{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DEL7PRH4DSMO2KYK4SUJ3Z6QRB","short_pith_number":"pith:DEL7PRH4","canonical_record":{"source":{"id":"1905.12997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-30T12:32:17Z","cross_cats_sorted":[],"title_canon_sha256":"ff5e7dd4f3b63300a2df297305b99281ac24170f00f8caf3beeba0c63eadd4a2","abstract_canon_sha256":"3fd12f4176e3d5ee6fab59b5ee9325c6038ce49098b76da0994a9c6f2358b2ab"},"schema_version":"1.0"},"canonical_sha256":"1917f7c4fc1c98ed2b0ae4a89de7d08848cc602e8292114d9acffc928db9622f","source":{"kind":"arxiv","id":"1905.12997","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12997","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12997v2","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12997","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"pith_short_12","alias_value":"DEL7PRH4DSMO","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DEL7PRH4DSMO2KYK","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DEL7PRH4","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DEL7PRH4DSMO2KYK4SUJ3Z6QRB","target":"record","payload":{"canonical_record":{"source":{"id":"1905.12997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-30T12:32:17Z","cross_cats_sorted":[],"title_canon_sha256":"ff5e7dd4f3b63300a2df297305b99281ac24170f00f8caf3beeba0c63eadd4a2","abstract_canon_sha256":"3fd12f4176e3d5ee6fab59b5ee9325c6038ce49098b76da0994a9c6f2358b2ab"},"schema_version":"1.0"},"canonical_sha256":"1917f7c4fc1c98ed2b0ae4a89de7d08848cc602e8292114d9acffc928db9622f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:31.646541Z","signature_b64":"5uGgEpCID24DbwyrszRG3Cu0UafksvRnq/lJIpnTUL6CcZIqJ3bO8LTeHr/VzCGWkNWbeo5E/OdtzlMeBdIIDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1917f7c4fc1c98ed2b0ae4a89de7d08848cc602e8292114d9acffc928db9622f","last_reissued_at":"2026-05-17T23:40:31.646004Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:31.646004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.12997","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":"2026-05-17T23:40:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B6MIyDeTYYJaYCF4yw1G3qMO1FIjoewq81HVctpKaEMNblypa32WIYh/AUomhBPWUQjXLT/t5YZJBpYyDC7yDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:32:34.093027Z"},"content_sha256":"3d1f4fcf527cf31a896b509c912b80764ea45b35f394bdaa23dfcb0edb99ad25","schema_version":"1.0","event_id":"sha256:3d1f4fcf527cf31a896b509c912b80764ea45b35f394bdaa23dfcb0edb99ad25"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DEL7PRH4DSMO2KYK4SUJ3Z6QRB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-Earth asteroids spectroscopic survey at Isaac Newton Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. B. \\c{S}onka, C. Fari\\~na, D. Morate, F. L\\'opez-Mart\\'inez, H. Stoev, I. L. Boac\\u{a}, I. Ordonez-Etxeberria, J. de Le\\'on, J. Licandro, M\\'ario De Pr\\'a, M. D\\'iaz Alfaro, M. Popescu, M. Predatu, O. Vaduvescu, R. Errmann, R. M. Gherase, R. P. Ashley, T. Mo\\v{c}nik","submitted_at":"2019-05-30T12:32:17Z","abstract_excerpt":"The population of near-Earth asteroids (NEAs) shows a large variety of objects in terms of physical and dynamical properties. They are subject to planetary encounters and to strong solar wind and radiation effects. Their study is also motivated by practical reasons regarding space exploration and long-term probability of impact with the Earth. We aim to spectrally characterize a significant sample of NEAs with sizes in the range of $\\sim$0.25 - 5.5 km (categorized as large), and search for connections between their spectral types and the orbital parameters. Optical spectra of NEAs were obtaine"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12997","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":"2026-05-17T23:40:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JNP6Pld17thPg3/bMZ5OMbJwBllMQ8jFsOM5GO/kqhzbw7s0+gi2pBm13vucdhdGN1EG28uOITAZgGaAX9j2Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:32:34.093625Z"},"content_sha256":"8a6e3317dbf41746e1e12d250dd3478a4b718d68d147137b47e6c18e69c98ac2","schema_version":"1.0","event_id":"sha256:8a6e3317dbf41746e1e12d250dd3478a4b718d68d147137b47e6c18e69c98ac2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/bundle.json","state_url":"https://pith.science/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/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":"2026-05-30T13:32:34Z","links":{"resolver":"https://pith.science/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB","bundle":"https://pith.science/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/bundle.json","state":"https://pith.science/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DEL7PRH4DSMO2KYK4SUJ3Z6QRB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DEL7PRH4DSMO2KYK4SUJ3Z6QRB","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":"3fd12f4176e3d5ee6fab59b5ee9325c6038ce49098b76da0994a9c6f2358b2ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-30T12:32:17Z","title_canon_sha256":"ff5e7dd4f3b63300a2df297305b99281ac24170f00f8caf3beeba0c63eadd4a2"},"schema_version":"1.0","source":{"id":"1905.12997","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12997","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12997v2","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12997","created_at":"2026-05-17T23:40:31Z"},{"alias_kind":"pith_short_12","alias_value":"DEL7PRH4DSMO","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DEL7PRH4DSMO2KYK","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DEL7PRH4","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:8a6e3317dbf41746e1e12d250dd3478a4b718d68d147137b47e6c18e69c98ac2","target":"graph","created_at":"2026-05-17T23:40:31Z","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 population of near-Earth asteroids (NEAs) shows a large variety of objects in terms of physical and dynamical properties. They are subject to planetary encounters and to strong solar wind and radiation effects. Their study is also motivated by practical reasons regarding space exploration and long-term probability of impact with the Earth. We aim to spectrally characterize a significant sample of NEAs with sizes in the range of $\\sim$0.25 - 5.5 km (categorized as large), and search for connections between their spectral types and the orbital parameters. Optical spectra of NEAs were obtaine","authors_text":"A. B. \\c{S}onka, C. Fari\\~na, D. Morate, F. L\\'opez-Mart\\'inez, H. Stoev, I. L. Boac\\u{a}, I. Ordonez-Etxeberria, J. de Le\\'on, J. Licandro, M\\'ario De Pr\\'a, M. D\\'iaz Alfaro, M. Popescu, M. Predatu, O. Vaduvescu, R. Errmann, R. M. Gherase, R. P. Ashley, T. Mo\\v{c}nik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-30T12:32:17Z","title":"Near-Earth asteroids spectroscopic survey at Isaac Newton Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12997","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":"sha256:3d1f4fcf527cf31a896b509c912b80764ea45b35f394bdaa23dfcb0edb99ad25","target":"record","created_at":"2026-05-17T23:40:31Z","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":"3fd12f4176e3d5ee6fab59b5ee9325c6038ce49098b76da0994a9c6f2358b2ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-05-30T12:32:17Z","title_canon_sha256":"ff5e7dd4f3b63300a2df297305b99281ac24170f00f8caf3beeba0c63eadd4a2"},"schema_version":"1.0","source":{"id":"1905.12997","kind":"arxiv","version":2}},"canonical_sha256":"1917f7c4fc1c98ed2b0ae4a89de7d08848cc602e8292114d9acffc928db9622f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1917f7c4fc1c98ed2b0ae4a89de7d08848cc602e8292114d9acffc928db9622f","first_computed_at":"2026-05-17T23:40:31.646004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:31.646004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5uGgEpCID24DbwyrszRG3Cu0UafksvRnq/lJIpnTUL6CcZIqJ3bO8LTeHr/VzCGWkNWbeo5E/OdtzlMeBdIIDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:31.646541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.12997","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d1f4fcf527cf31a896b509c912b80764ea45b35f394bdaa23dfcb0edb99ad25","sha256:8a6e3317dbf41746e1e12d250dd3478a4b718d68d147137b47e6c18e69c98ac2"],"state_sha256":"a0748511128edad791779971c241ee41569054117b1b9f6f48ae066a64f35027"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cmxEaYY1KlBJobJGAmKAt5uiwLjbrtVCbhriQZmjnNttgLbS0nANh4TkHTNjVhNe+4DKV4qtpgZx9iNJGAUXDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:32:34.096771Z","bundle_sha256":"cde44051708b92c97f39463180115afb6fb49d74f735140bcf13a6503e505fa3"}}