{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QIZ4MUIJ45M23SFV47BYSD5NWF","short_pith_number":"pith:QIZ4MUIJ","canonical_record":{"source":{"id":"1812.09415","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-21T23:45:12Z","cross_cats_sorted":[],"title_canon_sha256":"a82aea84482911dcdaabe07eeea13d42d650119b48447f486d9784cce8e18df1","abstract_canon_sha256":"c86bc038e7cf31bebd496ed2e9d1dc7f84deb8cf472661af856ec9a9e4824cdb"},"schema_version":"1.0"},"canonical_sha256":"8233c65109e759adc8b5e7c3890fadb17aa1625e76bf5b45a9401fa763e6d053","source":{"kind":"arxiv","id":"1812.09415","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.09415","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"1812.09415v1","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.09415","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"QIZ4MUIJ45M2","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QIZ4MUIJ45M23SFV","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QIZ4MUIJ","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QIZ4MUIJ45M23SFV47BYSD5NWF","target":"record","payload":{"canonical_record":{"source":{"id":"1812.09415","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-21T23:45:12Z","cross_cats_sorted":[],"title_canon_sha256":"a82aea84482911dcdaabe07eeea13d42d650119b48447f486d9784cce8e18df1","abstract_canon_sha256":"c86bc038e7cf31bebd496ed2e9d1dc7f84deb8cf472661af856ec9a9e4824cdb"},"schema_version":"1.0"},"canonical_sha256":"8233c65109e759adc8b5e7c3890fadb17aa1625e76bf5b45a9401fa763e6d053","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:28.044217Z","signature_b64":"WFccD+3+Jw+cMP19YdjVBiMSgJxnMcfixDlhAmJre+z2fqzN9aGDtX8yuvh90Jg1KCY6pzzUFdYQTKTeYdOGBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8233c65109e759adc8b5e7c3890fadb17aa1625e76bf5b45a9401fa763e6d053","last_reissued_at":"2026-05-17T23:57:28.043661Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:28.043661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.09415","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":"2026-05-17T23:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0a0f2WLnpS/bjIx+W4+xwMFfRS3wOaEdKPUkfzlrNVazpd7rTJsanhk2zNAre9pBAvdGFfEzYQUVfz3KRGpADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:34:16.378472Z"},"content_sha256":"e87cb0df41764884534b2bd3338c0d06079b12b589a4a826feb9a2c6aecb3aed","schema_version":"1.0","event_id":"sha256:e87cb0df41764884534b2bd3338c0d06079b12b589a4a826feb9a2c6aecb3aed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QIZ4MUIJ45M23SFV47BYSD5NWF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ROSETTA/OSIRIS observations of the 67P nucleus during the April 2016 flyby: high-resolution spectrophotometry","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Barucci, A. Lucchetti, B. Gaskell, B.J.R. Davidsson, C. Feller, C. G\\\"uttler, C. Tubiana, D. Bodewits, D. Koschny, F. La Forgia, F. Marzari, F. Preusker, F. Scholten, G. Cremonese, G. Naletto, H. Sierks, H. U. Keller, I. Bertini, J.D.P Deshapriya, J. J. L\\'opez-Moreno, J.-L. Bertaux, L. M. Lara, M. De Cecco, M. Fulle, M. Lazzarin, M. Massironi, M. Pajola, P.H. Hasselmann, P. J. Guti\\'errez, P. L. Lamy, R. Rodrigo, S. Debei, S. Ferrari, S. Fornasier, S. Mottola, V. Da Deppo, W.-H. Ip, X. Shi","submitted_at":"2018-12-21T23:45:12Z","abstract_excerpt":"In April 2016, the Rosetta spacecraft performed a low-altitude low-phase-angle flyby over the Imhotep-Khepry transition of 67P/Churyumov-Gerasimenko's nucleus. The OSIRIS/Narrow-Angle-Camera (NAC) acquired 112 images with mainly 3 broadband filters in the visible at a resolution of up to 0.53 m/px and for phase angles between 0.095{\\deg} and 62{\\deg}. Using those images, we have investigated the morphological and spectrophotometrical properties of this area. We assembled the images into coregistered color cubes. Using a 3D shape model, we produced the illumination conditions and georeference f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.09415","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":"2026-05-17T23:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GBiIAv/yqKeKnAdJyblfsXz1ucijUQsNQooE0CoGUU3HcrN2xieam74riHNdXCfhTTyhu3ad9cH63oD2Bq8iCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:34:16.379160Z"},"content_sha256":"35788358555d7069f7a572ba9636052bd0a83dbee92067af28177e7286b1b4fe","schema_version":"1.0","event_id":"sha256:35788358555d7069f7a572ba9636052bd0a83dbee92067af28177e7286b1b4fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/bundle.json","state_url":"https://pith.science/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/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":"2026-05-27T01:34:16Z","links":{"resolver":"https://pith.science/pith/QIZ4MUIJ45M23SFV47BYSD5NWF","bundle":"https://pith.science/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/bundle.json","state":"https://pith.science/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QIZ4MUIJ45M23SFV47BYSD5NWF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QIZ4MUIJ45M23SFV47BYSD5NWF","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":"c86bc038e7cf31bebd496ed2e9d1dc7f84deb8cf472661af856ec9a9e4824cdb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-21T23:45:12Z","title_canon_sha256":"a82aea84482911dcdaabe07eeea13d42d650119b48447f486d9784cce8e18df1"},"schema_version":"1.0","source":{"id":"1812.09415","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.09415","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"1812.09415v1","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.09415","created_at":"2026-05-17T23:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"QIZ4MUIJ45M2","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QIZ4MUIJ45M23SFV","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QIZ4MUIJ","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:35788358555d7069f7a572ba9636052bd0a83dbee92067af28177e7286b1b4fe","target":"graph","created_at":"2026-05-17T23:57:28Z","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":"In April 2016, the Rosetta spacecraft performed a low-altitude low-phase-angle flyby over the Imhotep-Khepry transition of 67P/Churyumov-Gerasimenko's nucleus. The OSIRIS/Narrow-Angle-Camera (NAC) acquired 112 images with mainly 3 broadband filters in the visible at a resolution of up to 0.53 m/px and for phase angles between 0.095{\\deg} and 62{\\deg}. Using those images, we have investigated the morphological and spectrophotometrical properties of this area. We assembled the images into coregistered color cubes. Using a 3D shape model, we produced the illumination conditions and georeference f","authors_text":"A. Barucci, A. Lucchetti, B. Gaskell, B.J.R. Davidsson, C. Feller, C. G\\\"uttler, C. Tubiana, D. Bodewits, D. Koschny, F. La Forgia, F. Marzari, F. Preusker, F. Scholten, G. Cremonese, G. Naletto, H. Sierks, H. U. Keller, I. Bertini, J.D.P Deshapriya, J. J. L\\'opez-Moreno, J.-L. Bertaux, L. M. Lara, M. De Cecco, M. Fulle, M. Lazzarin, M. Massironi, M. Pajola, P.H. Hasselmann, P. J. Guti\\'errez, P. L. Lamy, R. Rodrigo, S. Debei, S. Ferrari, S. Fornasier, S. Mottola, V. Da Deppo, W.-H. Ip, X. Shi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-21T23:45:12Z","title":"ROSETTA/OSIRIS observations of the 67P nucleus during the April 2016 flyby: high-resolution spectrophotometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.09415","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:e87cb0df41764884534b2bd3338c0d06079b12b589a4a826feb9a2c6aecb3aed","target":"record","created_at":"2026-05-17T23:57:28Z","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":"c86bc038e7cf31bebd496ed2e9d1dc7f84deb8cf472661af856ec9a9e4824cdb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-21T23:45:12Z","title_canon_sha256":"a82aea84482911dcdaabe07eeea13d42d650119b48447f486d9784cce8e18df1"},"schema_version":"1.0","source":{"id":"1812.09415","kind":"arxiv","version":1}},"canonical_sha256":"8233c65109e759adc8b5e7c3890fadb17aa1625e76bf5b45a9401fa763e6d053","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8233c65109e759adc8b5e7c3890fadb17aa1625e76bf5b45a9401fa763e6d053","first_computed_at":"2026-05-17T23:57:28.043661Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:28.043661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WFccD+3+Jw+cMP19YdjVBiMSgJxnMcfixDlhAmJre+z2fqzN9aGDtX8yuvh90Jg1KCY6pzzUFdYQTKTeYdOGBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:28.044217Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.09415","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e87cb0df41764884534b2bd3338c0d06079b12b589a4a826feb9a2c6aecb3aed","sha256:35788358555d7069f7a572ba9636052bd0a83dbee92067af28177e7286b1b4fe"],"state_sha256":"d9234097c34f9be0b2b96f1213da379a66a0fddb26bc9d7180a130e344dc24b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0VMhqqKRSROjr13tSl4439gdt5/rF4Quz+prwRG7Z2HP6BxiyCYRMAz4sztF4oR+Ow9Puca3+JqEQd/7GSnyCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:34:16.382808Z","bundle_sha256":"b49575154f3e7400adea32ac53f117b631fef5bc38f02818f72fcd3fb81a3931"}}