{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:7NU2R4YS7U4JP57XN6DL7CZVDT","short_pith_number":"pith:7NU2R4YS","canonical_record":{"source":{"id":"0812.2635","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-14T19:05:39Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"b427539eff366f1e3104c3fefa0fd39677a383e0fa399478b6ce11fec7c986b2","abstract_canon_sha256":"79fe021b282f2ce6e0d836f5e32a76f5fbdc0fab1c4c80ea17390ded0bee1ac0"},"schema_version":"1.0"},"canonical_sha256":"fb69a8f312fd3897f7f76f86bf8b351cd4db1e192ce468611356b811397459fd","source":{"kind":"arxiv","id":"0812.2635","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.2635","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"arxiv_version","alias_value":"0812.2635v3","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.2635","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"pith_short_12","alias_value":"7NU2R4YS7U4J","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7NU2R4YS7U4JP57X","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7NU2R4YS","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:7NU2R4YS7U4JP57XN6DL7CZVDT","target":"record","payload":{"canonical_record":{"source":{"id":"0812.2635","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-14T19:05:39Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"b427539eff366f1e3104c3fefa0fd39677a383e0fa399478b6ce11fec7c986b2","abstract_canon_sha256":"79fe021b282f2ce6e0d836f5e32a76f5fbdc0fab1c4c80ea17390ded0bee1ac0"},"schema_version":"1.0"},"canonical_sha256":"fb69a8f312fd3897f7f76f86bf8b351cd4db1e192ce468611356b811397459fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:56.696473Z","signature_b64":"nPFkPGkups5Fw5ld1IUU3CiLkmNy8reLi0yAVvNEf6Qmqtw1a8e2cA0BdPEHpQJtv9n+ZnfuskDcLjRsXzcUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb69a8f312fd3897f7f76f86bf8b351cd4db1e192ce468611356b811397459fd","last_reissued_at":"2026-05-18T02:24:56.695773Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:56.695773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.2635","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:24:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9gTDiI/Zc693kqP4W0Iu1GHuI26EWRe0xhC70rxFEBDFeO5f9V8RP40FMJSJo9uIlZDdw4vMV/mJRTO5KxO5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:45:36.144633Z"},"content_sha256":"82785b62f3bcd7b143c4d7ef2b95fda1e938785886741d3ba4e9fc5987458931","schema_version":"1.0","event_id":"sha256:82785b62f3bcd7b143c4d7ef2b95fda1e938785886741d3ba4e9fc5987458931"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:7NU2R4YS7U4JP57XN6DL7CZVDT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pulsar Navigation in the Solar System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph","authors_text":"Jiang Dong","submitted_at":"2008-12-14T19:05:39Z","abstract_excerpt":"The X-ray Navigation and Autonomous position Verification (XNAV) is tested which use the Crab pulsar under the Space Test Program that use starlight refraction. It provide the way that the spacecraft could autonomously determine its position with respect to an inertial origin. Now we analysis the sensitivity of the exist instrument and the signal process that use radio pulsar navigation and discuss the integrated navigation which use radio pulsar, then give the different navigation mission analysis and design process basically which include the space, the airborne, the ship and the land of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.2635","kind":"arxiv","version":3},"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":"2026-05-18T02:24:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RwWXnl2/dxpaNKvS5kfX0JPEvLJ/b3UjOmF9tIhJXo2KtB22fpsaQFYa+sEdH8LI/iS96M6uVOx4y1GrrWknDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:45:36.144976Z"},"content_sha256":"5b8fc76734ac3ff5d4be46071ab09220dcbf800796bb31720cdb3a129c8a5ba9","schema_version":"1.0","event_id":"sha256:5b8fc76734ac3ff5d4be46071ab09220dcbf800796bb31720cdb3a129c8a5ba9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/bundle.json","state_url":"https://pith.science/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/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":"2026-06-03T10:45:36Z","links":{"resolver":"https://pith.science/pith/7NU2R4YS7U4JP57XN6DL7CZVDT","bundle":"https://pith.science/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/bundle.json","state":"https://pith.science/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7NU2R4YS7U4JP57XN6DL7CZVDT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:7NU2R4YS7U4JP57XN6DL7CZVDT","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":"79fe021b282f2ce6e0d836f5e32a76f5fbdc0fab1c4c80ea17390ded0bee1ac0","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-14T19:05:39Z","title_canon_sha256":"b427539eff366f1e3104c3fefa0fd39677a383e0fa399478b6ce11fec7c986b2"},"schema_version":"1.0","source":{"id":"0812.2635","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.2635","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"arxiv_version","alias_value":"0812.2635v3","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.2635","created_at":"2026-05-18T02:24:56Z"},{"alias_kind":"pith_short_12","alias_value":"7NU2R4YS7U4J","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7NU2R4YS7U4JP57X","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7NU2R4YS","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:5b8fc76734ac3ff5d4be46071ab09220dcbf800796bb31720cdb3a129c8a5ba9","target":"graph","created_at":"2026-05-18T02:24:56Z","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 X-ray Navigation and Autonomous position Verification (XNAV) is tested which use the Crab pulsar under the Space Test Program that use starlight refraction. It provide the way that the spacecraft could autonomously determine its position with respect to an inertial origin. Now we analysis the sensitivity of the exist instrument and the signal process that use radio pulsar navigation and discuss the integrated navigation which use radio pulsar, then give the different navigation mission analysis and design process basically which include the space, the airborne, the ship and the land of the","authors_text":"Jiang Dong","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-14T19:05:39Z","title":"Pulsar Navigation in the Solar System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.2635","kind":"arxiv","version":3},"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":"sha256:82785b62f3bcd7b143c4d7ef2b95fda1e938785886741d3ba4e9fc5987458931","target":"record","created_at":"2026-05-18T02:24:56Z","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":"79fe021b282f2ce6e0d836f5e32a76f5fbdc0fab1c4c80ea17390ded0bee1ac0","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-14T19:05:39Z","title_canon_sha256":"b427539eff366f1e3104c3fefa0fd39677a383e0fa399478b6ce11fec7c986b2"},"schema_version":"1.0","source":{"id":"0812.2635","kind":"arxiv","version":3}},"canonical_sha256":"fb69a8f312fd3897f7f76f86bf8b351cd4db1e192ce468611356b811397459fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb69a8f312fd3897f7f76f86bf8b351cd4db1e192ce468611356b811397459fd","first_computed_at":"2026-05-18T02:24:56.695773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:56.695773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nPFkPGkups5Fw5ld1IUU3CiLkmNy8reLi0yAVvNEf6Qmqtw1a8e2cA0BdPEHpQJtv9n+ZnfuskDcLjRsXzcUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:56.696473Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.2635","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82785b62f3bcd7b143c4d7ef2b95fda1e938785886741d3ba4e9fc5987458931","sha256:5b8fc76734ac3ff5d4be46071ab09220dcbf800796bb31720cdb3a129c8a5ba9"],"state_sha256":"921dfd7b00018bd25a1f2f0673a159269098a6e5616719914a3fa922850c35b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"waGtnWgZD7HVXsgRFu7XtzZHtkwtigDwCjm+riVuX3xXtK1Vyxk6PVSeIFTP4RXJJv0zNlDULsU2VVGjDHigAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T10:45:36.146947Z","bundle_sha256":"4db593ba456e2241f23e68dd6c7e1241345870881cb256c9fd305d96a7251609"}}