{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YNRHYMJFCQKYJAE47XQSZWZRJ2","short_pith_number":"pith:YNRHYMJF","canonical_record":{"source":{"id":"1805.11931","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-30T13:13:00Z","cross_cats_sorted":[],"title_canon_sha256":"466875491065136204ac6ffe2769d8771acebbcd2848333a7556341274d986fe","abstract_canon_sha256":"652d2de1a81894ca26cd76612b78b6ee1779f3a43ee015aee82ce6710815339f"},"schema_version":"1.0"},"canonical_sha256":"c3627c3125141584809cfde12cdb314ebb4d945124053deaafd0c64e3bc02c0c","source":{"kind":"arxiv","id":"1805.11931","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.11931","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"1805.11931v1","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.11931","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"YNRHYMJFCQKY","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YNRHYMJFCQKYJAE4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YNRHYMJF","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YNRHYMJFCQKYJAE47XQSZWZRJ2","target":"record","payload":{"canonical_record":{"source":{"id":"1805.11931","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-30T13:13:00Z","cross_cats_sorted":[],"title_canon_sha256":"466875491065136204ac6ffe2769d8771acebbcd2848333a7556341274d986fe","abstract_canon_sha256":"652d2de1a81894ca26cd76612b78b6ee1779f3a43ee015aee82ce6710815339f"},"schema_version":"1.0"},"canonical_sha256":"c3627c3125141584809cfde12cdb314ebb4d945124053deaafd0c64e3bc02c0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:35.744561Z","signature_b64":"7phGjfWeOlzWHAW4zYicH2mnk/u7hDq8fximqNwbAapKo/6+4oJTA87S3/tizwX3ikq2xnl39t6oDLszgzSlBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3627c3125141584809cfde12cdb314ebb4d945124053deaafd0c64e3bc02c0c","last_reissued_at":"2026-05-18T00:14:35.743755Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:35.743755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.11931","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":"2026-05-18T00:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xzd/A1gKKRl2RwXvuT8Y44RNWR7/M3EuDtye+nJnOkfeH4xKpISfTy6YbykRNRLjxT3nYS+5zAoojWas3xqaCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:12:15.973448Z"},"content_sha256":"915621be41bb39340066636bc4c74a9ee0c5857fd2cc59df60d4e4098182a19a","schema_version":"1.0","event_id":"sha256:915621be41bb39340066636bc4c74a9ee0c5857fd2cc59df60d4e4098182a19a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YNRHYMJFCQKYJAE47XQSZWZRJ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Carlotti, A. Gallie, B. Neichel, C. Correia, C. Petit, C. Verinaud, E. Hugot, F. Clarke, H. Schnetler, I. Bryson, J.-F. Sauvage, J.-L. Gach, J.-M. Conan, J. Paufique, J. Vernet, K. Dohlen, K. El-Hadi, L. Blanco, M. Le Louarn, M. Tecza, N. Schwartz, N. Thatte, P. Hammersley, P. Vola, R. Myers, S. Pascal, T. Fusco, T. Morris","submitted_at":"2018-05-30T13:13:00Z","abstract_excerpt":"HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT's core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-ELT, thanks to a Classical and a Laser Tomographic AO system. In this paper, we present the system choices that have been made for these SCAO and LTAO modules. In particular, we describe the strategy developed for the different Wave-Front Sensors: pyramid for SCAO, the LGSWFS concept, the NGSWFS path, and the truth sensor capabilities. We present first potential implementations. And we asses the first system performanc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.11931","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":"2026-05-18T00:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TrvgYLceOShhXwPi8wdZUHBjLsT1+KlNpdE8GVHdsCZF7bmOYN4wlEexuYoKCpRG4ovNxWjTmHjVjvRwpKTvCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:12:15.973806Z"},"content_sha256":"731485dfb5af3f1901ee0d8aa9f7ece0acff33c62e24288ca6e358acea41ffa6","schema_version":"1.0","event_id":"sha256:731485dfb5af3f1901ee0d8aa9f7ece0acff33c62e24288ca6e358acea41ffa6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/bundle.json","state_url":"https://pith.science/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/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":"2026-06-05T14:12:15Z","links":{"resolver":"https://pith.science/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2","bundle":"https://pith.science/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/bundle.json","state":"https://pith.science/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YNRHYMJFCQKYJAE47XQSZWZRJ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YNRHYMJFCQKYJAE47XQSZWZRJ2","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":"652d2de1a81894ca26cd76612b78b6ee1779f3a43ee015aee82ce6710815339f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-30T13:13:00Z","title_canon_sha256":"466875491065136204ac6ffe2769d8771acebbcd2848333a7556341274d986fe"},"schema_version":"1.0","source":{"id":"1805.11931","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.11931","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"1805.11931v1","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.11931","created_at":"2026-05-18T00:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"YNRHYMJFCQKY","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YNRHYMJFCQKYJAE4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YNRHYMJF","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:731485dfb5af3f1901ee0d8aa9f7ece0acff33c62e24288ca6e358acea41ffa6","target":"graph","created_at":"2026-05-18T00:14:35Z","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":"HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT's core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-ELT, thanks to a Classical and a Laser Tomographic AO system. In this paper, we present the system choices that have been made for these SCAO and LTAO modules. In particular, we describe the strategy developed for the different Wave-Front Sensors: pyramid for SCAO, the LGSWFS concept, the NGSWFS path, and the truth sensor capabilities. We present first potential implementations. And we asses the first system performanc","authors_text":"A. Carlotti, A. Gallie, B. Neichel, C. Correia, C. Petit, C. Verinaud, E. Hugot, F. Clarke, H. Schnetler, I. Bryson, J.-F. Sauvage, J.-L. Gach, J.-M. Conan, J. Paufique, J. Vernet, K. Dohlen, K. El-Hadi, L. Blanco, M. Le Louarn, M. Tecza, N. Schwartz, N. Thatte, P. Hammersley, P. Vola, R. Myers, S. Pascal, T. Fusco, T. Morris","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-30T13:13:00Z","title":"The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.11931","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":"sha256:915621be41bb39340066636bc4c74a9ee0c5857fd2cc59df60d4e4098182a19a","target":"record","created_at":"2026-05-18T00:14:35Z","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":"652d2de1a81894ca26cd76612b78b6ee1779f3a43ee015aee82ce6710815339f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-05-30T13:13:00Z","title_canon_sha256":"466875491065136204ac6ffe2769d8771acebbcd2848333a7556341274d986fe"},"schema_version":"1.0","source":{"id":"1805.11931","kind":"arxiv","version":1}},"canonical_sha256":"c3627c3125141584809cfde12cdb314ebb4d945124053deaafd0c64e3bc02c0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3627c3125141584809cfde12cdb314ebb4d945124053deaafd0c64e3bc02c0c","first_computed_at":"2026-05-18T00:14:35.743755Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:35.743755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7phGjfWeOlzWHAW4zYicH2mnk/u7hDq8fximqNwbAapKo/6+4oJTA87S3/tizwX3ikq2xnl39t6oDLszgzSlBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:35.744561Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.11931","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:915621be41bb39340066636bc4c74a9ee0c5857fd2cc59df60d4e4098182a19a","sha256:731485dfb5af3f1901ee0d8aa9f7ece0acff33c62e24288ca6e358acea41ffa6"],"state_sha256":"cffd59b70e8d993ee8b0dd0b6b08325a77525ee9f7d0fe49127968c57680afa4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IcvPttI/DNAV9fyqpHAOpMFrSMyGrEGyLIaiI6J3xpGCkN8aEZLtTgs5nNx8sLbKzH8AjxboE+92ax4emerqAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T14:12:15.975870Z","bundle_sha256":"f0751acca7d65f4e36b2df92b88654d9a91048c6c014118caa6378eef9af9877"}}