{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EJDKWSOAWXZYFB4WLWANRTXZVB","short_pith_number":"pith:EJDKWSOA","canonical_record":{"source":{"id":"2505.11960","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-17T11:22:06Z","cross_cats_sorted":[],"title_canon_sha256":"c33dcf40cee042e95c16391dd037271ed319c9e91472c734c3e2d1c5b0aca77d","abstract_canon_sha256":"f1a9b77f6c889be56fd02d4e8c49483dc88071d54919be4f54b07041a16cdda2"},"schema_version":"1.0"},"canonical_sha256":"2246ab49c0b5f38287965d80d8cef9a84affdf436a784c5b1c85ee77dc6064ac","source":{"kind":"arxiv","id":"2505.11960","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.11960","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2505.11960v1","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.11960","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"EJDKWSOAWXZY","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"EJDKWSOAWXZYFB4W","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"EJDKWSOA","created_at":"2026-07-05T11:04:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EJDKWSOAWXZYFB4WLWANRTXZVB","target":"record","payload":{"canonical_record":{"source":{"id":"2505.11960","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-17T11:22:06Z","cross_cats_sorted":[],"title_canon_sha256":"c33dcf40cee042e95c16391dd037271ed319c9e91472c734c3e2d1c5b0aca77d","abstract_canon_sha256":"f1a9b77f6c889be56fd02d4e8c49483dc88071d54919be4f54b07041a16cdda2"},"schema_version":"1.0"},"canonical_sha256":"2246ab49c0b5f38287965d80d8cef9a84affdf436a784c5b1c85ee77dc6064ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:04:55.473659Z","signature_b64":"GqCuXvdKIoroAnjdBNpcppK0PWwzi6tOX2p5j9R/nS3f1EAe3VmEU8T/0VqhW2Eo67So46aTjSZSluj2myfXAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2246ab49c0b5f38287965d80d8cef9a84affdf436a784c5b1c85ee77dc6064ac","last_reissued_at":"2026-07-05T11:04:55.473112Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:04:55.473112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.11960","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":"2026-07-05T11:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yuxbY0nmYnqAbSRw+VKQnVGC/MaeZ6ubzHLCrr/9ypsoiM5mSDGk+XNYDjD1098HR/W/5XfJL7B9vPvJkoLEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T07:37:23.790107Z"},"content_sha256":"77d9c30fa3a6440383ce05fbab24d0c1d8f3a4189189bdb89753f3c307d7842c","schema_version":"1.0","event_id":"sha256:77d9c30fa3a6440383ce05fbab24d0c1d8f3a4189189bdb89753f3c307d7842c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EJDKWSOAWXZYFB4WLWANRTXZVB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HST/WFC3 Constraints on the Abundances of OH and FeH in the Atmosphere of the Ultra-Hot Neptune LTT-9779 b","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Bo Ma, Chengzi Jiang, Enric Pall\\'e, Jinpeng Wang, Li Zhou, Meng Zhai, Qian Chen, Qianyi Zou, Wei Wang, Xinyue Ma, Xuedong Gu, Yonghao Wang, Yujie Peng, Zewen Jiang","submitted_at":"2025-05-17T11:22:06Z","abstract_excerpt":"Planets residing within the hot-Neptune Desert are rare, and studying their atmospheres can provide valuable insights into their formation and evolutionary processes. We present the atmospheric characterization of the first known ultra-hot Neptune, LTT-9779 b, using transmission spectroscopic observations obtained with the HST/WFC3 G141 and G102 grisms. Using the Iraclis pipeline and TauREx3 retrieval code, we find that LTT-9779 b likely possesses a H/He-dominated primary atmosphere with an opaque aerosol layer and the pure cloudy, flat-line model is rejected with approximately 2.7-$\\sigma$ co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.11960","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/2505.11960/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":"2026-07-05T11:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vnppDo3cly4hznBu6FsPIGQ5yBSixxxfQcmehw23cdJsLf/z5T8TIg47yzcLd3OvKSnkFGQX2+EP2z/ZZsAXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T07:37:23.790497Z"},"content_sha256":"c2bff74f97bc4390297e52e527ae200b62f8a3b8c180893f63001ba2d0381a91","schema_version":"1.0","event_id":"sha256:c2bff74f97bc4390297e52e527ae200b62f8a3b8c180893f63001ba2d0381a91"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/bundle.json","state_url":"https://pith.science/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/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":"2026-07-18T07:37:23Z","links":{"resolver":"https://pith.science/pith/EJDKWSOAWXZYFB4WLWANRTXZVB","bundle":"https://pith.science/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/bundle.json","state":"https://pith.science/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJDKWSOAWXZYFB4WLWANRTXZVB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EJDKWSOAWXZYFB4WLWANRTXZVB","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":"f1a9b77f6c889be56fd02d4e8c49483dc88071d54919be4f54b07041a16cdda2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-17T11:22:06Z","title_canon_sha256":"c33dcf40cee042e95c16391dd037271ed319c9e91472c734c3e2d1c5b0aca77d"},"schema_version":"1.0","source":{"id":"2505.11960","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.11960","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2505.11960v1","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.11960","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"EJDKWSOAWXZY","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"EJDKWSOAWXZYFB4W","created_at":"2026-07-05T11:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"EJDKWSOA","created_at":"2026-07-05T11:04:55Z"}],"graph_snapshots":[{"event_id":"sha256:c2bff74f97bc4390297e52e527ae200b62f8a3b8c180893f63001ba2d0381a91","target":"graph","created_at":"2026-07-05T11:04:55Z","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/2505.11960/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Planets residing within the hot-Neptune Desert are rare, and studying their atmospheres can provide valuable insights into their formation and evolutionary processes. We present the atmospheric characterization of the first known ultra-hot Neptune, LTT-9779 b, using transmission spectroscopic observations obtained with the HST/WFC3 G141 and G102 grisms. Using the Iraclis pipeline and TauREx3 retrieval code, we find that LTT-9779 b likely possesses a H/He-dominated primary atmosphere with an opaque aerosol layer and the pure cloudy, flat-line model is rejected with approximately 2.7-$\\sigma$ co","authors_text":"Bo Ma, Chengzi Jiang, Enric Pall\\'e, Jinpeng Wang, Li Zhou, Meng Zhai, Qian Chen, Qianyi Zou, Wei Wang, Xinyue Ma, Xuedong Gu, Yonghao Wang, Yujie Peng, Zewen Jiang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-17T11:22:06Z","title":"HST/WFC3 Constraints on the Abundances of OH and FeH in the Atmosphere of the Ultra-Hot Neptune LTT-9779 b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.11960","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":"sha256:77d9c30fa3a6440383ce05fbab24d0c1d8f3a4189189bdb89753f3c307d7842c","target":"record","created_at":"2026-07-05T11:04:55Z","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":"f1a9b77f6c889be56fd02d4e8c49483dc88071d54919be4f54b07041a16cdda2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-17T11:22:06Z","title_canon_sha256":"c33dcf40cee042e95c16391dd037271ed319c9e91472c734c3e2d1c5b0aca77d"},"schema_version":"1.0","source":{"id":"2505.11960","kind":"arxiv","version":1}},"canonical_sha256":"2246ab49c0b5f38287965d80d8cef9a84affdf436a784c5b1c85ee77dc6064ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2246ab49c0b5f38287965d80d8cef9a84affdf436a784c5b1c85ee77dc6064ac","first_computed_at":"2026-07-05T11:04:55.473112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:04:55.473112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GqCuXvdKIoroAnjdBNpcppK0PWwzi6tOX2p5j9R/nS3f1EAe3VmEU8T/0VqhW2Eo67So46aTjSZSluj2myfXAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:04:55.473659Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.11960","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77d9c30fa3a6440383ce05fbab24d0c1d8f3a4189189bdb89753f3c307d7842c","sha256:c2bff74f97bc4390297e52e527ae200b62f8a3b8c180893f63001ba2d0381a91"],"state_sha256":"95f998d96fc235e6aa4265539f8aa4f687c57c1b390305991325f633198a483f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ac5J86rNrCMsfnd1Gzk0DLFwyXr3m/41+zY/XrTS4VtmYht0NnXWmu40kGoGne9T9pCvDYZOnwj5bteRYeypBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T07:37:23.792518Z","bundle_sha256":"9496842805803db61ef6e2526543ba6dff2e6a92318d6772521ac2c6d65165c4"}}