{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AXWOZF23YHQ2L5K6DWUEWB4Q4S","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":"6c0f9a308523e58a57627ea54af16f1f9b83c0d96f3157d9583aa360d166d062","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-02-03T19:35:24Z","title_canon_sha256":"358d021e0efd3d219dad7a501aa3a644555241ca7504bc5057932989dafebba6"},"schema_version":"1.0","source":{"id":"1702.01137","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01137","created_at":"2026-05-18T00:45:13Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01137v1","created_at":"2026-05-18T00:45:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01137","created_at":"2026-05-18T00:45:13Z"},{"alias_kind":"pith_short_12","alias_value":"AXWOZF23YHQ2","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"AXWOZF23YHQ2L5K6","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"AXWOZF23","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:3c83298b86408c8537c9964703256f861eeba4ac69c55bb6b428cd7f3a87d5b4","target":"graph","created_at":"2026-05-18T00:45:13Z","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"},"paper":{"abstract_excerpt":"Ocean-atmosphere chemistry on Earth has undergone dramatic evolutionary changes through its long history, with potentially significant ramifications for the emergence and long-term stability of atmospheric biosignatures. Though a great deal of work has centered on refining our understanding of false positives for remote life detection, much less attention has been paid to the possibility of false negatives, that is, cryptical biospheres that are widespread and active on a planet's surface but are ultimately undetectable or difficult to detect in the composition of a planet's atmosphere. Here, ","authors_text":"C.T. Reinhard, E.W. Schwieterman, S.L. Olson, T.W. Lyons","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-02-03T19:35:24Z","title":"False negatives for remote life detection on ocean-bearing planets: Lessons from the early Earth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01137","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":"sha256:3b323d497e08b8f272d87a59d217a8b98e55c217221ab6566b72e01e39f8a116","target":"record","created_at":"2026-05-18T00:45:13Z","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":"6c0f9a308523e58a57627ea54af16f1f9b83c0d96f3157d9583aa360d166d062","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-02-03T19:35:24Z","title_canon_sha256":"358d021e0efd3d219dad7a501aa3a644555241ca7504bc5057932989dafebba6"},"schema_version":"1.0","source":{"id":"1702.01137","kind":"arxiv","version":1}},"canonical_sha256":"05ecec975bc1e1a5f55e1da84b0790e48b8d4c77270f02575b6869b0e43337c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05ecec975bc1e1a5f55e1da84b0790e48b8d4c77270f02575b6869b0e43337c9","first_computed_at":"2026-05-18T00:45:13.957555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:13.957555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"99AhMEfgmzzIXEq5jjyEKf+mJsg3LDmfDe8wCcJkChg5Pzn1gc8uGrlw123Lfqwm0BanETgyh0ymM39GymeNCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:13.958226Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.01137","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b323d497e08b8f272d87a59d217a8b98e55c217221ab6566b72e01e39f8a116","sha256:3c83298b86408c8537c9964703256f861eeba4ac69c55bb6b428cd7f3a87d5b4"],"state_sha256":"9065df9dc1c29c4911937f889fde03ffd20e4bd98dbf10576076b93701ceaef3"}