{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:5KABWRRTGXCTZAH3E5G54X64IQ","short_pith_number":"pith:5KABWRRT","canonical_record":{"source":{"id":"2608.13473","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T16:58:27Z","cross_cats_sorted":[],"title_canon_sha256":"033a6d744ddbd1c1db7dd53681263b8af1d51a557fc3dbcea9be024f0c96ea8e","abstract_canon_sha256":"d791e6704d1ae465535772c7e9122c2a3eeef34033afa6fedec2609780d2761a"},"schema_version":"1.0"},"canonical_sha256":"ea801b463335c53c80fb274dde5fdc440a785002d6d05b119196881a72f93515","source":{"kind":"arxiv","id":"2608.13473","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13473","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13473v1","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13473","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_12","alias_value":"5KABWRRTGXCT","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_16","alias_value":"5KABWRRTGXCTZAH3","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_8","alias_value":"5KABWRRT","created_at":"2026-08-14T01:24:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:5KABWRRTGXCTZAH3E5G54X64IQ","target":"record","payload":{"canonical_record":{"source":{"id":"2608.13473","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T16:58:27Z","cross_cats_sorted":[],"title_canon_sha256":"033a6d744ddbd1c1db7dd53681263b8af1d51a557fc3dbcea9be024f0c96ea8e","abstract_canon_sha256":"d791e6704d1ae465535772c7e9122c2a3eeef34033afa6fedec2609780d2761a"},"schema_version":"1.0"},"canonical_sha256":"ea801b463335c53c80fb274dde5fdc440a785002d6d05b119196881a72f93515","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-14T01:24:48.947865Z","signature_b64":"dmr/FnTXoRawLiFyLFBfloD8Eq9duptcYGELh+Bs1f6WrgFR31lRaFSjQQ1g+I1HRIoSleT0+nZ7uM5uQvbbDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea801b463335c53c80fb274dde5fdc440a785002d6d05b119196881a72f93515","last_reissued_at":"2026-08-14T01:24:48.945199Z","signature_status":"signed_v1","first_computed_at":"2026-08-14T01:24:48.945199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.13473","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":"2026-08-14T01:24:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ZVhFAfk+GaBwnio0fyRSbEFDmCkoYjSsLEgGRhFFDbiopt0w+ARjkDtxeBW+ilFbvdIqo3LmrxFDuELkAhjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T22:38:17.547888Z"},"content_sha256":"3a5d586bd0b15e2af69293b5a0753c0e4ea4809d71bdbbb566c25fc56c619fc7","schema_version":"1.0","event_id":"sha256:3a5d586bd0b15e2af69293b5a0753c0e4ea4809d71bdbbb566c25fc56c619fc7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:5KABWRRTGXCTZAH3E5G54X64IQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No Helium Detected in LHS 1140 b from Four JWST NIRISS/SOSS Transits","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Carlos Gasc\\'on, David K. Sing, Guangwei Fu, Jacob Lustig-Yaeger, Jeff A. Valenti, Jegug Ih, Jonathan Brande, Katherine A. Bennett, Kevin B. Stevenson, Kristin S. Sotzen, Megan Weiner Mansfield, Mercedes L\\'opez-Morales, Munazza K. Alam, Sarah E. Moran, Sarah Peacock, Sten J. Vermeiren","submitted_at":"2026-08-13T16:58:27Z","abstract_excerpt":"In the effort to determine which low-mass exoplanets have atmospheres, LHS 1140 b remains one of the most favorable targets. Its large size (5.6 $\\rm M_{\\oplus}$ and 1.7 $\\rm R_{\\oplus}$) and relatively long orbital period (24.7 days) imply an atmosphere may be likely, and notably, recent interior models favor either a hydrogen-dominated \"mini-Neptune\" or a \"water world\" over a true terrestrial planet. Another possibility is that it has a helium-rich atmosphere. This hypothesis is supported by recent ground-based observations that detected the metastable helium triplet during transit. These ob"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13473","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/2608.13473/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":"2026-08-14T01:24:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iRXjlaby0kcSHCMTaFdyHneQwUUV7FPToV1v/nNYAL7nM7oBliS3c/EdC9VWtOz0ItWiVBO/KI9lRR95Gn0xAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T22:38:17.548195Z"},"content_sha256":"79bb2d6594f724404055a525289b37f3b4031f59978aac7b5f66886398b059bb","schema_version":"1.0","event_id":"sha256:79bb2d6594f724404055a525289b37f3b4031f59978aac7b5f66886398b059bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KABWRRTGXCTZAH3E5G54X64IQ/bundle.json","state_url":"https://pith.science/pith/5KABWRRTGXCTZAH3E5G54X64IQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KABWRRTGXCTZAH3E5G54X64IQ/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":"2026-08-14T22:38:17Z","links":{"resolver":"https://pith.science/pith/5KABWRRTGXCTZAH3E5G54X64IQ","bundle":"https://pith.science/pith/5KABWRRTGXCTZAH3E5G54X64IQ/bundle.json","state":"https://pith.science/pith/5KABWRRTGXCTZAH3E5G54X64IQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KABWRRTGXCTZAH3E5G54X64IQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5KABWRRTGXCTZAH3E5G54X64IQ","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":"d791e6704d1ae465535772c7e9122c2a3eeef34033afa6fedec2609780d2761a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T16:58:27Z","title_canon_sha256":"033a6d744ddbd1c1db7dd53681263b8af1d51a557fc3dbcea9be024f0c96ea8e"},"schema_version":"1.0","source":{"id":"2608.13473","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13473","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13473v1","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13473","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_12","alias_value":"5KABWRRTGXCT","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_16","alias_value":"5KABWRRTGXCTZAH3","created_at":"2026-08-14T01:24:48Z"},{"alias_kind":"pith_short_8","alias_value":"5KABWRRT","created_at":"2026-08-14T01:24:48Z"}],"graph_snapshots":[{"event_id":"sha256:79bb2d6594f724404055a525289b37f3b4031f59978aac7b5f66886398b059bb","target":"graph","created_at":"2026-08-14T01:24:48Z","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/2608.13473/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the effort to determine which low-mass exoplanets have atmospheres, LHS 1140 b remains one of the most favorable targets. Its large size (5.6 $\\rm M_{\\oplus}$ and 1.7 $\\rm R_{\\oplus}$) and relatively long orbital period (24.7 days) imply an atmosphere may be likely, and notably, recent interior models favor either a hydrogen-dominated \"mini-Neptune\" or a \"water world\" over a true terrestrial planet. Another possibility is that it has a helium-rich atmosphere. This hypothesis is supported by recent ground-based observations that detected the metastable helium triplet during transit. These ob","authors_text":"Carlos Gasc\\'on, David K. Sing, Guangwei Fu, Jacob Lustig-Yaeger, Jeff A. Valenti, Jegug Ih, Jonathan Brande, Katherine A. Bennett, Kevin B. Stevenson, Kristin S. Sotzen, Megan Weiner Mansfield, Mercedes L\\'opez-Morales, Munazza K. Alam, Sarah E. Moran, Sarah Peacock, Sten J. Vermeiren","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T16:58:27Z","title":"No Helium Detected in LHS 1140 b from Four JWST NIRISS/SOSS Transits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13473","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":"sha256:3a5d586bd0b15e2af69293b5a0753c0e4ea4809d71bdbbb566c25fc56c619fc7","target":"record","created_at":"2026-08-14T01:24:48Z","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":"d791e6704d1ae465535772c7e9122c2a3eeef34033afa6fedec2609780d2761a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T16:58:27Z","title_canon_sha256":"033a6d744ddbd1c1db7dd53681263b8af1d51a557fc3dbcea9be024f0c96ea8e"},"schema_version":"1.0","source":{"id":"2608.13473","kind":"arxiv","version":1}},"canonical_sha256":"ea801b463335c53c80fb274dde5fdc440a785002d6d05b119196881a72f93515","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea801b463335c53c80fb274dde5fdc440a785002d6d05b119196881a72f93515","first_computed_at":"2026-08-14T01:24:48.945199Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-14T01:24:48.945199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dmr/FnTXoRawLiFyLFBfloD8Eq9duptcYGELh+Bs1f6WrgFR31lRaFSjQQ1g+I1HRIoSleT0+nZ7uM5uQvbbDA==","signature_status":"signed_v1","signed_at":"2026-08-14T01:24:48.947865Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.13473","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a5d586bd0b15e2af69293b5a0753c0e4ea4809d71bdbbb566c25fc56c619fc7","sha256:79bb2d6594f724404055a525289b37f3b4031f59978aac7b5f66886398b059bb"],"state_sha256":"2c3568e50dd8de9202b44e78edd5c340fa35719f02979379df10667b1edecd47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVT6Efza5hhJR3wZD/iJar4m5il1kq34a2rziNvzFSaSU119OEftaHIOX59iXtD6VtLKJvg+2uGA9vnzAKd/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T22:38:17.551753Z","bundle_sha256":"2422b88589861f7b0a1fe1646cbfb01aa9315bcba0677eb4d29d275379db44c1"}}