{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:PSFHX3HWLXQAAYJ6NBP64EPBBW","short_pith_number":"pith:PSFHX3HW","canonical_record":{"source":{"id":"astro-ph/0101326","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-01-18T13:26:43Z","cross_cats_sorted":[],"title_canon_sha256":"ccee4d03937b0a72b09aeb69feaabeb4e59da59272ae9ad8f297948e1acfab7a","abstract_canon_sha256":"52aea04a41d685f0ae355898145c0e34e0d42df219580bccc6ce7ae6320d261d"},"schema_version":"1.0"},"canonical_sha256":"7c8a7becf65de000613e685fee11e10da488bc3ea1514838eb30a47062cf4723","source":{"kind":"arxiv","id":"astro-ph/0101326","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0101326","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0101326v1","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0101326","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"PSFHX3HWLXQA","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_16","alias_value":"PSFHX3HWLXQAAYJ6","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_8","alias_value":"PSFHX3HW","created_at":"2026-07-04T16:22:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:PSFHX3HWLXQAAYJ6NBP64EPBBW","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0101326","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-01-18T13:26:43Z","cross_cats_sorted":[],"title_canon_sha256":"ccee4d03937b0a72b09aeb69feaabeb4e59da59272ae9ad8f297948e1acfab7a","abstract_canon_sha256":"52aea04a41d685f0ae355898145c0e34e0d42df219580bccc6ce7ae6320d261d"},"schema_version":"1.0"},"canonical_sha256":"7c8a7becf65de000613e685fee11e10da488bc3ea1514838eb30a47062cf4723","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:22:35.722830Z","signature_b64":"3AMxp6rzaVANWuhPE8De2WmfN6IMjA4e304fz0KWSot9dSTqE74W6+acNpPhWh77V2xsBHkX7/o1XSJd9K+ADw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c8a7becf65de000613e685fee11e10da488bc3ea1514838eb30a47062cf4723","last_reissued_at":"2026-07-04T16:22:35.722441Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:22:35.722441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0101326","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":"2026-07-04T16:22:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xJJTrrhjzAWu8T6Ib8xHKft76S/XbVrbbz6+IuiUZ1wj5oeok/P6pGnM/EN4/ZwsX/FfIACsfEHFltTdxoVhAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:44:06.027953Z"},"content_sha256":"797881113c5b33e45eee23c8befa41355404481ca9859d84e2cd405afd8d64cd","schema_version":"1.0","event_id":"sha256:797881113c5b33e45eee23c8befa41355404481ca9859d84e2cd405afd8d64cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:PSFHX3HWLXQAAYJ6NBP64EPBBW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The VLT-VIRMOS Mask Manufacturing Unit","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Garilli, C. Vo\\\"et, D. Bottini, D. Maccagni, D. Mancini, E. Cascone, E. Mattaini, E. Sant'Ambrogio, F. Perrotta, G. Conti, G. Mancini, G. Vettolani, L. Chiappetti, M. Saisse, O. Caputi, O. Le F\\`evre, P. Schipani","submitted_at":"2001-01-18T13:26:43Z","abstract_excerpt":"The VIRMOS Consortium has the task to design and manufacture two spectrographs for ESO VLT, VIMOS (Visible Multi-Object Spectrograph) and NIRMOS (Near Infrared Multi-Object Spectrograph). This paper describes how the Mask Manufacturing Unit (MMU), which cuts the slit masks to be used with both instruments, meets the scientific requirements and manages the storage and the insertion of the masks into the instrument. The components and the software of the two main parts of the MMU, the Mask Manufacturing Machine and the Mask Handling System, are illustrated together with the mask material and wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0101326","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/0101326/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":"2026-07-04T16:22:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h0vObkM3nEOWb7Xm7rpLmXKAStOzVkV6jtIxpDi6/+zfDjYaLxcUmensasZMXBbCYRpe7S3dcMyTdw3h6U8EAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:44:06.028453Z"},"content_sha256":"8dc111ced73a83d1adde42bf0d112aef7193b7492004f7e019db39818af597c8","schema_version":"1.0","event_id":"sha256:8dc111ced73a83d1adde42bf0d112aef7193b7492004f7e019db39818af597c8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/bundle.json","state_url":"https://pith.science/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/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":"2026-08-06T08:44:06Z","links":{"resolver":"https://pith.science/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW","bundle":"https://pith.science/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/bundle.json","state":"https://pith.science/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSFHX3HWLXQAAYJ6NBP64EPBBW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:PSFHX3HWLXQAAYJ6NBP64EPBBW","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":"52aea04a41d685f0ae355898145c0e34e0d42df219580bccc6ce7ae6320d261d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-01-18T13:26:43Z","title_canon_sha256":"ccee4d03937b0a72b09aeb69feaabeb4e59da59272ae9ad8f297948e1acfab7a"},"schema_version":"1.0","source":{"id":"astro-ph/0101326","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0101326","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0101326v1","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0101326","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"PSFHX3HWLXQA","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_16","alias_value":"PSFHX3HWLXQAAYJ6","created_at":"2026-07-04T16:22:35Z"},{"alias_kind":"pith_short_8","alias_value":"PSFHX3HW","created_at":"2026-07-04T16:22:35Z"}],"graph_snapshots":[{"event_id":"sha256:8dc111ced73a83d1adde42bf0d112aef7193b7492004f7e019db39818af597c8","target":"graph","created_at":"2026-07-04T16:22:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0101326/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The VIRMOS Consortium has the task to design and manufacture two spectrographs for ESO VLT, VIMOS (Visible Multi-Object Spectrograph) and NIRMOS (Near Infrared Multi-Object Spectrograph). This paper describes how the Mask Manufacturing Unit (MMU), which cuts the slit masks to be used with both instruments, meets the scientific requirements and manages the storage and the insertion of the masks into the instrument. The components and the software of the two main parts of the MMU, the Mask Manufacturing Machine and the Mask Handling System, are illustrated together with the mask material and wit","authors_text":"B. Garilli, C. Vo\\\"et, D. Bottini, D. Maccagni, D. Mancini, E. Cascone, E. Mattaini, E. Sant'Ambrogio, F. Perrotta, G. Conti, G. Mancini, G. Vettolani, L. Chiappetti, M. Saisse, O. Caputi, O. Le F\\`evre, P. Schipani","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-01-18T13:26:43Z","title":"The VLT-VIRMOS Mask Manufacturing Unit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0101326","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":"sha256:797881113c5b33e45eee23c8befa41355404481ca9859d84e2cd405afd8d64cd","target":"record","created_at":"2026-07-04T16:22:35Z","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":"52aea04a41d685f0ae355898145c0e34e0d42df219580bccc6ce7ae6320d261d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-01-18T13:26:43Z","title_canon_sha256":"ccee4d03937b0a72b09aeb69feaabeb4e59da59272ae9ad8f297948e1acfab7a"},"schema_version":"1.0","source":{"id":"astro-ph/0101326","kind":"arxiv","version":1}},"canonical_sha256":"7c8a7becf65de000613e685fee11e10da488bc3ea1514838eb30a47062cf4723","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c8a7becf65de000613e685fee11e10da488bc3ea1514838eb30a47062cf4723","first_computed_at":"2026-07-04T16:22:35.722441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:22:35.722441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3AMxp6rzaVANWuhPE8De2WmfN6IMjA4e304fz0KWSot9dSTqE74W6+acNpPhWh77V2xsBHkX7/o1XSJd9K+ADw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:22:35.722830Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0101326","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:797881113c5b33e45eee23c8befa41355404481ca9859d84e2cd405afd8d64cd","sha256:8dc111ced73a83d1adde42bf0d112aef7193b7492004f7e019db39818af597c8"],"state_sha256":"f071d685f5ca9ab911612884dfd784a834bba35d29b2725604061aa6b4e8ce26"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B4dHxxPrlgCwJ26mDmcq0GxyvBq7BD9sNhCB2kV5+R6UXixg4TX+cLJl5MRzyLmY93aSgvgeuKkop1ckrQnoAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T08:44:06.033376Z","bundle_sha256":"40c5c21251ec759e2572f29128b9a59879a09bab2c53d9dd9945ab74d6d0d3c3"}}