{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GGURZIEXLDUTDRFOFWR7GRMU2C","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":"3884fb7876484979fb664d3af3441078d7b9ac50d83cbe0b9a9bb9762094a8fa","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-11-11T22:05:32Z","title_canon_sha256":"4fb71fa2a44493962ccbd2d19acd4c0720041e86d2344691d989253f51d4388c"},"schema_version":"1.0","source":{"id":"1911.05597","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.05597","created_at":"2026-07-05T00:20:21Z"},{"alias_kind":"arxiv_version","alias_value":"1911.05597v1","created_at":"2026-07-05T00:20:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.05597","created_at":"2026-07-05T00:20:21Z"},{"alias_kind":"pith_short_12","alias_value":"GGURZIEXLDUT","created_at":"2026-07-05T00:20:21Z"},{"alias_kind":"pith_short_16","alias_value":"GGURZIEXLDUTDRFO","created_at":"2026-07-05T00:20:21Z"},{"alias_kind":"pith_short_8","alias_value":"GGURZIEX","created_at":"2026-07-05T00:20:21Z"}],"graph_snapshots":[{"event_id":"sha256:497e708657f64d4cfca38c621517b00b01f2eafa2888545f56091ac023960cd2","target":"graph","created_at":"2026-07-05T00:20:21Z","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/1911.05597/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The detection of exoplanets orbiting other stars has revolutionized our view of the cosmos. First results suggest that it is teeming with a fascinating diversity of rocky planets, including those in the habitable zone. Even our closest star, Proxima Centauri, harbors a small planet in its habitable zone, Proxima b. With the next generation of telescopes, we will be able to peer into the atmospheres of rocky planets and get a glimpse into other worlds. Using our own planet and its wide range of biota as a Rosetta stone, we explore how we could detect habitability and signs of life on exoplanets","authors_text":"L. Kaltenegger","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-11-11T22:05:32Z","title":"How to Characterize Habitable Worlds and Signs of Life"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.05597","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:baa16ca66238593054586050a9289bcd473d16b8ca4746a77761248152f8d55a","target":"record","created_at":"2026-07-05T00:20:21Z","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":"3884fb7876484979fb664d3af3441078d7b9ac50d83cbe0b9a9bb9762094a8fa","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-11-11T22:05:32Z","title_canon_sha256":"4fb71fa2a44493962ccbd2d19acd4c0720041e86d2344691d989253f51d4388c"},"schema_version":"1.0","source":{"id":"1911.05597","kind":"arxiv","version":1}},"canonical_sha256":"31a91ca09758e931c4ae2da3f34594d089c4946328d482c7ca1416aaf2cb85fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31a91ca09758e931c4ae2da3f34594d089c4946328d482c7ca1416aaf2cb85fc","first_computed_at":"2026-07-05T00:20:21.644218Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:20:21.644218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"phiN7uKq3Y6W0NoXd/mGktxQ0vIHhen/ilcMQA+nhDysTpdT31MOBkYSalWoxymri3MXkfO5DdHIQaPsiHpRBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:20:21.644674Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.05597","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:baa16ca66238593054586050a9289bcd473d16b8ca4746a77761248152f8d55a","sha256:497e708657f64d4cfca38c621517b00b01f2eafa2888545f56091ac023960cd2"],"state_sha256":"78e5534edf143e4ce1b10f01bc5018c71c6dce7cef4f51f3bfa2da9b0ba5633e"}