{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XTWNQOFJFQHGDLHL4P45HW2WRZ","short_pith_number":"pith:XTWNQOFJ","canonical_record":{"source":{"id":"1806.08185","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T11:54:25Z","cross_cats_sorted":[],"title_canon_sha256":"c58849abe0e44d12e04eba17d6d76e97277d462ba9ead744b2b2a8e63acad73f","abstract_canon_sha256":"d61e566ee98b641f9c004e367a76201be9ccea915064f4732a00854597ae4900"},"schema_version":"1.0"},"canonical_sha256":"bcecd838a92c0e61acebe3f9d3db568e551ab682d48f1aed00cfe58367274f6f","source":{"kind":"arxiv","id":"1806.08185","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08185","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08185v1","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08185","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"pith_short_12","alias_value":"XTWNQOFJFQHG","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTWNQOFJFQHGDLHL","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTWNQOFJ","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XTWNQOFJFQHGDLHL4P45HW2WRZ","target":"record","payload":{"canonical_record":{"source":{"id":"1806.08185","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T11:54:25Z","cross_cats_sorted":[],"title_canon_sha256":"c58849abe0e44d12e04eba17d6d76e97277d462ba9ead744b2b2a8e63acad73f","abstract_canon_sha256":"d61e566ee98b641f9c004e367a76201be9ccea915064f4732a00854597ae4900"},"schema_version":"1.0"},"canonical_sha256":"bcecd838a92c0e61acebe3f9d3db568e551ab682d48f1aed00cfe58367274f6f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:41.778572Z","signature_b64":"uaHhppTD1qMX6MxTyTsz9wYEX+/r70Q2Vl5TEf4fQnL4IM3D6Ki5O3dHZxS7WkYLMfAUReEHslWMkrsxyghwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcecd838a92c0e61acebe3f9d3db568e551ab682d48f1aed00cfe58367274f6f","last_reissued_at":"2026-05-18T00:12:41.777917Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:41.777917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.08185","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":"2026-05-18T00:12:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xer2Vo+cSBbtxyHymPSA+nsf3aQnQ8n9kzHMyoWEmj8/ZuQk4FYuuAMmTupAyToJ//TfT5idDd1eEJF4fe78BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:40:34.118149Z"},"content_sha256":"6dc3024e3020c24a2deb57c23d1c921fd129dbbcaf370dc19c6b4991c9b2fabd","schema_version":"1.0","event_id":"sha256:6dc3024e3020c24a2deb57c23d1c921fd129dbbcaf370dc19c6b4991c9b2fabd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XTWNQOFJFQHGDLHL4P45HW2WRZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the minimum orbital intersection distance computation: a new effective method","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Jesus Pelaez, Jose M. Hedo, Manuel Ruiz","submitted_at":"2018-06-21T11:54:25Z","abstract_excerpt":"The computation of the Minimum Orbital Intersection Distance (MOID) is an old, but increasingly relevant problem. Fast and precise methods for MOID computation are needed to select potentially hazardous asteroids from a large catalogue. The same applies to debris with respect to spacecraft. An iterative method that strictly meets these two premises is presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08185","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":"2026-05-18T00:12:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S5BQGPJQy/F1xeQjFwYtjV/6K5/HQOGKvvw/3p0lDINHeHAvIvgE+559NfnBE5jMteYE6w0fQANorxZ0HAiLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:40:34.118512Z"},"content_sha256":"1b7def3165001515ba11e022b0150fe7ee36641790f2e63cc641aca97fa77afe","schema_version":"1.0","event_id":"sha256:1b7def3165001515ba11e022b0150fe7ee36641790f2e63cc641aca97fa77afe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/bundle.json","state_url":"https://pith.science/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/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":"2026-06-05T00:40:34Z","links":{"resolver":"https://pith.science/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ","bundle":"https://pith.science/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/bundle.json","state":"https://pith.science/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTWNQOFJFQHGDLHL4P45HW2WRZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XTWNQOFJFQHGDLHL4P45HW2WRZ","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":"d61e566ee98b641f9c004e367a76201be9ccea915064f4732a00854597ae4900","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T11:54:25Z","title_canon_sha256":"c58849abe0e44d12e04eba17d6d76e97277d462ba9ead744b2b2a8e63acad73f"},"schema_version":"1.0","source":{"id":"1806.08185","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08185","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08185v1","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08185","created_at":"2026-05-18T00:12:41Z"},{"alias_kind":"pith_short_12","alias_value":"XTWNQOFJFQHG","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTWNQOFJFQHGDLHL","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTWNQOFJ","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:1b7def3165001515ba11e022b0150fe7ee36641790f2e63cc641aca97fa77afe","target":"graph","created_at":"2026-05-18T00:12:41Z","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 computation of the Minimum Orbital Intersection Distance (MOID) is an old, but increasingly relevant problem. Fast and precise methods for MOID computation are needed to select potentially hazardous asteroids from a large catalogue. The same applies to debris with respect to spacecraft. An iterative method that strictly meets these two premises is presented.","authors_text":"Jesus Pelaez, Jose M. Hedo, Manuel Ruiz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T11:54:25Z","title":"On the minimum orbital intersection distance computation: a new effective method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08185","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":"sha256:6dc3024e3020c24a2deb57c23d1c921fd129dbbcaf370dc19c6b4991c9b2fabd","target":"record","created_at":"2026-05-18T00:12:41Z","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":"d61e566ee98b641f9c004e367a76201be9ccea915064f4732a00854597ae4900","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T11:54:25Z","title_canon_sha256":"c58849abe0e44d12e04eba17d6d76e97277d462ba9ead744b2b2a8e63acad73f"},"schema_version":"1.0","source":{"id":"1806.08185","kind":"arxiv","version":1}},"canonical_sha256":"bcecd838a92c0e61acebe3f9d3db568e551ab682d48f1aed00cfe58367274f6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcecd838a92c0e61acebe3f9d3db568e551ab682d48f1aed00cfe58367274f6f","first_computed_at":"2026-05-18T00:12:41.777917Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:41.777917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uaHhppTD1qMX6MxTyTsz9wYEX+/r70Q2Vl5TEf4fQnL4IM3D6Ki5O3dHZxS7WkYLMfAUReEHslWMkrsxyghwBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:41.778572Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.08185","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6dc3024e3020c24a2deb57c23d1c921fd129dbbcaf370dc19c6b4991c9b2fabd","sha256:1b7def3165001515ba11e022b0150fe7ee36641790f2e63cc641aca97fa77afe"],"state_sha256":"4d9f124b6cb2fc989b48994f269ee93d2bf86288e28ea7a7c2b056d86fdf306c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xh6U0w71DkX+bccfyUgsC8vHsJJq0zjOw4iksVwW50VLed4eOgzZxgJw6pywMheyJ+FspypYxKUs/qzgNwRwAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:40:34.120730Z","bundle_sha256":"a39961036fe61eb1b72779636df04b4a2b2a90a087a4516b07a08fbb201e1c32"}}