{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:2KNKREWXGFMGT7NU3XB22LH25R","short_pith_number":"pith:2KNKREWX","canonical_record":{"source":{"id":"hep-ex/0109002","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-09-03T10:22:36Z","cross_cats_sorted":[],"title_canon_sha256":"ad7b068f7233474291bb1e2fde4e39ee99e649bce479c1188b82d43488e71159","abstract_canon_sha256":"ddda36f5f87c2f1866f31cbb1ba79f003934dea113945b8c610609bc63f649ce"},"schema_version":"1.0"},"canonical_sha256":"d29aa892d7315869fdb4ddc3ad2cfaec7f612721527d3e06b2afd28c7db90b50","source":{"kind":"arxiv","id":"hep-ex/0109002","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0109002","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0109002v1","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0109002","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"pith_short_12","alias_value":"2KNKREWXGFMG","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"2KNKREWXGFMGT7NU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"2KNKREWX","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:2KNKREWXGFMGT7NU3XB22LH25R","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/0109002","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-09-03T10:22:36Z","cross_cats_sorted":[],"title_canon_sha256":"ad7b068f7233474291bb1e2fde4e39ee99e649bce479c1188b82d43488e71159","abstract_canon_sha256":"ddda36f5f87c2f1866f31cbb1ba79f003934dea113945b8c610609bc63f649ce"},"schema_version":"1.0"},"canonical_sha256":"d29aa892d7315869fdb4ddc3ad2cfaec7f612721527d3e06b2afd28c7db90b50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:21.576088Z","signature_b64":"M8U7OrwQw90YbYAKg35YhOYI9CZSxgwin7r1ISLQ4nb6xl9r5Ln/QzbbdS1h7EIJiP9hNLaSShnXk30Q/7QOCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d29aa892d7315869fdb4ddc3ad2cfaec7f612721527d3e06b2afd28c7db90b50","last_reissued_at":"2026-05-18T02:37:21.575695Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:21.575695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/0109002","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":"2026-05-18T02:37:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OS0g1dqm7zgo6K1ZgEJ/xrW2n+7skizBRgjsfd7v78MdOTMWLZ1iJ+P5fx27gT+mhv4b825eRugsbj8IintVAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:18:16.145472Z"},"content_sha256":"6902a482d94401127bc8b2260a9a0878ffbb7d2e896d0808ba019c2a4f274229","schema_version":"1.0","event_id":"sha256:6902a482d94401127bc8b2260a9a0878ffbb7d2e896d0808ba019c2a4f274229"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:2KNKREWXGFMGT7NU3XB22LH25R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A device to characterize optical fibres","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.Vasiljev, C.Roda, D.Costanzo, E.Mazzoni, F.Bosi, G.Usai, S.Burdin, T.Del Prete, V.Cavasinni, V.Flaminio","submitted_at":"2001-09-03T10:22:36Z","abstract_excerpt":"ATLAS is a general purpose experiment approved for the LHC collider at CERN. An important component of the detector is the central hadronic calorimeter; for its construction more than 600,000 Wave Length Shifting (WLS) fibres (corresponding to a total length of 1,120 Km) have been used.\n  We have built and put into operation a dedicated instrument for the measurement of light yield and attenuation length over groups of 20 fibres at a time.\n  The overall accuracy achieved in the measurement of light yield\n  (attenuation length) is 1.5% (3%).\n We also report the results obtained using this metho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0109002","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":"2026-05-18T02:37:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tCu+DGO4NMyEdCmVOlPMO8xdNmM2Qu+p1Rdqjtaw/vgdZFs0UTFgXPQEFCnhaZNdaugH1rlvL4LPgUWSit8nAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:18:16.146099Z"},"content_sha256":"ffd2a17cc2c5dfb1eb9273243f0474ae48846c7b456888b73c73564c22807b1d","schema_version":"1.0","event_id":"sha256:ffd2a17cc2c5dfb1eb9273243f0474ae48846c7b456888b73c73564c22807b1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2KNKREWXGFMGT7NU3XB22LH25R/bundle.json","state_url":"https://pith.science/pith/2KNKREWXGFMGT7NU3XB22LH25R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2KNKREWXGFMGT7NU3XB22LH25R/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":"2026-05-28T01:18:16Z","links":{"resolver":"https://pith.science/pith/2KNKREWXGFMGT7NU3XB22LH25R","bundle":"https://pith.science/pith/2KNKREWXGFMGT7NU3XB22LH25R/bundle.json","state":"https://pith.science/pith/2KNKREWXGFMGT7NU3XB22LH25R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2KNKREWXGFMGT7NU3XB22LH25R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:2KNKREWXGFMGT7NU3XB22LH25R","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":"ddda36f5f87c2f1866f31cbb1ba79f003934dea113945b8c610609bc63f649ce","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-09-03T10:22:36Z","title_canon_sha256":"ad7b068f7233474291bb1e2fde4e39ee99e649bce479c1188b82d43488e71159"},"schema_version":"1.0","source":{"id":"hep-ex/0109002","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0109002","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0109002v1","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0109002","created_at":"2026-05-18T02:37:21Z"},{"alias_kind":"pith_short_12","alias_value":"2KNKREWXGFMG","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"2KNKREWXGFMGT7NU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"2KNKREWX","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:ffd2a17cc2c5dfb1eb9273243f0474ae48846c7b456888b73c73564c22807b1d","target":"graph","created_at":"2026-05-18T02:37:21Z","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":"ATLAS is a general purpose experiment approved for the LHC collider at CERN. An important component of the detector is the central hadronic calorimeter; for its construction more than 600,000 Wave Length Shifting (WLS) fibres (corresponding to a total length of 1,120 Km) have been used.\n  We have built and put into operation a dedicated instrument for the measurement of light yield and attenuation length over groups of 20 fibres at a time.\n  The overall accuracy achieved in the measurement of light yield\n  (attenuation length) is 1.5% (3%).\n We also report the results obtained using this metho","authors_text":"A.Vasiljev, C.Roda, D.Costanzo, E.Mazzoni, F.Bosi, G.Usai, S.Burdin, T.Del Prete, V.Cavasinni, V.Flaminio","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2001-09-03T10:22:36Z","title":"A device to characterize optical fibres"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0109002","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":"sha256:6902a482d94401127bc8b2260a9a0878ffbb7d2e896d0808ba019c2a4f274229","target":"record","created_at":"2026-05-18T02:37:21Z","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":"ddda36f5f87c2f1866f31cbb1ba79f003934dea113945b8c610609bc63f649ce","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-09-03T10:22:36Z","title_canon_sha256":"ad7b068f7233474291bb1e2fde4e39ee99e649bce479c1188b82d43488e71159"},"schema_version":"1.0","source":{"id":"hep-ex/0109002","kind":"arxiv","version":1}},"canonical_sha256":"d29aa892d7315869fdb4ddc3ad2cfaec7f612721527d3e06b2afd28c7db90b50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d29aa892d7315869fdb4ddc3ad2cfaec7f612721527d3e06b2afd28c7db90b50","first_computed_at":"2026-05-18T02:37:21.575695Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:21.575695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M8U7OrwQw90YbYAKg35YhOYI9CZSxgwin7r1ISLQ4nb6xl9r5Ln/QzbbdS1h7EIJiP9hNLaSShnXk30Q/7QOCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:21.576088Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0109002","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6902a482d94401127bc8b2260a9a0878ffbb7d2e896d0808ba019c2a4f274229","sha256:ffd2a17cc2c5dfb1eb9273243f0474ae48846c7b456888b73c73564c22807b1d"],"state_sha256":"d5210076dc043c9ae85dffbae6ff8593a8a75327ce7a4c7df51a1d70a285ce19"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OYFc9GuOfZbdZbDHrdqSIJn3qSMHYWX1+u/Vn+Qp2F2OKVdRVQn4+9WKI480otOUDW11xRAtES8ZOcctxOE+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:18:16.149079Z","bundle_sha256":"544434bd86a14e3d8ffde90028e7f87a338aa3236ec0b5a815f07dc30524fb52"}}