{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BX5JIG2QBQXW647NWJWL55CXBN","short_pith_number":"pith:BX5JIG2Q","canonical_record":{"source":{"id":"1811.00862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-11-02T13:50:36Z","cross_cats_sorted":[],"title_canon_sha256":"011aec46f54506cfc205b023cdabc39130cd814236f7e0968d4463cad2c88d94","abstract_canon_sha256":"74f5222e3b83c42ff1b901e04e2c3ca19006ed0b77bc85ed94a617003a15954a"},"schema_version":"1.0"},"canonical_sha256":"0dfa941b500c2f6f73edb26cbef4570b748cfdd83fe18ccd887a2f5eedb4c38a","source":{"kind":"arxiv","id":"1811.00862","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00862","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00862v1","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00862","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"pith_short_12","alias_value":"BX5JIG2QBQXW","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BX5JIG2QBQXW647N","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BX5JIG2Q","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BX5JIG2QBQXW647NWJWL55CXBN","target":"record","payload":{"canonical_record":{"source":{"id":"1811.00862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-11-02T13:50:36Z","cross_cats_sorted":[],"title_canon_sha256":"011aec46f54506cfc205b023cdabc39130cd814236f7e0968d4463cad2c88d94","abstract_canon_sha256":"74f5222e3b83c42ff1b901e04e2c3ca19006ed0b77bc85ed94a617003a15954a"},"schema_version":"1.0"},"canonical_sha256":"0dfa941b500c2f6f73edb26cbef4570b748cfdd83fe18ccd887a2f5eedb4c38a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:41.930945Z","signature_b64":"bxOCU87vF4d33Kt8vlqTa+84uRHKz/2qa0p6lFdR9XkCzorz/4AoYvPqcYYzeRLiOiaNohWeAoltbQQ0IMTeAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0dfa941b500c2f6f73edb26cbef4570b748cfdd83fe18ccd887a2f5eedb4c38a","last_reissued_at":"2026-05-18T00:01:41.930441Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:41.930441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.00862","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":"2026-05-18T00:01:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BFOxbiVuDQOe+slbuI+EOOClGtl374vf41RNvXiN01fECDQNJT6tFpwDZGUfKa/dPzuhU266Yisdj6sR8iseCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T18:52:08.416801Z"},"content_sha256":"a039fc918bb464c6970763ac70e32f48db1a4501407a0a9811098d905cc072f5","schema_version":"1.0","event_id":"sha256:a039fc918bb464c6970763ac70e32f48db1a4501407a0a9811098d905cc072f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BX5JIG2QBQXW647NWJWL55CXBN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the potential liquid water environment at Gale crater, Mars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Edgard G. Rivera-Valent\\'in, German M. Mart\\'inez, Katherine M. Primm, Margaret Tolbert, Raina V. Gough, Vincent F. Chevrier","submitted_at":"2018-11-02T13:50:36Z","abstract_excerpt":"The Mars Science Laboratory (MSL) Rover Environmental Monitoring Station (REMS) has now made continuous in-situ meteorological measurements for several martian years at Gale crater, Mars. Of importance in the search for liquid formation are REMS' measurements of ground temperature and in-air measurements of temperature and relative humidity, which is with respect to ice. Such data can constrain the surface and subsurface stability of brines. Here we use updated calibrations to REMS data and consistent relative humidity comparisons (i.e., w.r.t. liquid vs w.r.t. ice) to investigate the potentia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00862","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":""},"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":"2026-05-18T00:01:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1SgXfNmHIigy/wTqMtILtCy7GD9j/Hl1GytS4V2N+Vayu3vujZlWBmzqkjT6xwku4airm7nzV9o8BQQ14VfHBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T18:52:08.417138Z"},"content_sha256":"fc6a337fa02db8d6bb579c4de1df14e8f6c3e64ec287a86517c753df49fb800e","schema_version":"1.0","event_id":"sha256:fc6a337fa02db8d6bb579c4de1df14e8f6c3e64ec287a86517c753df49fb800e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BX5JIG2QBQXW647NWJWL55CXBN/bundle.json","state_url":"https://pith.science/pith/BX5JIG2QBQXW647NWJWL55CXBN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BX5JIG2QBQXW647NWJWL55CXBN/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":"2026-06-28T18:52:08Z","links":{"resolver":"https://pith.science/pith/BX5JIG2QBQXW647NWJWL55CXBN","bundle":"https://pith.science/pith/BX5JIG2QBQXW647NWJWL55CXBN/bundle.json","state":"https://pith.science/pith/BX5JIG2QBQXW647NWJWL55CXBN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BX5JIG2QBQXW647NWJWL55CXBN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BX5JIG2QBQXW647NWJWL55CXBN","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":"74f5222e3b83c42ff1b901e04e2c3ca19006ed0b77bc85ed94a617003a15954a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-11-02T13:50:36Z","title_canon_sha256":"011aec46f54506cfc205b023cdabc39130cd814236f7e0968d4463cad2c88d94"},"schema_version":"1.0","source":{"id":"1811.00862","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00862","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00862v1","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00862","created_at":"2026-05-18T00:01:41Z"},{"alias_kind":"pith_short_12","alias_value":"BX5JIG2QBQXW","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BX5JIG2QBQXW647N","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BX5JIG2Q","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:fc6a337fa02db8d6bb579c4de1df14e8f6c3e64ec287a86517c753df49fb800e","target":"graph","created_at":"2026-05-18T00:01:41Z","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":"The Mars Science Laboratory (MSL) Rover Environmental Monitoring Station (REMS) has now made continuous in-situ meteorological measurements for several martian years at Gale crater, Mars. Of importance in the search for liquid formation are REMS' measurements of ground temperature and in-air measurements of temperature and relative humidity, which is with respect to ice. Such data can constrain the surface and subsurface stability of brines. Here we use updated calibrations to REMS data and consistent relative humidity comparisons (i.e., w.r.t. liquid vs w.r.t. ice) to investigate the potentia","authors_text":"Edgard G. Rivera-Valent\\'in, German M. Mart\\'inez, Katherine M. Primm, Margaret Tolbert, Raina V. Gough, Vincent F. Chevrier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-11-02T13:50:36Z","title":"Constraining the potential liquid water environment at Gale crater, Mars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00862","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:a039fc918bb464c6970763ac70e32f48db1a4501407a0a9811098d905cc072f5","target":"record","created_at":"2026-05-18T00:01:41Z","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":"74f5222e3b83c42ff1b901e04e2c3ca19006ed0b77bc85ed94a617003a15954a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-11-02T13:50:36Z","title_canon_sha256":"011aec46f54506cfc205b023cdabc39130cd814236f7e0968d4463cad2c88d94"},"schema_version":"1.0","source":{"id":"1811.00862","kind":"arxiv","version":1}},"canonical_sha256":"0dfa941b500c2f6f73edb26cbef4570b748cfdd83fe18ccd887a2f5eedb4c38a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0dfa941b500c2f6f73edb26cbef4570b748cfdd83fe18ccd887a2f5eedb4c38a","first_computed_at":"2026-05-18T00:01:41.930441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:41.930441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bxOCU87vF4d33Kt8vlqTa+84uRHKz/2qa0p6lFdR9XkCzorz/4AoYvPqcYYzeRLiOiaNohWeAoltbQQ0IMTeAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:41.930945Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.00862","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a039fc918bb464c6970763ac70e32f48db1a4501407a0a9811098d905cc072f5","sha256:fc6a337fa02db8d6bb579c4de1df14e8f6c3e64ec287a86517c753df49fb800e"],"state_sha256":"c96387ede60d932238479a9f8aeedea04675351d87993bbfbc2f758f664bbe60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBA7bzykr7krL5QgJy9kn7eU+rDgSCfXuUBnmsk3xfNF7VKoH+H6Pd46JYgHrYPcrLitUn2G19vWZKMoCKWDCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T18:52:08.419122Z","bundle_sha256":"b6a64248f5abd08957ce0cc52609dc4635074a3e8730e67486255dfee38c83dc"}}