{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WJUWVLNUYJCVOT5VYJ24JJI4I3","short_pith_number":"pith:WJUWVLNU","canonical_record":{"source":{"id":"2506.01842","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-02T16:28:13Z","cross_cats_sorted":[],"title_canon_sha256":"37bf02043fcab4f7f12314606a9d7708f75b1977bc618c08387b7ef570762fc4","abstract_canon_sha256":"176b2b6e985ab45bbf5a528fc3acbe09c480fef391b1dd0bffe5839189a6825f"},"schema_version":"1.0"},"canonical_sha256":"b2696aadb4c245574fb5c275c4a51c46d11460c2560d79ef463514f855ba8522","source":{"kind":"arxiv","id":"2506.01842","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.01842","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"arxiv_version","alias_value":"2506.01842v1","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.01842","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_12","alias_value":"WJUWVLNUYJCV","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_16","alias_value":"WJUWVLNUYJCVOT5V","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_8","alias_value":"WJUWVLNU","created_at":"2026-07-05T11:14:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WJUWVLNUYJCVOT5VYJ24JJI4I3","target":"record","payload":{"canonical_record":{"source":{"id":"2506.01842","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-02T16:28:13Z","cross_cats_sorted":[],"title_canon_sha256":"37bf02043fcab4f7f12314606a9d7708f75b1977bc618c08387b7ef570762fc4","abstract_canon_sha256":"176b2b6e985ab45bbf5a528fc3acbe09c480fef391b1dd0bffe5839189a6825f"},"schema_version":"1.0"},"canonical_sha256":"b2696aadb4c245574fb5c275c4a51c46d11460c2560d79ef463514f855ba8522","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:14:20.265462Z","signature_b64":"hwyHheg878A0jleLwnIUklYathWGryBQygRSj4gfOXoLzRlqjz9ENZiuEIcLxtjkeqPy1g1Df6HdbMmA4yU8Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2696aadb4c245574fb5c275c4a51c46d11460c2560d79ef463514f855ba8522","last_reissued_at":"2026-07-05T11:14:20.264947Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:14:20.264947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.01842","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":"2026-07-05T11:14:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"grWPFXiI4FOXWsFutnsiviLak0DmgiSs1J3c0yMzzl0Xw9OwD66azHxzp+AuFhNAS1wcLTAEwcY3cpj6fcjXCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T18:19:37.086013Z"},"content_sha256":"bc9326bad6d268f65be99b3f0bb6acc1d8e976820f536b2b6e65ae31723168ff","schema_version":"1.0","event_id":"sha256:bc9326bad6d268f65be99b3f0bb6acc1d8e976820f536b2b6e65ae31723168ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WJUWVLNUYJCVOT5VYJ24JJI4I3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Assessment of Organics Detection and Characterization on the Surface of Europa with Infrared Spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Ishan Mishra, Jonathan Lunine, Kevin P. Hand, Nikole Lewis","submitted_at":"2025-06-02T16:28:13Z","abstract_excerpt":"Organics, if they do exist on Europa, may only be present in trace amounts on the surface. NASA's upcoming mission Europa Clipper is going to provide global, high quality data of the surface of Europa in the near-infrared (NIR), specifically the 3-5~$\\mu$m region, where organics are rich in spectroscopic features. In this work we investigate Europa Clipper's ability to constrain the abundance of selected trace species of interest that span different chemical bonds found in organics, such as C-H, C=C, C$\\equiv$C, C=O and C$\\equiv$N, via NIR spectroscopy in the 3-5~$\\mu$m wavelength region. We s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.01842","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/2506.01842/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":"2026-07-05T11:14:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kMErkeycwT2XogBb1/ImUPbFtT8Rd0WP/kRDZyUAhXNHRACnCohLVbNWZ8tWQb7wPEWwNFp1sjntEAghAKbfAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T18:19:37.086545Z"},"content_sha256":"e04a1fa3d8928a82c402abbc1059d34750801a43aabddaa582de08ded1b2c970","schema_version":"1.0","event_id":"sha256:e04a1fa3d8928a82c402abbc1059d34750801a43aabddaa582de08ded1b2c970"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/bundle.json","state_url":"https://pith.science/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/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":"2026-08-21T18:19:37Z","links":{"resolver":"https://pith.science/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3","bundle":"https://pith.science/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/bundle.json","state":"https://pith.science/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WJUWVLNUYJCVOT5VYJ24JJI4I3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WJUWVLNUYJCVOT5VYJ24JJI4I3","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":"176b2b6e985ab45bbf5a528fc3acbe09c480fef391b1dd0bffe5839189a6825f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-02T16:28:13Z","title_canon_sha256":"37bf02043fcab4f7f12314606a9d7708f75b1977bc618c08387b7ef570762fc4"},"schema_version":"1.0","source":{"id":"2506.01842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.01842","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"arxiv_version","alias_value":"2506.01842v1","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.01842","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_12","alias_value":"WJUWVLNUYJCV","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_16","alias_value":"WJUWVLNUYJCVOT5V","created_at":"2026-07-05T11:14:20Z"},{"alias_kind":"pith_short_8","alias_value":"WJUWVLNU","created_at":"2026-07-05T11:14:20Z"}],"graph_snapshots":[{"event_id":"sha256:e04a1fa3d8928a82c402abbc1059d34750801a43aabddaa582de08ded1b2c970","target":"graph","created_at":"2026-07-05T11:14:20Z","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/2506.01842/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Organics, if they do exist on Europa, may only be present in trace amounts on the surface. NASA's upcoming mission Europa Clipper is going to provide global, high quality data of the surface of Europa in the near-infrared (NIR), specifically the 3-5~$\\mu$m region, where organics are rich in spectroscopic features. In this work we investigate Europa Clipper's ability to constrain the abundance of selected trace species of interest that span different chemical bonds found in organics, such as C-H, C=C, C$\\equiv$C, C=O and C$\\equiv$N, via NIR spectroscopy in the 3-5~$\\mu$m wavelength region. We s","authors_text":"Ishan Mishra, Jonathan Lunine, Kevin P. Hand, Nikole Lewis","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-02T16:28:13Z","title":"An Assessment of Organics Detection and Characterization on the Surface of Europa with Infrared Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.01842","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:bc9326bad6d268f65be99b3f0bb6acc1d8e976820f536b2b6e65ae31723168ff","target":"record","created_at":"2026-07-05T11:14:20Z","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":"176b2b6e985ab45bbf5a528fc3acbe09c480fef391b1dd0bffe5839189a6825f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-02T16:28:13Z","title_canon_sha256":"37bf02043fcab4f7f12314606a9d7708f75b1977bc618c08387b7ef570762fc4"},"schema_version":"1.0","source":{"id":"2506.01842","kind":"arxiv","version":1}},"canonical_sha256":"b2696aadb4c245574fb5c275c4a51c46d11460c2560d79ef463514f855ba8522","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2696aadb4c245574fb5c275c4a51c46d11460c2560d79ef463514f855ba8522","first_computed_at":"2026-07-05T11:14:20.264947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:14:20.264947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hwyHheg878A0jleLwnIUklYathWGryBQygRSj4gfOXoLzRlqjz9ENZiuEIcLxtjkeqPy1g1Df6HdbMmA4yU8Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:14:20.265462Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.01842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc9326bad6d268f65be99b3f0bb6acc1d8e976820f536b2b6e65ae31723168ff","sha256:e04a1fa3d8928a82c402abbc1059d34750801a43aabddaa582de08ded1b2c970"],"state_sha256":"fbeacb7a0b334d42ef3b45715e76a5a119d3b96173406ba07f177010f3f5d007"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LCOdOz3zLjW4sTErahbwOUzg6rPcI019k0JLGwR1qbSD2dfI3yxuXdnb2yEimJZCqu7gSTS/AafrhSlEquzpCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T18:19:37.094523Z","bundle_sha256":"1faaa99b05b204d4d829f41abe8c89654cbc68f806e2a43ba5d280ac3f1dbb6e"}}