{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:L4QSSXLCZV5DOURMIQPQ4LIE6Q","short_pith_number":"pith:L4QSSXLC","canonical_record":{"source":{"id":"2101.12098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-28T16:35:31Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"04f127ee29b21f7aa9c3ce8f707edbff40be6c1bec5cab00eaf76ee5da69f044","abstract_canon_sha256":"a464f09b92d7f198b199525422b9bffb99a4373ae3ca5431d062ab6106d4a3ec"},"schema_version":"1.0"},"canonical_sha256":"5f21295d62cd7a37522c441f0e2d04f415f49b6eaa5940af357f2897f8bc2437","source":{"kind":"arxiv","id":"2101.12098","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12098","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12098v1","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12098","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_12","alias_value":"L4QSSXLCZV5D","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_16","alias_value":"L4QSSXLCZV5DOURM","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_8","alias_value":"L4QSSXLC","created_at":"2026-07-05T02:21:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:L4QSSXLCZV5DOURMIQPQ4LIE6Q","target":"record","payload":{"canonical_record":{"source":{"id":"2101.12098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-28T16:35:31Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"04f127ee29b21f7aa9c3ce8f707edbff40be6c1bec5cab00eaf76ee5da69f044","abstract_canon_sha256":"a464f09b92d7f198b199525422b9bffb99a4373ae3ca5431d062ab6106d4a3ec"},"schema_version":"1.0"},"canonical_sha256":"5f21295d62cd7a37522c441f0e2d04f415f49b6eaa5940af357f2897f8bc2437","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:21:45.090676Z","signature_b64":"nmt5nlN3lDNVtdQPb0Pj+S0NWpN7hPTp8A3YxMf2BVaXUZQkDMEvOaBgb+sjQB5y0vQ38R13waTFI2vxmkbpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f21295d62cd7a37522c441f0e2d04f415f49b6eaa5940af357f2897f8bc2437","last_reissued_at":"2026-07-05T02:21:45.090251Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:21:45.090251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.12098","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":"2026-07-05T02:21:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ghynWnBeQFENOtASTSmYjRl4airhgyaeP3Hut/sfJokjTY7jXyJopcIFi4oDADefPybdAwqbZIv96T8a+pxaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:18:41.803028Z"},"content_sha256":"4e6bd2e7e50da20f8cbf04f29bbba509c2d5360def1f7218e3c43ba19086485e","schema_version":"1.0","event_id":"sha256:4e6bd2e7e50da20f8cbf04f29bbba509c2d5360def1f7218e3c43ba19086485e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:L4QSSXLCZV5DOURMIQPQ4LIE6Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved GRAVITY astrometric accuracy from modeling of optical aberrations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"A. Amorim, A. Drescher, A. Eckart, A. Jim\\'enez-Rosales, A. Kaufer, A. Young, C. Straubmeier, D. Lutz, E. Gendron, E. Sturm, E. Wieprecht, E. Wiezorrek, F. Eisenhauer, F. Gao, F. Vincent, F. Widmann, G. Hei{\\ss}el, G. Perrin, GRAVITY Collaboration, G. Rodr\\'iguez-Coira, G. Zins{\\i}nst{9}, H. Bonnet, I. Waisberg, J.-B. Le Bouquin, J. Dexter, J.P. Berger, J. Shangguan, J. Stadler, J. Woillez, K. Perraut, L. Jochum, L. Jocou, L.J. Tacconi, M. Baub\\\"ock, M. Habibi, M. Horrobin, M. Nowak, N.M. F\\\"orster Schreiber, O. Pfuhl, O. Straub, P. Garcia, P. Kervella, P. L\\'ena, P.T. de Zeeuw, R. Abuter, R. Davies, R. Genzel, S. Gillessen, S. Hippler, S. Lacour, S. Rabien, S. Scheithauer, S. von Fellenberg, S. Yazici, T. Henning, T. Ott, T. Paumard, T. Shimizu, V. Lapeyr\\`ere, W. Brandner, X. Haubois, Y. Cl\\'enet, Y. Dallilar","submitted_at":"2021-01-28T16:35:31Z","abstract_excerpt":"The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the $10 - 100\\,\\mu$as level. Measurements at such high precision crucially depend on the control of systematic effects. Here, we investigate how aberrations introduced by small optical imperfections along the path from the telescope to the detector affect the astrometry. We develop an analytical model that describes the impact of such aberrations on the measurement of complex visibilities. Our formalism accounts for pupil-plane and focal-plane aberrations, as well"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12098","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2101.12098/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:21:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tx7s6LgxIaoXXlft+eZP6DIQ+hh0Qf68rld3EaIuLXynJqGCymLlPN+EvSnlTpIINnUMsHpe/BVGxtFHRQOhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:18:41.803431Z"},"content_sha256":"e85d63ca4ed7d3dfaa94138325c19e2121600cfa549aedb837e4259c9b4c3ead","schema_version":"1.0","event_id":"sha256:e85d63ca4ed7d3dfaa94138325c19e2121600cfa549aedb837e4259c9b4c3ead"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/bundle.json","state_url":"https://pith.science/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/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":"2026-07-07T06:18:41Z","links":{"resolver":"https://pith.science/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q","bundle":"https://pith.science/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/bundle.json","state":"https://pith.science/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4QSSXLCZV5DOURMIQPQ4LIE6Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:L4QSSXLCZV5DOURMIQPQ4LIE6Q","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":"a464f09b92d7f198b199525422b9bffb99a4373ae3ca5431d062ab6106d4a3ec","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-28T16:35:31Z","title_canon_sha256":"04f127ee29b21f7aa9c3ce8f707edbff40be6c1bec5cab00eaf76ee5da69f044"},"schema_version":"1.0","source":{"id":"2101.12098","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12098","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12098v1","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12098","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_12","alias_value":"L4QSSXLCZV5D","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_16","alias_value":"L4QSSXLCZV5DOURM","created_at":"2026-07-05T02:21:45Z"},{"alias_kind":"pith_short_8","alias_value":"L4QSSXLC","created_at":"2026-07-05T02:21:45Z"}],"graph_snapshots":[{"event_id":"sha256:e85d63ca4ed7d3dfaa94138325c19e2121600cfa549aedb837e4259c9b4c3ead","target":"graph","created_at":"2026-07-05T02:21:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.12098/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the $10 - 100\\,\\mu$as level. Measurements at such high precision crucially depend on the control of systematic effects. Here, we investigate how aberrations introduced by small optical imperfections along the path from the telescope to the detector affect the astrometry. We develop an analytical model that describes the impact of such aberrations on the measurement of complex visibilities. Our formalism accounts for pupil-plane and focal-plane aberrations, as well","authors_text":"A. Amorim, A. Drescher, A. Eckart, A. Jim\\'enez-Rosales, A. Kaufer, A. Young, C. Straubmeier, D. Lutz, E. Gendron, E. Sturm, E. Wieprecht, E. Wiezorrek, F. Eisenhauer, F. Gao, F. Vincent, F. Widmann, G. Hei{\\ss}el, G. Perrin, GRAVITY Collaboration, G. Rodr\\'iguez-Coira, G. Zins{\\i}nst{9}, H. Bonnet, I. Waisberg, J.-B. Le Bouquin, J. Dexter, J.P. Berger, J. Shangguan, J. Stadler, J. Woillez, K. Perraut, L. Jochum, L. Jocou, L.J. Tacconi, M. Baub\\\"ock, M. Habibi, M. Horrobin, M. Nowak, N.M. F\\\"orster Schreiber, O. Pfuhl, O. Straub, P. Garcia, P. Kervella, P. L\\'ena, P.T. de Zeeuw, R. Abuter, R. Davies, R. Genzel, S. Gillessen, S. Hippler, S. Lacour, S. Rabien, S. Scheithauer, S. von Fellenberg, S. Yazici, T. Henning, T. Ott, T. Paumard, T. Shimizu, V. Lapeyr\\`ere, W. Brandner, X. Haubois, Y. Cl\\'enet, Y. Dallilar","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-28T16:35:31Z","title":"Improved GRAVITY astrometric accuracy from modeling of optical aberrations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12098","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":"sha256:4e6bd2e7e50da20f8cbf04f29bbba509c2d5360def1f7218e3c43ba19086485e","target":"record","created_at":"2026-07-05T02:21:45Z","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":"a464f09b92d7f198b199525422b9bffb99a4373ae3ca5431d062ab6106d4a3ec","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-28T16:35:31Z","title_canon_sha256":"04f127ee29b21f7aa9c3ce8f707edbff40be6c1bec5cab00eaf76ee5da69f044"},"schema_version":"1.0","source":{"id":"2101.12098","kind":"arxiv","version":1}},"canonical_sha256":"5f21295d62cd7a37522c441f0e2d04f415f49b6eaa5940af357f2897f8bc2437","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f21295d62cd7a37522c441f0e2d04f415f49b6eaa5940af357f2897f8bc2437","first_computed_at":"2026-07-05T02:21:45.090251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:21:45.090251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nmt5nlN3lDNVtdQPb0Pj+S0NWpN7hPTp8A3YxMf2BVaXUZQkDMEvOaBgb+sjQB5y0vQ38R13waTFI2vxmkbpAw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:21:45.090676Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.12098","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4e6bd2e7e50da20f8cbf04f29bbba509c2d5360def1f7218e3c43ba19086485e","sha256:e85d63ca4ed7d3dfaa94138325c19e2121600cfa549aedb837e4259c9b4c3ead"],"state_sha256":"733318474799cbb5e7933b7553bccf6b9272ec850d6aef59d2a01fa192b227db"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ENWl+djy3jmowY8ctC3Rl1ucYBajU3gbkxrjRfbNcZ68x6CBh1xoG3h42BDW/d2tLvDV1gl1c1wix/aTwEqKDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:18:41.805676Z","bundle_sha256":"06fd198e0594c9b36a168c605960acfb5ec51985c35c7fa6bacc06e69bc08f1b"}}