVkAaCrBETF/U0TFJQy9ZM93iPOG8IAPpV1VwzJq85tsGuHaVL4h2p2NwIhA3PH3cHgsHRQaFvT/yAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a6be7a8907a7003644226183c4f093ce0974031824285f917997adb0987f3d1","last_reissued_at":"2026-07-14T02:22:16.412560Z","signature_status":"signed_v1","first_computed_at":"2026-07-14T02:22:16.412560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.11642","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":"2026-07-14T02:22:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Py4YqAOFKJlilf6lJ2jcMXHbD1YXZAWyBbk7rV21f5tQx6uGoa5TXTxb0ok5ZIQ5FsyXFJ3EoovNeXJKNE5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:50:29.616059Z"},"content_sha256":"051392e05058d1e5cb9778afc58905d2ade11d9d70b0c17b4d1caf0fe9af9f46","schema_version":"1.0","event_id":"sha256:051392e05058d1e5cb9778afc58905d2ade11d9d70b0c17b4d1caf0fe9af9f46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:BJV6PKEQPJYAGZCCEYMDYTYJHT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Latitudinal chemical and cloud variations in the atmosphere of a brown dwarf","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Alice Radcliffe, Allan Denis, Arthur Vigan, Benjamin Charnay, Flavien Kiefer, Ga\\\"el Chauvin, Lucas Teinturier, Matthieu Ravet, Micka\\\"el Bonnefoy, Paulina Palma-Bifani, Sam de Regt","submitted_at":"2026-07-13T14:57:50Z","abstract_excerpt":"Brown dwarfs are massive analogues of extrasolar giant planets. Compared to exoplanets whose observations are generally limited by the presence of their bright host star, brown dwarfs are ideal targets for studying substellar atmospheric physics, chemistry and dynamics. Previous observations and simulations of their atmospheres suggest preferential cloud formation around the equator, associated with an equator-pole thermal gradient. Here we show that this atmospheric structure should induce latitudinal chemical variations detectable by the Doppler effect. We introduce a new method - Differenti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.11642","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/2607.11642/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":"2026-07-14T02:22:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"atQpKBdmsfItt2rckLAuWC27hMbrBALSqSvMxg0vNo2cVsCiJpW3IKCaNlxt7Kyw1fib5H7v1M5M5UMycweuCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:50:29.616568Z"},"content_sha256":"d25b09f9555845417dea7d50d68be22c9f4a256e5aa1dd71839adc65513d94df","schema_version":"1.0","event_id":"sha256:d25b09f9555845417dea7d50d68be22c9f4a256e5aa1dd71839adc65513d94df"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:BJV6PKEQPJYAGZCCEYMDYTYJHT","target":"integrity","payload":{"note":"DOI is split by whitespace or line breaks in the printed bibliography. Reconstructed DOI 10.1111/j.1365-2966.2005.09960.x resolves to 'Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas'. A reader following the printed text alone cannot reach it.","snippet":"Harris, G. J., Tennyson, J., Kaminsky, B. M., Pavlenko, Y. V. & Jones, H. R. A. Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas.Monthly Notices of the Royal Astronomical Society367, 400–406 (2006). URL https://","arxiv_id":"2607.11642","detector":"doi_compliance","evidence":{"ref_index":53,"verdict_class":"incontrovertible","resolved_title":"Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas","printed_excerpt":"10.1111/j.1365-2966","reconstructed_doi":"10.1111/j.1365-2966.2005.09960.x"},"severity":"advisory","ref_index":53,"audited_at":"2026-07-30T08:22:45.864446Z","event_type":"pith.integrity.v1","detected_doi":"10.1111/j.1365-2966.2005.09960.x","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"a9e76bc7627972d2cc70edb26840c0ce37e6c8697b229ab40092ad19fd4ec85c","paper_version":1,"verdict_class":"incontrovertible","resolved_title":"Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas","detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":13831,"payload_sha256":"15e14020828e0af448216a795631106e81504d737e9090bc0bb785a5b98fe43d","signature_b64":null,"signing_key_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-30T08:26:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ig7g0W1FiHRmBYDAGwr02Aykg2eGNxcTrVoni49Vft+cYT3zZnzJY+WqTpVFy9RXcV8CCFZeV8pcctDlVL7VBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:50:29.621030Z"},"content_sha256":"9e9f41dbb48a40f2586a822e64bf6be235bc4dac3a38fa6bd3d77ec83c9d56b5","schema_version":"1.0","event_id":"sha256:9e9f41dbb48a40f2586a822e64bf6be235bc4dac3a38fa6bd3d77ec83c9d56b5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/bundle.json","state_url":"https://pith.science/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/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":"2026-08-06T07:50:29Z","links":{"resolver":"https://pith.science/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT","bundle":"https://pith.science/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/bundle.json","state":"https://pith.science/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BJV6PKEQPJYAGZCCEYMDYTYJHT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:BJV6PKEQPJYAGZCCEYMDYTYJHT","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"30c8b1636b8d27b56669d6bf37f473a67823ff4aaebd958946316660bbad936f","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-07-13T14:57:50Z","title_canon_sha256":"999d7e3de980968aa4917031321b457215b282e62b6bcf5b1da64095e53152fc"},"schema_version":"1.0","source":{"id":"2607.11642","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.11642","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"arxiv_version","alias_value":"2607.11642v1","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.11642","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_12","alias_value":"BJV6PKEQPJYA","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_16","alias_value":"BJV6PKEQPJYAGZCC","created_at":"2026-07-14T02:22:16Z"},{"alias_kind":"pith_short_8","alias_value":"BJV6PKEQ","created_at":"2026-07-14T02:22:16Z"}],"graph_snapshots":[{"event_id":"sha256:d25b09f9555845417dea7d50d68be22c9f4a256e5aa1dd71839adc65513d94df","target":"graph","created_at":"2026-07-14T02:22:16Z","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/2607.11642/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Brown dwarfs are massive analogues of extrasolar giant planets. Compared to exoplanets whose observations are generally limited by the presence of their bright host star, brown dwarfs are ideal targets for studying substellar atmospheric physics, chemistry and dynamics. Previous observations and simulations of their atmospheres suggest preferential cloud formation around the equator, associated with an equator-pole thermal gradient. Here we show that this atmospheric structure should induce latitudinal chemical variations detectable by the Doppler effect. We introduce a new method - Differenti","authors_text":"Alice Radcliffe, Allan Denis, Arthur Vigan, Benjamin Charnay, Flavien Kiefer, Ga\\\"el Chauvin, Lucas Teinturier, Matthieu Ravet, Micka\\\"el Bonnefoy, Paulina Palma-Bifani, Sam de Regt","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-07-13T14:57:50Z","title":"Latitudinal chemical and cloud variations in the atmosphere of a brown dwarf"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.11642","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":"sha256:051392e05058d1e5cb9778afc58905d2ade11d9d70b0c17b4d1caf0fe9af9f46","target":"record","created_at":"2026-07-14T02:22:16Z","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":"30c8b1636b8d27b56669d6bf37f473a67823ff4aaebd958946316660bbad936f","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-07-13T14:57:50Z","title_canon_sha256":"999d7e3de980968aa4917031321b457215b282e62b6bcf5b1da64095e53152fc"},"schema_version":"1.0","source":{"id":"2607.11642","kind":"arxiv","version":1}},"canonical_sha256":"0a6be7a8907a7003644226183c4f093ce0974031824285f917997adb0987f3d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a6be7a8907a7003644226183c4f093ce0974031824285f917997adb0987f3d1","first_computed_at":"2026-07-14T02:22:16.412560Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-14T02:22:16.412560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SMJdgMxHVkAaCrBETF/U0TFJQy9ZM93iPOG8IAPpV1VwzJq85tsGuHaVL4h2p2NwIhA3PH3cHgsHRQaFvT/yAw==","signature_status":"signed_v1","signed_at":"2026-07-14T02:22:16.413632Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.11642","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:051392e05058d1e5cb9778afc58905d2ade11d9d70b0c17b4d1caf0fe9af9f46","sha256:d25b09f9555845417dea7d50d68be22c9f4a256e5aa1dd71839adc65513d94df","sha256:9e9f41dbb48a40f2586a822e64bf6be235bc4dac3a38fa6bd3d77ec83c9d56b5"],"state_sha256":"1370e073174dd1a08134227e957d57a0998b50541068043c339675df5a0a443b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RHySngrMFFojjKp/uAUDZHjv4E5HaLXKJzaOqdYfZ1duG3gI0n+NsJyh5G5lyg/lwn1iLCFy8xsmtiKRy3n3Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T07:50:29.623496Z","bundle_sha256":"bfba122646627bf9b7b1656e185dc2b80cd988a4169f578606a0c80dfb9540c2"}}