{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QEV2B3Z34L32KZBGZL7PGKXM7B","short_pith_number":"pith:QEV2B3Z3","canonical_record":{"source":{"id":"1810.08719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-10-20T00:22:24Z","cross_cats_sorted":[],"title_canon_sha256":"697d5ce1f6395a557985e5adef95c1ba9de3008da4fc07fdd5904f67ca36af3b","abstract_canon_sha256":"2fec06507a90906483f65c304cd1c79d10ba2f1aad092f1a05d195de2419e680"},"schema_version":"1.0"},"canonical_sha256":"812ba0ef3be2f7a56426cafef32aecf8595888419b0502e1cca60b680e07b1af","source":{"kind":"arxiv","id":"1810.08719","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08719","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08719v1","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08719","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"pith_short_12","alias_value":"QEV2B3Z34L32","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QEV2B3Z34L32KZBG","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QEV2B3Z3","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QEV2B3Z34L32KZBGZL7PGKXM7B","target":"record","payload":{"canonical_record":{"source":{"id":"1810.08719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-10-20T00:22:24Z","cross_cats_sorted":[],"title_canon_sha256":"697d5ce1f6395a557985e5adef95c1ba9de3008da4fc07fdd5904f67ca36af3b","abstract_canon_sha256":"2fec06507a90906483f65c304cd1c79d10ba2f1aad092f1a05d195de2419e680"},"schema_version":"1.0"},"canonical_sha256":"812ba0ef3be2f7a56426cafef32aecf8595888419b0502e1cca60b680e07b1af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:43.719490Z","signature_b64":"c0QxUMDmBevUIURWbEGVLsZjreAXXafDgrISdIuN3tM6AdqRzQsO7Aj63CKz1vkFN7uUWAVwc4bQqhhjvu5KAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"812ba0ef3be2f7a56426cafef32aecf8595888419b0502e1cca60b680e07b1af","last_reissued_at":"2026-05-18T00:02:43.719037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:43.719037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.08719","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":"2026-05-18T00:02:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VTBOuQ6lHgfHTcDqiW59Ngp9uZYXVucoviiseyBwNlH4l+sZXsJqBlt6w7F+xnUpyw0hfVsiSSip+r1tV9fiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T08:44:43.309909Z"},"content_sha256":"c613367e4ce8181fb4abd3a1b13d4267072569554b71c52d9e642b22b320404a","schema_version":"1.0","event_id":"sha256:c613367e4ce8181fb4abd3a1b13d4267072569554b71c52d9e642b22b320404a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QEV2B3Z34L32KZBGZL7PGKXM7B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep Reinforcement Learning for Six Degree-of-Freedom Planetary Powered Descent and Landing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Brian Gaudet, Richard Linares, Roberto Furfaro","submitted_at":"2018-10-20T00:22:24Z","abstract_excerpt":"Future Mars missions will require advanced guidance, navigation, and control algorithms for the powered descent phase to target specific surface locations and achieve pinpoint accuracy (landing error ellipse $<$ 5 m radius). The latter requires both a navigation system capable of estimating the lander's state in real-time and a guidance and control system that can map the estimated lander state to a commanded thrust for each lander engine. In this paper, we present a novel integrated guidance and control algorithm designed by applying the principles of reinforcement learning theory. The latter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08719","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":"2026-05-18T00:02:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mDpNNXCM3GPaSC+YFErwX4NCEp+MbFUbmw8Y6QcZVVV0mLzgs830H7UI8q+11fACJxIMXqoAINWbvnqqnCToCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T08:44:43.310277Z"},"content_sha256":"384ab86453443451e6cff2b32c9855b4859bf66004dc625323d0c9dd963cfbb4","schema_version":"1.0","event_id":"sha256:384ab86453443451e6cff2b32c9855b4859bf66004dc625323d0c9dd963cfbb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/bundle.json","state_url":"https://pith.science/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/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":"2026-06-23T08:44:43Z","links":{"resolver":"https://pith.science/pith/QEV2B3Z34L32KZBGZL7PGKXM7B","bundle":"https://pith.science/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/bundle.json","state":"https://pith.science/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QEV2B3Z34L32KZBGZL7PGKXM7B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QEV2B3Z34L32KZBGZL7PGKXM7B","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":"2fec06507a90906483f65c304cd1c79d10ba2f1aad092f1a05d195de2419e680","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-10-20T00:22:24Z","title_canon_sha256":"697d5ce1f6395a557985e5adef95c1ba9de3008da4fc07fdd5904f67ca36af3b"},"schema_version":"1.0","source":{"id":"1810.08719","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08719","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08719v1","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08719","created_at":"2026-05-18T00:02:43Z"},{"alias_kind":"pith_short_12","alias_value":"QEV2B3Z34L32","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QEV2B3Z34L32KZBG","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QEV2B3Z3","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:384ab86453443451e6cff2b32c9855b4859bf66004dc625323d0c9dd963cfbb4","target":"graph","created_at":"2026-05-18T00:02:43Z","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":"Future Mars missions will require advanced guidance, navigation, and control algorithms for the powered descent phase to target specific surface locations and achieve pinpoint accuracy (landing error ellipse $<$ 5 m radius). The latter requires both a navigation system capable of estimating the lander's state in real-time and a guidance and control system that can map the estimated lander state to a commanded thrust for each lander engine. In this paper, we present a novel integrated guidance and control algorithm designed by applying the principles of reinforcement learning theory. The latter","authors_text":"Brian Gaudet, Richard Linares, Roberto Furfaro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-10-20T00:22:24Z","title":"Deep Reinforcement Learning for Six Degree-of-Freedom Planetary Powered Descent and Landing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08719","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:c613367e4ce8181fb4abd3a1b13d4267072569554b71c52d9e642b22b320404a","target":"record","created_at":"2026-05-18T00:02:43Z","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":"2fec06507a90906483f65c304cd1c79d10ba2f1aad092f1a05d195de2419e680","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-10-20T00:22:24Z","title_canon_sha256":"697d5ce1f6395a557985e5adef95c1ba9de3008da4fc07fdd5904f67ca36af3b"},"schema_version":"1.0","source":{"id":"1810.08719","kind":"arxiv","version":1}},"canonical_sha256":"812ba0ef3be2f7a56426cafef32aecf8595888419b0502e1cca60b680e07b1af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"812ba0ef3be2f7a56426cafef32aecf8595888419b0502e1cca60b680e07b1af","first_computed_at":"2026-05-18T00:02:43.719037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:43.719037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c0QxUMDmBevUIURWbEGVLsZjreAXXafDgrISdIuN3tM6AdqRzQsO7Aj63CKz1vkFN7uUWAVwc4bQqhhjvu5KAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:43.719490Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.08719","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c613367e4ce8181fb4abd3a1b13d4267072569554b71c52d9e642b22b320404a","sha256:384ab86453443451e6cff2b32c9855b4859bf66004dc625323d0c9dd963cfbb4"],"state_sha256":"012d7beeae0171c0abb91a2729dad8329fecaa9d170aeb27af64dc9119944be0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vN9HtCfqBSonjBrjjfoAjd/GytHp5vUbNzoFmnX5uKvWv/dvwXmAm8jiaE5N0NFBdvvU/W7XvTQruN3/p/fYCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T08:44:43.312414Z","bundle_sha256":"f5cc2a0c910f3162e57d857f0f199a085ee747f5fcdc286f65a89740879f013c"}}