{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:TEGP7O36FTGMOPKX3MBMHYVKMX","short_pith_number":"pith:TEGP7O36","canonical_record":{"source":{"id":"2201.04240","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-01-11T23:40:05Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"5473f722612c07e0398e924a1f5e871f75024355a22e24783bd5e5c43abc3848","abstract_canon_sha256":"0c24da253f8a742ff9152109a73003ef48cc437938ff75502d6e11322304762e"},"schema_version":"1.0"},"canonical_sha256":"990cffbb7e2cccc73d57db02c3e2aa65e8500a68f35b861dd8ca82a49dd334e6","source":{"kind":"arxiv","id":"2201.04240","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.04240","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"arxiv_version","alias_value":"2201.04240v1","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.04240","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_12","alias_value":"TEGP7O36FTGM","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_16","alias_value":"TEGP7O36FTGMOPKX","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_8","alias_value":"TEGP7O36","created_at":"2026-07-05T04:48:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:TEGP7O36FTGMOPKX3MBMHYVKMX","target":"record","payload":{"canonical_record":{"source":{"id":"2201.04240","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-01-11T23:40:05Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"5473f722612c07e0398e924a1f5e871f75024355a22e24783bd5e5c43abc3848","abstract_canon_sha256":"0c24da253f8a742ff9152109a73003ef48cc437938ff75502d6e11322304762e"},"schema_version":"1.0"},"canonical_sha256":"990cffbb7e2cccc73d57db02c3e2aa65e8500a68f35b861dd8ca82a49dd334e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:48:41.024359Z","signature_b64":"lRfO7/QvSNK0GIeB6LKQoN2DIaU4nFfoXGzvNjqH9/oPhQN6ed/aAYpVRGQORjT2nsLNMalbZSbgZ45xmYunAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"990cffbb7e2cccc73d57db02c3e2aa65e8500a68f35b861dd8ca82a49dd334e6","last_reissued_at":"2026-07-05T04:48:41.023882Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:48:41.023882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.04240","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":"2026-07-05T04:48:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SLqlHVhwQZf7W3vsvfaEfTSEYVTlHOXNF0ZshsjLdwKepmqX9/XG5ekSP0W6d5IDJOm75BEKb24KOqriUp0WBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T06:45:18.876307Z"},"content_sha256":"6a6de7d22c3ef7e326536b295fd3dbf4b7eb2330adc5765800dc987c2e3de1c9","schema_version":"1.0","event_id":"sha256:6a6de7d22c3ef7e326536b295fd3dbf4b7eb2330adc5765800dc987c2e3de1c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:TEGP7O36FTGMOPKX3MBMHYVKMX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Project Lyra: A Mission to 1I/'Oumuamua without Solar Oberth Manoeuvre","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"Adam Hibberd, Andreas Hein, Marshall Eubanks, Robert Kennedy III","submitted_at":"2022-01-11T23:40:05Z","abstract_excerpt":"To settle the question of the nature of the interstellar object 1I/'Oumuamua requires in-situ observations via a spacecraft, as the object is already out of range of existing telescopes. Most previous proposals for reaching 1I/'Oumuamua using near-term technologies are based on the Solar Oberth Manoeuvre (SOM), as trajectories without the SOM are generally significantly inferior in terms of lower mission duration and higher total velocity requirement. While the SOM allows huge velocity gains, it is also technically challenging and thereby increases programmatic and mission-related risks. In th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.04240","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2201.04240/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:48:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rP4DARFqktpjdUlU/erMm+gPpQKNitrP7v3v+N6HyNXiKnzTij8U0WMPVnlkr5x4tzbUzenkWiw7G7Lkv8usBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T06:45:18.876870Z"},"content_sha256":"f4e35a67952e78c05926e636c0873371e5273fd92c2863fa627ff8b16165f362","schema_version":"1.0","event_id":"sha256:f4e35a67952e78c05926e636c0873371e5273fd92c2863fa627ff8b16165f362"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/bundle.json","state_url":"https://pith.science/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/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":"2026-08-22T06:45:18Z","links":{"resolver":"https://pith.science/pith/TEGP7O36FTGMOPKX3MBMHYVKMX","bundle":"https://pith.science/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/bundle.json","state":"https://pith.science/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TEGP7O36FTGMOPKX3MBMHYVKMX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TEGP7O36FTGMOPKX3MBMHYVKMX","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":"0c24da253f8a742ff9152109a73003ef48cc437938ff75502d6e11322304762e","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-01-11T23:40:05Z","title_canon_sha256":"5473f722612c07e0398e924a1f5e871f75024355a22e24783bd5e5c43abc3848"},"schema_version":"1.0","source":{"id":"2201.04240","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.04240","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"arxiv_version","alias_value":"2201.04240v1","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.04240","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_12","alias_value":"TEGP7O36FTGM","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_16","alias_value":"TEGP7O36FTGMOPKX","created_at":"2026-07-05T04:48:41Z"},{"alias_kind":"pith_short_8","alias_value":"TEGP7O36","created_at":"2026-07-05T04:48:41Z"}],"graph_snapshots":[{"event_id":"sha256:f4e35a67952e78c05926e636c0873371e5273fd92c2863fa627ff8b16165f362","target":"graph","created_at":"2026-07-05T04:48:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2201.04240/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To settle the question of the nature of the interstellar object 1I/'Oumuamua requires in-situ observations via a spacecraft, as the object is already out of range of existing telescopes. Most previous proposals for reaching 1I/'Oumuamua using near-term technologies are based on the Solar Oberth Manoeuvre (SOM), as trajectories without the SOM are generally significantly inferior in terms of lower mission duration and higher total velocity requirement. While the SOM allows huge velocity gains, it is also technically challenging and thereby increases programmatic and mission-related risks. In th","authors_text":"Adam Hibberd, Andreas Hein, Marshall Eubanks, Robert Kennedy III","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-01-11T23:40:05Z","title":"Project Lyra: A Mission to 1I/'Oumuamua without Solar Oberth Manoeuvre"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.04240","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":"sha256:6a6de7d22c3ef7e326536b295fd3dbf4b7eb2330adc5765800dc987c2e3de1c9","target":"record","created_at":"2026-07-05T04:48:41Z","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":"0c24da253f8a742ff9152109a73003ef48cc437938ff75502d6e11322304762e","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-01-11T23:40:05Z","title_canon_sha256":"5473f722612c07e0398e924a1f5e871f75024355a22e24783bd5e5c43abc3848"},"schema_version":"1.0","source":{"id":"2201.04240","kind":"arxiv","version":1}},"canonical_sha256":"990cffbb7e2cccc73d57db02c3e2aa65e8500a68f35b861dd8ca82a49dd334e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"990cffbb7e2cccc73d57db02c3e2aa65e8500a68f35b861dd8ca82a49dd334e6","first_computed_at":"2026-07-05T04:48:41.023882Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:48:41.023882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lRfO7/QvSNK0GIeB6LKQoN2DIaU4nFfoXGzvNjqH9/oPhQN6ed/aAYpVRGQORjT2nsLNMalbZSbgZ45xmYunAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:48:41.024359Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.04240","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a6de7d22c3ef7e326536b295fd3dbf4b7eb2330adc5765800dc987c2e3de1c9","sha256:f4e35a67952e78c05926e636c0873371e5273fd92c2863fa627ff8b16165f362"],"state_sha256":"71a3d08b83d57ca70592347bf8fcefaf428a17232df89b725bf0f5e4e3b739cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XNYQEjTGyP1uBkhMTTVEGVAcS7KFKop9Tisjle9Y/Bypp3TXqVff8j92+XXwRsvDuRdEoVaoQz/yNHtbbdKPDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T06:45:18.880283Z","bundle_sha256":"067d57a6e922cc62deb9b35664a1d6b5174b3e45047ceb66b3ef1327983faeae"}}