{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:R5MLK4U5WY6Z6E7QOPKGY3XG77","short_pith_number":"pith:R5MLK4U5","canonical_record":{"source":{"id":"1204.5990","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-04-26T17:26:07Z","cross_cats_sorted":[],"title_canon_sha256":"6f188c088e1c3bfb12c2b3ceaf04263eecc73aed4aaab89b8b11fbbd1924e3c2","abstract_canon_sha256":"7b55e34195c7df3e19feeb5add424fe7812eb1c74f90f76abb404d0cccfcb86f"},"schema_version":"1.0"},"canonical_sha256":"8f58b5729db63d9f13f073d46c6ee6ffc2b4efe600f30a14db8b3221223165e6","source":{"kind":"arxiv","id":"1204.5990","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5990","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5990v2","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5990","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"pith_short_12","alias_value":"R5MLK4U5WY6Z","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R5MLK4U5WY6Z6E7Q","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R5MLK4U5","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:R5MLK4U5WY6Z6E7QOPKGY3XG77","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5990","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-04-26T17:26:07Z","cross_cats_sorted":[],"title_canon_sha256":"6f188c088e1c3bfb12c2b3ceaf04263eecc73aed4aaab89b8b11fbbd1924e3c2","abstract_canon_sha256":"7b55e34195c7df3e19feeb5add424fe7812eb1c74f90f76abb404d0cccfcb86f"},"schema_version":"1.0"},"canonical_sha256":"8f58b5729db63d9f13f073d46c6ee6ffc2b4efe600f30a14db8b3221223165e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:43.728242Z","signature_b64":"eDeJnb94EtbwC6tnRiukDAr8HgULe+VR7snCEeYpsWs1sXxELqf3z3KUJxd8QQoqrKznh3OI0etcZd7de2jIDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f58b5729db63d9f13f073d46c6ee6ffc2b4efe600f30a14db8b3221223165e6","last_reissued_at":"2026-05-18T01:57:43.727536Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:43.727536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5990","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:57:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OqdRivCL8HOWR++MgX6eeDKqoeTS83QIMekm7R/t8ezxH/keCpgo0UnADZqJ9lzH/e5Meyr7LM8D6Dwc3kruDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T15:00:49.804881Z"},"content_sha256":"94de37f658e0dd14df2c9cd152b6c784c549eba651711660c875fa07e7e28b69","schema_version":"1.0","event_id":"sha256:94de37f658e0dd14df2c9cd152b6c784c549eba651711660c875fa07e7e28b69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:R5MLK4U5WY6Z6E7QOPKGY3XG77","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of Semi-Major Axis Drifts in 54 Near-Earth Asteroids: New Measurements of the Yarkovsky Effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"C. R. Nugent, D. Vokrouhlick\\'y, J. L. Margot, S. R. Chesley","submitted_at":"2012-04-26T17:26:07Z","abstract_excerpt":"We have identified and quantified semi-major axis drifts in Near-Earth Asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on a subset of 54 NEAs that exhibit some of the most reliable and strongest drift rates. Our selection criteria include a Yarkovsky sensitivity metric that quantifies the detectability of semi-major axis drift in any given data set, a signal-to-noise metric, and orbital coverage requirements. In 42 cases, the observed drifts (~10^-3 AU/Myr) agree well with numerical estimates of Yarkovsky drifts. This agreement suggest"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5990","kind":"arxiv","version":2},"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":"2026-05-18T01:57:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fx9ePrw3/FHnGTZ2mJspCwHnkvZKwNMb6TRgY7i3dEpnM97z7wjb74MgcTJlX6fxqT8l//HDV97pB4jlS+/JDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T15:00:49.805219Z"},"content_sha256":"9137d79a8f081750d1834af719bd762727683dfd5b4561a4a58ca739c6a717ad","schema_version":"1.0","event_id":"sha256:9137d79a8f081750d1834af719bd762727683dfd5b4561a4a58ca739c6a717ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/bundle.json","state_url":"https://pith.science/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/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":"2026-06-08T15:00:49Z","links":{"resolver":"https://pith.science/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77","bundle":"https://pith.science/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/bundle.json","state":"https://pith.science/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R5MLK4U5WY6Z6E7QOPKGY3XG77/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:R5MLK4U5WY6Z6E7QOPKGY3XG77","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":"7b55e34195c7df3e19feeb5add424fe7812eb1c74f90f76abb404d0cccfcb86f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-04-26T17:26:07Z","title_canon_sha256":"6f188c088e1c3bfb12c2b3ceaf04263eecc73aed4aaab89b8b11fbbd1924e3c2"},"schema_version":"1.0","source":{"id":"1204.5990","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5990","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5990v2","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5990","created_at":"2026-05-18T01:57:43Z"},{"alias_kind":"pith_short_12","alias_value":"R5MLK4U5WY6Z","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R5MLK4U5WY6Z6E7Q","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R5MLK4U5","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:9137d79a8f081750d1834af719bd762727683dfd5b4561a4a58ca739c6a717ad","target":"graph","created_at":"2026-05-18T01:57:43Z","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":"We have identified and quantified semi-major axis drifts in Near-Earth Asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on a subset of 54 NEAs that exhibit some of the most reliable and strongest drift rates. Our selection criteria include a Yarkovsky sensitivity metric that quantifies the detectability of semi-major axis drift in any given data set, a signal-to-noise metric, and orbital coverage requirements. In 42 cases, the observed drifts (~10^-3 AU/Myr) agree well with numerical estimates of Yarkovsky drifts. This agreement suggest","authors_text":"C. R. Nugent, D. Vokrouhlick\\'y, J. L. Margot, S. R. Chesley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-04-26T17:26:07Z","title":"Detection of Semi-Major Axis Drifts in 54 Near-Earth Asteroids: New Measurements of the Yarkovsky Effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5990","kind":"arxiv","version":2},"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":"sha256:94de37f658e0dd14df2c9cd152b6c784c549eba651711660c875fa07e7e28b69","target":"record","created_at":"2026-05-18T01:57:43Z","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":"7b55e34195c7df3e19feeb5add424fe7812eb1c74f90f76abb404d0cccfcb86f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-04-26T17:26:07Z","title_canon_sha256":"6f188c088e1c3bfb12c2b3ceaf04263eecc73aed4aaab89b8b11fbbd1924e3c2"},"schema_version":"1.0","source":{"id":"1204.5990","kind":"arxiv","version":2}},"canonical_sha256":"8f58b5729db63d9f13f073d46c6ee6ffc2b4efe600f30a14db8b3221223165e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f58b5729db63d9f13f073d46c6ee6ffc2b4efe600f30a14db8b3221223165e6","first_computed_at":"2026-05-18T01:57:43.727536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:43.727536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eDeJnb94EtbwC6tnRiukDAr8HgULe+VR7snCEeYpsWs1sXxELqf3z3KUJxd8QQoqrKznh3OI0etcZd7de2jIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:43.728242Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5990","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94de37f658e0dd14df2c9cd152b6c784c549eba651711660c875fa07e7e28b69","sha256:9137d79a8f081750d1834af719bd762727683dfd5b4561a4a58ca739c6a717ad"],"state_sha256":"45284e205af1027f42e54e7889dc5f307b5ff0737e02c5dbcaaa75e07f7e536b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kYndzqjVjeeEKRkE5F3x5sJtDZrVNyxBovayrk8J2+xmJoCBx3GoV6ZjNeizdKt1TqyVidMl3igTOkBhGiFbCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T15:00:49.807072Z","bundle_sha256":"c26ffbf9c2c3ec3c6dc933665a08dee62dbb38f649f94187ca1b7dafe5fdb6ab"}}