{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5GTXI5QXALBNBJQS3IA3EKD7CA","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":"c6926a87027f373e4c9d7541f7b7a7a35becc4fb9f512c40e3d83d2a8333dcb1","cross_cats_sorted":["physics.bio-ph","q-bio.BM","q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-26T15:14:10Z","title_canon_sha256":"7ce00ea5adffa5781dffcd03577f31ab410f2088c25c4e509b745f303fc211bb"},"schema_version":"1.0","source":{"id":"2207.12961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.12961","created_at":"2026-07-05T04:49:01Z"},{"alias_kind":"arxiv_version","alias_value":"2207.12961v1","created_at":"2026-07-05T04:49:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.12961","created_at":"2026-07-05T04:49:01Z"},{"alias_kind":"pith_short_12","alias_value":"5GTXI5QXALBN","created_at":"2026-07-05T04:49:01Z"},{"alias_kind":"pith_short_16","alias_value":"5GTXI5QXALBNBJQS","created_at":"2026-07-05T04:49:01Z"},{"alias_kind":"pith_short_8","alias_value":"5GTXI5QX","created_at":"2026-07-05T04:49:01Z"}],"graph_snapshots":[{"event_id":"sha256:5f53b37fa2e6fcf087b9b7648f783563c21c99e5dabbfe0052d461f830a31a80","target":"graph","created_at":"2026-07-05T04:49:01Z","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/2207.12961/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the characterisations of potentially habitable planetary atmospheres on the horizon, the search for biosignatures is set to become a major area of research in the coming decades. To understand the atmospheric characteristics that might indicate alien life we must understand the abiotic characteristics of a planet and how life interacts with its environment. In the field of biogeochemistry, sophisticated models of life-environment coupled systems demonstrate that many assumptions specific to Earth-based life, e.g. specific ATP maintenance costs, are unnecessary to accurately model a biosph","authors_text":"A. E. Nicholson, J. K. Eager-Nash, K. Kohary, N. J. Mayne, S. J. Daines, T.M. Lenton","cross_cats":["physics.bio-ph","q-bio.BM","q-bio.PE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-26T15:14:10Z","title":"Predicting biosignatures for nutrient limited biospheres"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.12961","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:be452f5d2b9255814a35837f1f91e212f0df281fa995cf0ae974c4e6a26afd12","target":"record","created_at":"2026-07-05T04:49:01Z","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":"c6926a87027f373e4c9d7541f7b7a7a35becc4fb9f512c40e3d83d2a8333dcb1","cross_cats_sorted":["physics.bio-ph","q-bio.BM","q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-07-26T15:14:10Z","title_canon_sha256":"7ce00ea5adffa5781dffcd03577f31ab410f2088c25c4e509b745f303fc211bb"},"schema_version":"1.0","source":{"id":"2207.12961","kind":"arxiv","version":1}},"canonical_sha256":"e9a774761702c2d0a612da01b2287f10029eb5abaad5a244b24a5715e5867cce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9a774761702c2d0a612da01b2287f10029eb5abaad5a244b24a5715e5867cce","first_computed_at":"2026-07-05T04:49:01.238142Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:49:01.238142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Mg0F7nS8ISC7yJ7X89/s7bylhQFrGVCfZHCEhd2Y4dsuOIG3Y+Xmq4TFkwlAuDaezg9F3NmhUGGJIkF85ipCg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:49:01.238557Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.12961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be452f5d2b9255814a35837f1f91e212f0df281fa995cf0ae974c4e6a26afd12","sha256:5f53b37fa2e6fcf087b9b7648f783563c21c99e5dabbfe0052d461f830a31a80"],"state_sha256":"1fcbe86c0de2a3c31f027e094c4fbd9ef8cdb927b7c869d05508f6725cdd9587"}