{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:XAAT6UA6LTZJ2LTAZRXMBEMG2K","short_pith_number":"pith:XAAT6UA6","canonical_record":{"source":{"id":"2503.05581","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-07T17:07:41Z","cross_cats_sorted":[],"title_canon_sha256":"632500f6a4751f11dfbf747febb326e252b9d47a9cd93958244f39d1a09e57ad","abstract_canon_sha256":"e79552e90cbac2744d1ae69fc229675522ec192a44ca48d202cc32c3d52208bc"},"schema_version":"1.0"},"canonical_sha256":"b8013f501e5cf29d2e60cc6ec09186d282f441255a7dd96416d92238289d1485","source":{"kind":"arxiv","id":"2503.05581","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.05581","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"arxiv_version","alias_value":"2503.05581v1","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.05581","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_12","alias_value":"XAAT6UA6LTZJ","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"XAAT6UA6LTZJ2LTA","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"XAAT6UA6","created_at":"2026-07-05T10:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:XAAT6UA6LTZJ2LTAZRXMBEMG2K","target":"record","payload":{"canonical_record":{"source":{"id":"2503.05581","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-07T17:07:41Z","cross_cats_sorted":[],"title_canon_sha256":"632500f6a4751f11dfbf747febb326e252b9d47a9cd93958244f39d1a09e57ad","abstract_canon_sha256":"e79552e90cbac2744d1ae69fc229675522ec192a44ca48d202cc32c3d52208bc"},"schema_version":"1.0"},"canonical_sha256":"b8013f501e5cf29d2e60cc6ec09186d282f441255a7dd96416d92238289d1485","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:26:32.312088Z","signature_b64":"zqzwmTom7fD3KXXXOulgXAFKfQ3lN0WVNdXjSjuvJ7/wOD4/piO60wuYsKe2l3kzNrfjSaRdzjEKMUgS1KT4Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8013f501e5cf29d2e60cc6ec09186d282f441255a7dd96416d92238289d1485","last_reissued_at":"2026-07-05T10:26:32.308831Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:26:32.308831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.05581","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":"2026-07-05T10:26:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1pc0oc3WyLK5PphVOC0zQhCVPIZOJdvIKMDgmX/QNaFcJkXrhQmsnCp+Inr65y9kvJKnTLfOOXQ6fuRQf3AzCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:05:06.102064Z"},"content_sha256":"3ad4733177b1d7fc824b3292e035f3dd55c54d2f027fa324ea81e5a6c31e1eb1","schema_version":"1.0","event_id":"sha256:3ad4733177b1d7fc824b3292e035f3dd55c54d2f027fa324ea81e5a6c31e1eb1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:XAAT6UA6LTZJ2LTAZRXMBEMG2K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the Scattered Light properties of LTT 9779 b Using HST/WFC3 UVIS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David Lafreni\\`ere, Hannah R. Wakeford, Jake Taylor, James S. Jenkins, Michael Radica, Nicolas B. Cowan, Romain Allart, Vivien Parmentier","submitted_at":"2025-03-07T17:07:41Z","abstract_excerpt":"A planet's albedo is a fundamental property that sets its energy budget by dictating the fraction of incident radiation absorbed versus reflected back to space. Generally, optical eclipse observations have revealed the majority of hot, giant planets to have low albedos, indicating dayside atmospheres dominated by absorption instead of reflection. However, there are several exceptions to this rule, including the ultra-hot-Neptune LTT 9779b, which have been found to have high geometric albedos. We observed four eclipses of LTT 9779b with the G280 grism of the Hubble Space Telescope's WFC3 UVIS m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.05581","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/2503.05581/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":"2026-07-05T10:26:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7PuUGNjl1zz4xQ7ReoMbJhbOLmeJ3CK4AwQJvsXIfNOQBqp8z4GFgSYPIpLhkS0TYmPy/9DuCzer0REbH6cBAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:05:06.102651Z"},"content_sha256":"08d8d05b09ed4c1eeb49d69f7a389383ac17e62da8edb796be1a405351646e2a","schema_version":"1.0","event_id":"sha256:08d8d05b09ed4c1eeb49d69f7a389383ac17e62da8edb796be1a405351646e2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/bundle.json","state_url":"https://pith.science/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/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":"2026-08-06T01:05:06Z","links":{"resolver":"https://pith.science/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K","bundle":"https://pith.science/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/bundle.json","state":"https://pith.science/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XAAT6UA6LTZJ2LTAZRXMBEMG2K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:XAAT6UA6LTZJ2LTAZRXMBEMG2K","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":"e79552e90cbac2744d1ae69fc229675522ec192a44ca48d202cc32c3d52208bc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-07T17:07:41Z","title_canon_sha256":"632500f6a4751f11dfbf747febb326e252b9d47a9cd93958244f39d1a09e57ad"},"schema_version":"1.0","source":{"id":"2503.05581","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.05581","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"arxiv_version","alias_value":"2503.05581v1","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.05581","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_12","alias_value":"XAAT6UA6LTZJ","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"XAAT6UA6LTZJ2LTA","created_at":"2026-07-05T10:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"XAAT6UA6","created_at":"2026-07-05T10:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:08d8d05b09ed4c1eeb49d69f7a389383ac17e62da8edb796be1a405351646e2a","target":"graph","created_at":"2026-07-05T10:26:32Z","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/2503.05581/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A planet's albedo is a fundamental property that sets its energy budget by dictating the fraction of incident radiation absorbed versus reflected back to space. Generally, optical eclipse observations have revealed the majority of hot, giant planets to have low albedos, indicating dayside atmospheres dominated by absorption instead of reflection. However, there are several exceptions to this rule, including the ultra-hot-Neptune LTT 9779b, which have been found to have high geometric albedos. We observed four eclipses of LTT 9779b with the G280 grism of the Hubble Space Telescope's WFC3 UVIS m","authors_text":"David Lafreni\\`ere, Hannah R. Wakeford, Jake Taylor, James S. Jenkins, Michael Radica, Nicolas B. Cowan, Romain Allart, Vivien Parmentier","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-07T17:07:41Z","title":"Constraining the Scattered Light properties of LTT 9779 b Using HST/WFC3 UVIS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.05581","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":"sha256:3ad4733177b1d7fc824b3292e035f3dd55c54d2f027fa324ea81e5a6c31e1eb1","target":"record","created_at":"2026-07-05T10:26:32Z","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":"e79552e90cbac2744d1ae69fc229675522ec192a44ca48d202cc32c3d52208bc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-07T17:07:41Z","title_canon_sha256":"632500f6a4751f11dfbf747febb326e252b9d47a9cd93958244f39d1a09e57ad"},"schema_version":"1.0","source":{"id":"2503.05581","kind":"arxiv","version":1}},"canonical_sha256":"b8013f501e5cf29d2e60cc6ec09186d282f441255a7dd96416d92238289d1485","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8013f501e5cf29d2e60cc6ec09186d282f441255a7dd96416d92238289d1485","first_computed_at":"2026-07-05T10:26:32.308831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:26:32.308831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zqzwmTom7fD3KXXXOulgXAFKfQ3lN0WVNdXjSjuvJ7/wOD4/piO60wuYsKe2l3kzNrfjSaRdzjEKMUgS1KT4Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T10:26:32.312088Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.05581","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ad4733177b1d7fc824b3292e035f3dd55c54d2f027fa324ea81e5a6c31e1eb1","sha256:08d8d05b09ed4c1eeb49d69f7a389383ac17e62da8edb796be1a405351646e2a"],"state_sha256":"87d7e941717612338e9abcdfc8cbba42ef5bbe274b60b464708daf4302956ad7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BkkBoBJ6h6DqJaHztVCGDUJyQNad2JJQkiShYKJA1mnaKJ2Tdk1D0Z67CnqjjIS7rTW/7A1ryalas9hX5xvMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T01:05:06.112384Z","bundle_sha256":"77552dcf18120d7f2422a3169ad1fdff4d01fdcc81a6435830291551584193ff"}}