{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:O5MD7WHFA2NGA7XEPPSFL3SAQG","short_pith_number":"pith:O5MD7WHF","canonical_record":{"source":{"id":"1602.06000","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-02-18T23:16:33Z","cross_cats_sorted":[],"title_canon_sha256":"f25bb7d4c105538b5160ae220ee1ee4c7715e3898b4c55c17ea11812062a60a1","abstract_canon_sha256":"80f7e073c336c6174f073cc516a8aa07391d5858cffd3c8adc36d0050b02946b"},"schema_version":"1.0"},"canonical_sha256":"77583fd8e5069a607ee47be455ee40819c0bfc652ce8e5c8b81f5aa57d5e2ccd","source":{"kind":"arxiv","id":"1602.06000","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06000","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06000v1","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06000","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"O5MD7WHFA2NG","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"O5MD7WHFA2NGA7XE","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"O5MD7WHF","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:O5MD7WHFA2NGA7XEPPSFL3SAQG","target":"record","payload":{"canonical_record":{"source":{"id":"1602.06000","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-02-18T23:16:33Z","cross_cats_sorted":[],"title_canon_sha256":"f25bb7d4c105538b5160ae220ee1ee4c7715e3898b4c55c17ea11812062a60a1","abstract_canon_sha256":"80f7e073c336c6174f073cc516a8aa07391d5858cffd3c8adc36d0050b02946b"},"schema_version":"1.0"},"canonical_sha256":"77583fd8e5069a607ee47be455ee40819c0bfc652ce8e5c8b81f5aa57d5e2ccd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:41.315223Z","signature_b64":"r/u1wPZB+AyZyd5SNKY4dAlEHRXXOnCeX9ymIeqDw4Fvc7cNRNd4LENFAnuYEP4hUjGdmDCrIYgBx6Xa9VBxCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77583fd8e5069a607ee47be455ee40819c0bfc652ce8e5c8b81f5aa57d5e2ccd","last_reissued_at":"2026-05-18T01:17:41.314485Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:41.314485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.06000","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":"2026-05-18T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aqfIkPoyKDplmQ8gHA4720u2R2TklyLheEaby0iliWBSUXsgo8+PUWzmKo/l2YTGLM/3bq6DuZQYGYZVcWbYCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:23:15.239456Z"},"content_sha256":"2e7702a2ba72dec599f88bbc51691cda7a6052653a5a981d540e639d04ff8547","schema_version":"1.0","event_id":"sha256:2e7702a2ba72dec599f88bbc51691cda7a6052653a5a981d540e639d04ff8547"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:O5MD7WHFA2NGA7XEPPSFL3SAQG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Results from the Rapid-Response Spectrophotometric Characterization of Near-Earth Objects using UKIRT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"B. Pichardo, D. Borth, D. E. Trilling, E. Petersen, M. Mommert, M. Reyes-Ruiz, N. Butler, N. Moskovitz, R. Jedicke, T. Axelrod","submitted_at":"2016-02-18T23:16:33Z","abstract_excerpt":"Using the Wide Field Camera for the United Kingdom Infrared Telescope, we measure the near-infrared colors of near-Earth objects (NEOs) in order to put constraints on their taxonomic classifications. The rapid-response character of our observations allows us to observe NEOs when they are close to the Earth and bright. Here we present near-infrared color measurements of 86 NEOs, most of which were observed within a few days of their discovery, allowing us to characterize NEOs with diameters of only a few meters. Using machine-learning methods, we compare our measurements to existing asteroid sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06000","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":"2026-05-18T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yAWDjwVH5VKZYihGovMkX1zconJeIOaHJNaHWiZ93UHWKkles7MGa/SVbd2c5X7Z1fHEbMIZhulUO35BUCCGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:23:15.240411Z"},"content_sha256":"2060d8e7c32cb3f4a396523807fbd9b7d2e35265355471f26ccdef2e81036ae7","schema_version":"1.0","event_id":"sha256:2060d8e7c32cb3f4a396523807fbd9b7d2e35265355471f26ccdef2e81036ae7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/bundle.json","state_url":"https://pith.science/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/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":"2026-05-31T20:23:15Z","links":{"resolver":"https://pith.science/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG","bundle":"https://pith.science/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/bundle.json","state":"https://pith.science/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O5MD7WHFA2NGA7XEPPSFL3SAQG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:O5MD7WHFA2NGA7XEPPSFL3SAQG","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":"80f7e073c336c6174f073cc516a8aa07391d5858cffd3c8adc36d0050b02946b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-02-18T23:16:33Z","title_canon_sha256":"f25bb7d4c105538b5160ae220ee1ee4c7715e3898b4c55c17ea11812062a60a1"},"schema_version":"1.0","source":{"id":"1602.06000","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06000","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06000v1","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06000","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"O5MD7WHFA2NG","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"O5MD7WHFA2NGA7XE","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"O5MD7WHF","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:2060d8e7c32cb3f4a396523807fbd9b7d2e35265355471f26ccdef2e81036ae7","target":"graph","created_at":"2026-05-18T01:17:41Z","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":"Using the Wide Field Camera for the United Kingdom Infrared Telescope, we measure the near-infrared colors of near-Earth objects (NEOs) in order to put constraints on their taxonomic classifications. The rapid-response character of our observations allows us to observe NEOs when they are close to the Earth and bright. Here we present near-infrared color measurements of 86 NEOs, most of which were observed within a few days of their discovery, allowing us to characterize NEOs with diameters of only a few meters. Using machine-learning methods, we compare our measurements to existing asteroid sp","authors_text":"B. Pichardo, D. Borth, D. E. Trilling, E. Petersen, M. Mommert, M. Reyes-Ruiz, N. Butler, N. Moskovitz, R. Jedicke, T. Axelrod","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-02-18T23:16:33Z","title":"First Results from the Rapid-Response Spectrophotometric Characterization of Near-Earth Objects using UKIRT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06000","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":"sha256:2e7702a2ba72dec599f88bbc51691cda7a6052653a5a981d540e639d04ff8547","target":"record","created_at":"2026-05-18T01:17:41Z","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":"80f7e073c336c6174f073cc516a8aa07391d5858cffd3c8adc36d0050b02946b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-02-18T23:16:33Z","title_canon_sha256":"f25bb7d4c105538b5160ae220ee1ee4c7715e3898b4c55c17ea11812062a60a1"},"schema_version":"1.0","source":{"id":"1602.06000","kind":"arxiv","version":1}},"canonical_sha256":"77583fd8e5069a607ee47be455ee40819c0bfc652ce8e5c8b81f5aa57d5e2ccd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77583fd8e5069a607ee47be455ee40819c0bfc652ce8e5c8b81f5aa57d5e2ccd","first_computed_at":"2026-05-18T01:17:41.314485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:41.314485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r/u1wPZB+AyZyd5SNKY4dAlEHRXXOnCeX9ymIeqDw4Fvc7cNRNd4LENFAnuYEP4hUjGdmDCrIYgBx6Xa9VBxCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:41.315223Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06000","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e7702a2ba72dec599f88bbc51691cda7a6052653a5a981d540e639d04ff8547","sha256:2060d8e7c32cb3f4a396523807fbd9b7d2e35265355471f26ccdef2e81036ae7"],"state_sha256":"90c1346cf687b674aa969a094e650f48665fc136158276d02e172f26d67228a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"75+eb+chWiWGuGgUU5FyE01omijmPU+zxwTG3kClvuHI1iTDMX6bQV7jnHt62W82M3t7XovaK0mlQD+lFc20Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T20:23:15.245563Z","bundle_sha256":"fe4244401cd9357282304c5b0b57945373f9fa2c51f2e9df8c7d825027abee86"}}