{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:HZE76RZJ7VUXU5WP7PHDAOCD33","short_pith_number":"pith:HZE76RZJ","canonical_record":{"source":{"id":"astro-ph/0108106","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-07T08:36:42Z","cross_cats_sorted":[],"title_canon_sha256":"58b089da2416c6f52a65b87b0d18dba8ef27c10f673ded407eb655aac74a5afc","abstract_canon_sha256":"9b0e0adeaf15357af5be24d56ec8e56759bfa6cf73f7eb55b672d36905a05509"},"schema_version":"1.0"},"canonical_sha256":"3e49ff4729fd697a76cffbce303843def70501591242e1065c03732893646c7d","source":{"kind":"arxiv","id":"astro-ph/0108106","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0108106","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0108106v1","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0108106","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"HZE76RZJ7VUX","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"HZE76RZJ7VUXU5WP","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"HZE76RZJ","created_at":"2026-07-04T16:23:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:HZE76RZJ7VUXU5WP7PHDAOCD33","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0108106","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-07T08:36:42Z","cross_cats_sorted":[],"title_canon_sha256":"58b089da2416c6f52a65b87b0d18dba8ef27c10f673ded407eb655aac74a5afc","abstract_canon_sha256":"9b0e0adeaf15357af5be24d56ec8e56759bfa6cf73f7eb55b672d36905a05509"},"schema_version":"1.0"},"canonical_sha256":"3e49ff4729fd697a76cffbce303843def70501591242e1065c03732893646c7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:50.062114Z","signature_b64":"MKHxr6jDHAip198gD6tyVP2o7dQCkcsF+mAaJjmWFB1lqOOSMGqqjWlVLo93cDHrtLZQQ7+Kr2BTFOMUxma1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e49ff4729fd697a76cffbce303843def70501591242e1065c03732893646c7d","last_reissued_at":"2026-07-04T16:23:50.061561Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:50.061561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0108106","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":"2026-07-04T16:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VC1YWObrXKWZP2V7PRr2ELGkGqJX9Uk4mukIwj017t2sPLKa97cWh/O0vJGsVvI2fRPcioIZXn3rUgWUUli4Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:25:32.790746Z"},"content_sha256":"32ab8552a4c7bf4e5c51d298d920ca9d3326f3eea179487454589572cc23c14b","schema_version":"1.0","event_id":"sha256:32ab8552a4c7bf4e5c51d298d920ca9d3326f3eea179487454589572cc23c14b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:HZE76RZJ7VUXU5WP7PHDAOCD33","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-Conjugate Adaptive Optics with Laser Guide Stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Bonaccini, F. Eisenhauer, M. Barden, M. Lehnert, R. Genzel, R.I. Davies, S. Hippler, S. Rabien, T. Ott, U. Neumann, W. Hackenberg","submitted_at":"2001-08-07T08:36:42Z","abstract_excerpt":"The Laser Guide Star Facility for the VLT will be commissioned during 2003. This, of course, can only be the first step towards enhancing the scientific output of the VLT through adaptive optics. So in this contribution we propose the development of a laser guide star multi-conjugate adaptive optics system. We consider geometries for the adaptive optics system, and discuss the technology needed to project up to 5 laser beacons. The rationale for such a project is provided by an outline of two primary science drivers."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0108106","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/astro-ph/0108106/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":"2026-07-04T16:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fqVn6xLIFHBjoewybBYAH/EYvxG3LMH3H9eru+DVQMl6XMepk/9eheCgpjMKnHj9ETKu5v1HWXKa4bGspi3VAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:25:32.791248Z"},"content_sha256":"e3d35b1283d6d8b32fbd7dab40adf7b61dff845040fb5a95c2cb2f3e26780209","schema_version":"1.0","event_id":"sha256:e3d35b1283d6d8b32fbd7dab40adf7b61dff845040fb5a95c2cb2f3e26780209"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/bundle.json","state_url":"https://pith.science/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/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":"2026-08-11T00:25:32Z","links":{"resolver":"https://pith.science/pith/HZE76RZJ7VUXU5WP7PHDAOCD33","bundle":"https://pith.science/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/bundle.json","state":"https://pith.science/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HZE76RZJ7VUXU5WP7PHDAOCD33/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:HZE76RZJ7VUXU5WP7PHDAOCD33","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":"9b0e0adeaf15357af5be24d56ec8e56759bfa6cf73f7eb55b672d36905a05509","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-07T08:36:42Z","title_canon_sha256":"58b089da2416c6f52a65b87b0d18dba8ef27c10f673ded407eb655aac74a5afc"},"schema_version":"1.0","source":{"id":"astro-ph/0108106","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0108106","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0108106v1","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0108106","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"HZE76RZJ7VUX","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"HZE76RZJ7VUXU5WP","created_at":"2026-07-04T16:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"HZE76RZJ","created_at":"2026-07-04T16:23:50Z"}],"graph_snapshots":[{"event_id":"sha256:e3d35b1283d6d8b32fbd7dab40adf7b61dff845040fb5a95c2cb2f3e26780209","target":"graph","created_at":"2026-07-04T16:23:50Z","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/astro-ph/0108106/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Laser Guide Star Facility for the VLT will be commissioned during 2003. This, of course, can only be the first step towards enhancing the scientific output of the VLT through adaptive optics. So in this contribution we propose the development of a laser guide star multi-conjugate adaptive optics system. We consider geometries for the adaptive optics system, and discuss the technology needed to project up to 5 laser beacons. The rationale for such a project is provided by an outline of two primary science drivers.","authors_text":"D. Bonaccini, F. Eisenhauer, M. Barden, M. Lehnert, R. Genzel, R.I. Davies, S. Hippler, S. Rabien, T. Ott, U. Neumann, W. Hackenberg","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-08-07T08:36:42Z","title":"Multi-Conjugate Adaptive Optics with Laser Guide Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0108106","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":"sha256:32ab8552a4c7bf4e5c51d298d920ca9d3326f3eea179487454589572cc23c14b","target":"record","created_at":"2026-07-04T16:23:50Z","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":"9b0e0adeaf15357af5be24d56ec8e56759bfa6cf73f7eb55b672d36905a05509","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-07T08:36:42Z","title_canon_sha256":"58b089da2416c6f52a65b87b0d18dba8ef27c10f673ded407eb655aac74a5afc"},"schema_version":"1.0","source":{"id":"astro-ph/0108106","kind":"arxiv","version":1}},"canonical_sha256":"3e49ff4729fd697a76cffbce303843def70501591242e1065c03732893646c7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e49ff4729fd697a76cffbce303843def70501591242e1065c03732893646c7d","first_computed_at":"2026-07-04T16:23:50.061561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:50.061561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MKHxr6jDHAip198gD6tyVP2o7dQCkcsF+mAaJjmWFB1lqOOSMGqqjWlVLo93cDHrtLZQQ7+Kr2BTFOMUxma1Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:50.062114Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0108106","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32ab8552a4c7bf4e5c51d298d920ca9d3326f3eea179487454589572cc23c14b","sha256:e3d35b1283d6d8b32fbd7dab40adf7b61dff845040fb5a95c2cb2f3e26780209"],"state_sha256":"3db62744ece7fb2c7d0fbc53b373eb26b08640b04bc1cd28c32b08538663e1c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UrdsXYvdiLkn9oa7R3tGa+4JuCj25llzSstM6JJ62DYoOrRJydsUusU6vb2Y++PRlrJhGXLPdicOCmG06dHYAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T00:25:32.795292Z","bundle_sha256":"786b1e35419eac017eefa1acd5cab7525741833e37f88042b6c3811883b7d886"}}