{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:YOVPZBHXUATAD5KLD3CKFPAP6H","short_pith_number":"pith:YOVPZBHX","canonical_record":{"source":{"id":"1410.6244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-23T05:07:42Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"8f0352bb857da547da833300e3244c303bc8f1beee70bb4bfb136828169fab84","abstract_canon_sha256":"29d338c90b33e55417de5c5d140850c82d6720ef56e2885a7ffc610d748ca7ca"},"schema_version":"1.0"},"canonical_sha256":"c3aafc84f7a02601f54b1ec4a2bc0ff1f6893fc16a5f55990038a8f7eb1a3eee","source":{"kind":"arxiv","id":"1410.6244","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6244","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6244v1","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6244","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"pith_short_12","alias_value":"YOVPZBHXUATA","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YOVPZBHXUATAD5KL","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YOVPZBHX","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:YOVPZBHXUATAD5KLD3CKFPAP6H","target":"record","payload":{"canonical_record":{"source":{"id":"1410.6244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-23T05:07:42Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"8f0352bb857da547da833300e3244c303bc8f1beee70bb4bfb136828169fab84","abstract_canon_sha256":"29d338c90b33e55417de5c5d140850c82d6720ef56e2885a7ffc610d748ca7ca"},"schema_version":"1.0"},"canonical_sha256":"c3aafc84f7a02601f54b1ec4a2bc0ff1f6893fc16a5f55990038a8f7eb1a3eee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:40.698097Z","signature_b64":"Ed7mHVBWp68pI2wGwaOoVKfL9jmr3F1d3iHsVAvWnzwpZHkc/7yMx7Cm/U3r3G7Oi0R+bRL5XnF2AEAuTMBeDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3aafc84f7a02601f54b1ec4a2bc0ff1f6893fc16a5f55990038a8f7eb1a3eee","last_reissued_at":"2026-05-18T01:41:40.697542Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:40.697542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.6244","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":"2026-05-18T01:41:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CZi7fkFNsLrW6T/tpjZ+XxfHopPNeLi6GmNRiApf+TZWtCfhxKOsbmmUnSyK1F/hZ25UetyjTqyIErzq2IscBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:20:22.804123Z"},"content_sha256":"475d76c5a870a4c17a700ba42543957fadf943a0d1a5c7fd537f90cd6e02bda7","schema_version":"1.0","event_id":"sha256:475d76c5a870a4c17a700ba42543957fadf943a0d1a5c7fd537f90cd6e02bda7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:YOVPZBHXUATAD5KLD3CKFPAP6H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"A. Skemer, B. Mennesson, C. Delacroix, C. Gomez, D. Defr\\`ere, D. Mawet, E. Downey, J. Kent Wallace, J. Kuhn, J. Leisenring, J. Surdej, L. Pueyo, M. Karlsson, M. Kenworthy, M. Montoya, M. Skrutskie, O. Absil, O. Durney, P. Forsberg, P. Hinz, S. Habraken, V. Bailey, W.F. Hoffmann","submitted_at":"2014-10-23T05:07:42Z","abstract_excerpt":"We present the first observations obtained with the L'-band AGPM vortex coronagraph recently installed on LBTI/LMIRCam. The AGPM (Annular Groove Phase Mask) is a vector vortex coronagraph made from diamond subwavelength gratings. It is designed to improve the sensitivity and dynamic range of high-resolution imaging at very small inner working angles, down to 0.09 arcseconds in the case of LBTI/LMIRCam in the L' band. During the first hours on sky, we observed the young A5V star HR\\,8799 with the goal to demonstrate the AGPM performance and assess its relevance for the ongoing LBTI planet surve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6244","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":"2026-05-18T01:41:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R3pput6oPctAdiP8Q2LDsU1ew+8EF7PDNiWh+BpgY7jcQrwOBhncQGpCY3CiCGi9frZtuyLyBWUx9Ee+KxMXCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:20:22.804488Z"},"content_sha256":"a78c790eedcc482fd6a9c7778e8f132f4f326e9e307e50b94f8f1dc387c67506","schema_version":"1.0","event_id":"sha256:a78c790eedcc482fd6a9c7778e8f132f4f326e9e307e50b94f8f1dc387c67506"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/bundle.json","state_url":"https://pith.science/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/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":"2026-06-01T21:20:22Z","links":{"resolver":"https://pith.science/pith/YOVPZBHXUATAD5KLD3CKFPAP6H","bundle":"https://pith.science/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/bundle.json","state":"https://pith.science/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YOVPZBHXUATAD5KLD3CKFPAP6H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:YOVPZBHXUATAD5KLD3CKFPAP6H","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":"29d338c90b33e55417de5c5d140850c82d6720ef56e2885a7ffc610d748ca7ca","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-23T05:07:42Z","title_canon_sha256":"8f0352bb857da547da833300e3244c303bc8f1beee70bb4bfb136828169fab84"},"schema_version":"1.0","source":{"id":"1410.6244","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6244","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6244v1","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6244","created_at":"2026-05-18T01:41:40Z"},{"alias_kind":"pith_short_12","alias_value":"YOVPZBHXUATA","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YOVPZBHXUATAD5KL","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YOVPZBHX","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:a78c790eedcc482fd6a9c7778e8f132f4f326e9e307e50b94f8f1dc387c67506","target":"graph","created_at":"2026-05-18T01:41:40Z","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 present the first observations obtained with the L'-band AGPM vortex coronagraph recently installed on LBTI/LMIRCam. The AGPM (Annular Groove Phase Mask) is a vector vortex coronagraph made from diamond subwavelength gratings. It is designed to improve the sensitivity and dynamic range of high-resolution imaging at very small inner working angles, down to 0.09 arcseconds in the case of LBTI/LMIRCam in the L' band. During the first hours on sky, we observed the young A5V star HR\\,8799 with the goal to demonstrate the AGPM performance and assess its relevance for the ongoing LBTI planet surve","authors_text":"A. Skemer, B. Mennesson, C. Delacroix, C. Gomez, D. Defr\\`ere, D. Mawet, E. Downey, J. Kent Wallace, J. Kuhn, J. Leisenring, J. Surdej, L. Pueyo, M. Karlsson, M. Kenworthy, M. Montoya, M. Skrutskie, O. Absil, O. Durney, P. Forsberg, P. Hinz, S. Habraken, V. Bailey, W.F. Hoffmann","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-23T05:07:42Z","title":"L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6244","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":"sha256:475d76c5a870a4c17a700ba42543957fadf943a0d1a5c7fd537f90cd6e02bda7","target":"record","created_at":"2026-05-18T01:41:40Z","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":"29d338c90b33e55417de5c5d140850c82d6720ef56e2885a7ffc610d748ca7ca","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-23T05:07:42Z","title_canon_sha256":"8f0352bb857da547da833300e3244c303bc8f1beee70bb4bfb136828169fab84"},"schema_version":"1.0","source":{"id":"1410.6244","kind":"arxiv","version":1}},"canonical_sha256":"c3aafc84f7a02601f54b1ec4a2bc0ff1f6893fc16a5f55990038a8f7eb1a3eee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3aafc84f7a02601f54b1ec4a2bc0ff1f6893fc16a5f55990038a8f7eb1a3eee","first_computed_at":"2026-05-18T01:41:40.697542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:40.697542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ed7mHVBWp68pI2wGwaOoVKfL9jmr3F1d3iHsVAvWnzwpZHkc/7yMx7Cm/U3r3G7Oi0R+bRL5XnF2AEAuTMBeDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:40.698097Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.6244","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:475d76c5a870a4c17a700ba42543957fadf943a0d1a5c7fd537f90cd6e02bda7","sha256:a78c790eedcc482fd6a9c7778e8f132f4f326e9e307e50b94f8f1dc387c67506"],"state_sha256":"0998b805fcb0e7f8a39aa1513bd9927091101169b83aa08aeb14684a0a08f2f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NAtO6I8PYBXidrauy07AdRB4R0K7GwjOHR9XeXCtI7SgCQMrP4uYbF6ZkvHQl+LmgcngmIBRUsaqTJDUqV+zCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:20:22.806692Z","bundle_sha256":"143cfbf72dad313af2b35f1230430f63f5c7d36cf92573d80743fc06db424575"}}