{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:34BWXHCQUEXOQSQLTFYC3SA5VI","short_pith_number":"pith:34BWXHCQ","canonical_record":{"source":{"id":"2505.21358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-27T15:51:50Z","cross_cats_sorted":[],"title_canon_sha256":"8fe3b64bdd9b6b5b96388a83b451ba8181af0491335416e5b6cf510b6d2e0f08","abstract_canon_sha256":"87f50d8089dd3746c728a8870f3c2826d0bf3055476f2f3cb10e6d90aa91d450"},"schema_version":"1.0"},"canonical_sha256":"df036b9c50a12ee84a0b99702dc81daa0e69cff24c428ee0ff9943651458c1a3","source":{"kind":"arxiv","id":"2505.21358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.21358","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"arxiv_version","alias_value":"2505.21358v1","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.21358","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_12","alias_value":"34BWXHCQUEXO","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_16","alias_value":"34BWXHCQUEXOQSQL","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_8","alias_value":"34BWXHCQ","created_at":"2026-07-05T11:10:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:34BWXHCQUEXOQSQLTFYC3SA5VI","target":"record","payload":{"canonical_record":{"source":{"id":"2505.21358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-27T15:51:50Z","cross_cats_sorted":[],"title_canon_sha256":"8fe3b64bdd9b6b5b96388a83b451ba8181af0491335416e5b6cf510b6d2e0f08","abstract_canon_sha256":"87f50d8089dd3746c728a8870f3c2826d0bf3055476f2f3cb10e6d90aa91d450"},"schema_version":"1.0"},"canonical_sha256":"df036b9c50a12ee84a0b99702dc81daa0e69cff24c428ee0ff9943651458c1a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:10:40.729333Z","signature_b64":"efh78KO8ZkY09+bfurRO+LkK8CFEQvORWLy9Rx9FPxriCPwBx5gIzOSIaT3PexW/0NSlgRvQFN3snrdFaWgOCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"df036b9c50a12ee84a0b99702dc81daa0e69cff24c428ee0ff9943651458c1a3","last_reissued_at":"2026-07-05T11:10:40.728834Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:10:40.728834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.21358","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":"2026-07-05T11:10:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rnpDamXmnwVfDEMfzON0IqPzKW8LxdXJkQT4SrY5V7e+rXmnVGAu1KSRe2yWmwfZ8C4csMDebFmP3QXEPxWNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T12:36:57.492926Z"},"content_sha256":"61532091ea1c0ef36c407d2ef242464ee6f3e02404fe1476b3e12fc2fa3bb23d","schema_version":"1.0","event_id":"sha256:61532091ea1c0ef36c407d2ef242464ee6f3e02404fe1476b3e12fc2fa3bb23d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:34BWXHCQUEXOQSQLTFYC3SA5VI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The James Webb Space Telescope NIRSpec-PRISM Transmission Spectrum of the Super-Puff, Kepler-51d","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Aaron Bello-Arufe, Armen Tokadjian, Caleb I. Ca\\~nas, Caroline Morley, Catriona Murray, Guangwei Fu, Jessica E. Libby-Roberts, Kazumasa Ohno, Kento Masuda, Kevin B. Stevenson, Leslie Hebb, Peter Gao, Renyu Hu, Suvrath Mahadevan, Yayaati Chachan, Yui Kawashima, Zachory K. Berta-Thompson","submitted_at":"2025-05-27T15:51:50Z","abstract_excerpt":"Kepler-51 is a 500 Myr G dwarf hosting three \"super-puffs\" and one low-mass non-transiting planet. Kepler-51d, the coolest (T_eq ~ 350 K) transiting planet in this system, is also one of the lowest density super-puffs known to date (rho_p = 0.038 +/- 0.009 g/cm^3). With a planetary mass of Mp = 5.6 +/- 1.2 Earth masses and a radius of Rp = 9.32 +/- 0.18 Earth radii, the observed properties of this planet are not readily explained by most planet formation theories. Hypotheses explaining Kepler-51d's low density range from a substantial H/He envelope comprising more than 30% of its mass, to a hi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.21358","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/2505.21358/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":"2026-07-05T11:10:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NrPGPWR5SRC2R5voK3OTIZ8s30X6ab2RAXgXqvEwUMrcDf2hc0Qa8jhv4yQR4HVF5XYZ2rkeXl3rni9ViC1ADg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T12:36:57.493854Z"},"content_sha256":"596eceddc9a1fad99e37cda3473c65c6c0bc5e7e36af6df9d5960b913a4d56ff","schema_version":"1.0","event_id":"sha256:596eceddc9a1fad99e37cda3473c65c6c0bc5e7e36af6df9d5960b913a4d56ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/bundle.json","state_url":"https://pith.science/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/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":"2026-08-09T12:36:57Z","links":{"resolver":"https://pith.science/pith/34BWXHCQUEXOQSQLTFYC3SA5VI","bundle":"https://pith.science/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/bundle.json","state":"https://pith.science/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/34BWXHCQUEXOQSQLTFYC3SA5VI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:34BWXHCQUEXOQSQLTFYC3SA5VI","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":"87f50d8089dd3746c728a8870f3c2826d0bf3055476f2f3cb10e6d90aa91d450","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-27T15:51:50Z","title_canon_sha256":"8fe3b64bdd9b6b5b96388a83b451ba8181af0491335416e5b6cf510b6d2e0f08"},"schema_version":"1.0","source":{"id":"2505.21358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.21358","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"arxiv_version","alias_value":"2505.21358v1","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.21358","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_12","alias_value":"34BWXHCQUEXO","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_16","alias_value":"34BWXHCQUEXOQSQL","created_at":"2026-07-05T11:10:40Z"},{"alias_kind":"pith_short_8","alias_value":"34BWXHCQ","created_at":"2026-07-05T11:10:40Z"}],"graph_snapshots":[{"event_id":"sha256:596eceddc9a1fad99e37cda3473c65c6c0bc5e7e36af6df9d5960b913a4d56ff","target":"graph","created_at":"2026-07-05T11:10:40Z","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/2505.21358/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Kepler-51 is a 500 Myr G dwarf hosting three \"super-puffs\" and one low-mass non-transiting planet. Kepler-51d, the coolest (T_eq ~ 350 K) transiting planet in this system, is also one of the lowest density super-puffs known to date (rho_p = 0.038 +/- 0.009 g/cm^3). With a planetary mass of Mp = 5.6 +/- 1.2 Earth masses and a radius of Rp = 9.32 +/- 0.18 Earth radii, the observed properties of this planet are not readily explained by most planet formation theories. Hypotheses explaining Kepler-51d's low density range from a substantial H/He envelope comprising more than 30% of its mass, to a hi","authors_text":"Aaron Bello-Arufe, Armen Tokadjian, Caleb I. Ca\\~nas, Caroline Morley, Catriona Murray, Guangwei Fu, Jessica E. Libby-Roberts, Kazumasa Ohno, Kento Masuda, Kevin B. Stevenson, Leslie Hebb, Peter Gao, Renyu Hu, Suvrath Mahadevan, Yayaati Chachan, Yui Kawashima, Zachory K. Berta-Thompson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-27T15:51:50Z","title":"The James Webb Space Telescope NIRSpec-PRISM Transmission Spectrum of the Super-Puff, Kepler-51d"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.21358","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":"sha256:61532091ea1c0ef36c407d2ef242464ee6f3e02404fe1476b3e12fc2fa3bb23d","target":"record","created_at":"2026-07-05T11:10:40Z","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":"87f50d8089dd3746c728a8870f3c2826d0bf3055476f2f3cb10e6d90aa91d450","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-05-27T15:51:50Z","title_canon_sha256":"8fe3b64bdd9b6b5b96388a83b451ba8181af0491335416e5b6cf510b6d2e0f08"},"schema_version":"1.0","source":{"id":"2505.21358","kind":"arxiv","version":1}},"canonical_sha256":"df036b9c50a12ee84a0b99702dc81daa0e69cff24c428ee0ff9943651458c1a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df036b9c50a12ee84a0b99702dc81daa0e69cff24c428ee0ff9943651458c1a3","first_computed_at":"2026-07-05T11:10:40.728834Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:10:40.728834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"efh78KO8ZkY09+bfurRO+LkK8CFEQvORWLy9Rx9FPxriCPwBx5gIzOSIaT3PexW/0NSlgRvQFN3snrdFaWgOCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:10:40.729333Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.21358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61532091ea1c0ef36c407d2ef242464ee6f3e02404fe1476b3e12fc2fa3bb23d","sha256:596eceddc9a1fad99e37cda3473c65c6c0bc5e7e36af6df9d5960b913a4d56ff"],"state_sha256":"f78006596304c5049b94a198f51bb040ef6fb26dac76f700635b4a839d87a5d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YyXmJvuKEntfxDlplm1v001Dimn5ke19LgUwOob2+c4+Cd1DztOJXl4BlKbTZTTVvkjs8RXMpR0XGfZHT3FrDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T12:36:57.498900Z","bundle_sha256":"e22f0aa86427dc6c4694817d9388fd3a4ade11be14667193e1724c69067033f2"}}