{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:55PNGK2G5NLN7SZ7TC5SH3LFFX","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":"24191786c71818bc6b3907a3c363b40d69e1be092e55067157aeb592c1b6f554","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-02-14T02:04:26Z","title_canon_sha256":"4d6e6a853e8bf82ef41f0ba27361f02eaa62f5f4803cd3955d8ca260f076aa84"},"schema_version":"1.0","source":{"id":"1502.04159","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04159","created_at":"2026-05-18T01:58:26Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04159v2","created_at":"2026-05-18T01:58:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04159","created_at":"2026-05-18T01:58:26Z"},{"alias_kind":"pith_short_12","alias_value":"55PNGK2G5NLN","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"55PNGK2G5NLN7SZ7","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"55PNGK2G","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:904323c8510647180a08c3cf394ccc11905881430874c0cb5fcc0f7cf7cfcf27","target":"graph","created_at":"2026-05-18T01:58:26Z","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 report on the design and construction of a LED-based fiber calibration system for large liquid argon time projection detectors. This system was developed to calibrate the optical systems of the MicroBooNE experiment. As well as detailing the materials and installation procedure, we provide technical drawings and specifications so that the system may be easily replicated in future LArTPC detectors.","authors_text":"B.J.P. Jones, J. Conrad, M. Toups, T. Strauss, Z. Moss","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-02-14T02:04:26Z","title":"The Photomultiplier Tube Calibration System of the MicroBooNE Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04159","kind":"arxiv","version":2},"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":"sha256:2f49bece813c3bf0174279a1bfd859123e9230eb8e343687bf688404a0fabad2","target":"record","created_at":"2026-05-18T01:58:26Z","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":"24191786c71818bc6b3907a3c363b40d69e1be092e55067157aeb592c1b6f554","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-02-14T02:04:26Z","title_canon_sha256":"4d6e6a853e8bf82ef41f0ba27361f02eaa62f5f4803cd3955d8ca260f076aa84"},"schema_version":"1.0","source":{"id":"1502.04159","kind":"arxiv","version":2}},"canonical_sha256":"ef5ed32b46eb56dfcb3f98bb23ed652dcae6e94642610d6a7bdda5b7e51ba5f5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef5ed32b46eb56dfcb3f98bb23ed652dcae6e94642610d6a7bdda5b7e51ba5f5","first_computed_at":"2026-05-18T01:58:26.862853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:26.862853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iRSySMqy7a3zIfcLQ5nENghy8t6vrlU6NCcgI3pn82asyNS2JVoI5TmzX0JSzsNkdHE1ijHsX+JLpu+lIqXPBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:26.863324Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.04159","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f49bece813c3bf0174279a1bfd859123e9230eb8e343687bf688404a0fabad2","sha256:904323c8510647180a08c3cf394ccc11905881430874c0cb5fcc0f7cf7cfcf27"],"state_sha256":"06ceae9a312d660b7d7142f01e8079fed9196542bd491385c150d4d6baf157b7"}