{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:E76Y2R3DMSKG3F7S2IQVOJKD2P","short_pith_number":"pith:E76Y2R3D","canonical_record":{"source":{"id":"1812.11434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-29T20:31:47Z","cross_cats_sorted":[],"title_canon_sha256":"a37eb2673f0cc6583c8ee4a44aeca12b78fc693b0e9b4caab6091cd0c9ebbd1c","abstract_canon_sha256":"c4b4edfca4e50b7707a97cbd94943a10170101fd7e56e1c1c8d3055dc02019ea"},"schema_version":"1.0"},"canonical_sha256":"27fd8d476364946d97f2d221572543d3d1709905bda493854649120000c2f1c2","source":{"kind":"arxiv","id":"1812.11434","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.11434","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"arxiv_version","alias_value":"1812.11434v1","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.11434","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"pith_short_12","alias_value":"E76Y2R3DMSKG","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"E76Y2R3DMSKG3F7S","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"E76Y2R3D","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:E76Y2R3DMSKG3F7S2IQVOJKD2P","target":"record","payload":{"canonical_record":{"source":{"id":"1812.11434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-29T20:31:47Z","cross_cats_sorted":[],"title_canon_sha256":"a37eb2673f0cc6583c8ee4a44aeca12b78fc693b0e9b4caab6091cd0c9ebbd1c","abstract_canon_sha256":"c4b4edfca4e50b7707a97cbd94943a10170101fd7e56e1c1c8d3055dc02019ea"},"schema_version":"1.0"},"canonical_sha256":"27fd8d476364946d97f2d221572543d3d1709905bda493854649120000c2f1c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:11.971024Z","signature_b64":"CunQ5kZWZ3YXzmV1akMerMT0WHYJWNrS3zUQrIF9Z9z/dVtqigKXkMx9y9c0YqCmwZnHhjMGOf9VuwSTuLhaBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27fd8d476364946d97f2d221572543d3d1709905bda493854649120000c2f1c2","last_reissued_at":"2026-05-17T23:57:11.970638Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:11.970638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.11434","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":"2026-05-17T23:57:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qysjzMpmcLY/t7QKuqynNQs5wmkX47WkXmGGJyc/e9ErpYwCnIKcLoPvd1+XtxKH9JTZogwwra1VozP/Bc14AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:08:52.088087Z"},"content_sha256":"9594ac067626d31b7079be108b54cfc8815dca5777e01a56b316fcf83129a7be","schema_version":"1.0","event_id":"sha256:9594ac067626d31b7079be108b54cfc8815dca5777e01a56b316fcf83129a7be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:E76Y2R3DMSKG3F7S2IQVOJKD2P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Examining MAVEN NGIMS Neutral Data Response to Solar Wind Drivers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"H.N. Williamson, M.K. Elrod, R.E. Johnson, S.M. Curry","submitted_at":"2018-12-29T20:31:47Z","abstract_excerpt":"The Martian upper atmosphere is known to vary diurnally and seasonally due to changing amounts of solar radiation. However, in the upper thermosphere and exosphere, the neutrals are also subject to ion precipitation. This can increase the temperature in the region of precipitation, resulting in density changes that might be seen in in situ data (Fang et al. 2013). Therefore, we examine neutral density data from the MAVEN Neutral Gas and Ion Mass Spectrometer (NGIMS) in Mars-Solar-Electric (MSE) coordinates, where location is determined by the direction of the solar wind convective electric fie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.11434","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":"2026-05-17T23:57:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3y4pq4xE9nLwkOIkw/Czpf9gg/adWdgvmzS61wWD5VMuKVLcBrYkoF/4VHcNxe7900icgAMz1Cj/v3pxo775Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:08:52.088943Z"},"content_sha256":"9a71683263e0baeb38280fc3e01c7fe93b49ab053726acc3c7d63666687e35c9","schema_version":"1.0","event_id":"sha256:9a71683263e0baeb38280fc3e01c7fe93b49ab053726acc3c7d63666687e35c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/bundle.json","state_url":"https://pith.science/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/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":"2026-06-07T21:08:52Z","links":{"resolver":"https://pith.science/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P","bundle":"https://pith.science/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/bundle.json","state":"https://pith.science/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E76Y2R3DMSKG3F7S2IQVOJKD2P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:E76Y2R3DMSKG3F7S2IQVOJKD2P","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":"c4b4edfca4e50b7707a97cbd94943a10170101fd7e56e1c1c8d3055dc02019ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-29T20:31:47Z","title_canon_sha256":"a37eb2673f0cc6583c8ee4a44aeca12b78fc693b0e9b4caab6091cd0c9ebbd1c"},"schema_version":"1.0","source":{"id":"1812.11434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.11434","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"arxiv_version","alias_value":"1812.11434v1","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.11434","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"pith_short_12","alias_value":"E76Y2R3DMSKG","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"E76Y2R3DMSKG3F7S","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"E76Y2R3D","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:9a71683263e0baeb38280fc3e01c7fe93b49ab053726acc3c7d63666687e35c9","target":"graph","created_at":"2026-05-17T23:57:11Z","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 Martian upper atmosphere is known to vary diurnally and seasonally due to changing amounts of solar radiation. However, in the upper thermosphere and exosphere, the neutrals are also subject to ion precipitation. This can increase the temperature in the region of precipitation, resulting in density changes that might be seen in in situ data (Fang et al. 2013). Therefore, we examine neutral density data from the MAVEN Neutral Gas and Ion Mass Spectrometer (NGIMS) in Mars-Solar-Electric (MSE) coordinates, where location is determined by the direction of the solar wind convective electric fie","authors_text":"H.N. Williamson, M.K. Elrod, R.E. Johnson, S.M. Curry","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-29T20:31:47Z","title":"Examining MAVEN NGIMS Neutral Data Response to Solar Wind Drivers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.11434","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":"sha256:9594ac067626d31b7079be108b54cfc8815dca5777e01a56b316fcf83129a7be","target":"record","created_at":"2026-05-17T23:57:11Z","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":"c4b4edfca4e50b7707a97cbd94943a10170101fd7e56e1c1c8d3055dc02019ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-29T20:31:47Z","title_canon_sha256":"a37eb2673f0cc6583c8ee4a44aeca12b78fc693b0e9b4caab6091cd0c9ebbd1c"},"schema_version":"1.0","source":{"id":"1812.11434","kind":"arxiv","version":1}},"canonical_sha256":"27fd8d476364946d97f2d221572543d3d1709905bda493854649120000c2f1c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27fd8d476364946d97f2d221572543d3d1709905bda493854649120000c2f1c2","first_computed_at":"2026-05-17T23:57:11.970638Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:11.970638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CunQ5kZWZ3YXzmV1akMerMT0WHYJWNrS3zUQrIF9Z9z/dVtqigKXkMx9y9c0YqCmwZnHhjMGOf9VuwSTuLhaBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:11.971024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.11434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9594ac067626d31b7079be108b54cfc8815dca5777e01a56b316fcf83129a7be","sha256:9a71683263e0baeb38280fc3e01c7fe93b49ab053726acc3c7d63666687e35c9"],"state_sha256":"115d1bfd1d9a6830192f3841d4edbff2653e78ce3abe162df40da675c287379e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2w4ce5UwBREPvmSC+IO5+i+zbc98zHPQIGOIhSvQzYpu67FVOgnEGuVL54gMMB9VOis2vjUyiUtlryk+3Jo7Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T21:08:52.093044Z","bundle_sha256":"0655f891566395ea209e5b4345226016c58f9aa6e6eba923d0aff696282a9361"}}