{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WNVHFDMICH2EDBQLQEOVPIJULV","short_pith_number":"pith:WNVHFDMI","canonical_record":{"source":{"id":"1110.2651","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-10-12T13:11:57Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"c23536a47edc1db5a387ed70e35b8682ef100d58234c4b31489d19f403c98798","abstract_canon_sha256":"73b335e2dbe122d0f808e9815d96c243869aa0368be17e6b61b0ddd298d23c60"},"schema_version":"1.0"},"canonical_sha256":"b36a728d8811f441860b811d57a1345d574457a6cad59e3616408c1630e67921","source":{"kind":"arxiv","id":"1110.2651","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2651","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2651v1","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2651","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"WNVHFDMICH2E","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WNVHFDMICH2EDBQL","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WNVHFDMI","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WNVHFDMICH2EDBQLQEOVPIJULV","target":"record","payload":{"canonical_record":{"source":{"id":"1110.2651","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-10-12T13:11:57Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"c23536a47edc1db5a387ed70e35b8682ef100d58234c4b31489d19f403c98798","abstract_canon_sha256":"73b335e2dbe122d0f808e9815d96c243869aa0368be17e6b61b0ddd298d23c60"},"schema_version":"1.0"},"canonical_sha256":"b36a728d8811f441860b811d57a1345d574457a6cad59e3616408c1630e67921","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:13.240778Z","signature_b64":"38u5O+jbRnpfcT/FI1HqqEgyaMvoZr0IPP0hi8xSs6n+5N2wPbtcsh6cy/eDYKKjSj7kXqMzMINIhzrEQZvjDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b36a728d8811f441860b811d57a1345d574457a6cad59e3616408c1630e67921","last_reissued_at":"2026-05-18T02:00:13.240168Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:13.240168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.2651","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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G6+LRiGBNwJCCjsYjFxBvNWpafLgEk9o/rAupgPqQ5nJTBEhx27NtWCs/g6WpsS76Jykuurjxdik0smuBid+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:12:10.278348Z"},"content_sha256":"177c3c33f3a5036c5b7207085538575c6941a36c6fca7815c45b7db542ef293b","schema_version":"1.0","event_id":"sha256:177c3c33f3a5036c5b7207085538575c6941a36c6fca7815c45b7db542ef293b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WNVHFDMICH2EDBQLQEOVPIJULV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scintillator detectors with long WLS fibers and multi-pixel photodiodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"I.Polyansky, N.Yershov, O.Mineev, Yu.Kudenko, Yu.Musienko","submitted_at":"2011-10-12T13:11:57Z","abstract_excerpt":"We have studied the possibility of using Geiger mode multi-pixel photodiodes to read out long scintillator bars with a single wavelength-shifting fiber embedded along the bar. This detector configuration can be used in large volume detectors in future long baseline neutrino oscillation experiments. Prototype bars of 0.7 cm thickness and different widths have been produced and tested using two types of multi-pixel photodiodes: MRS APD (CPTA, Moscow) and MPPC (Hamamatsu). A minimum light yield of 7.2 p.e./MeV was obtained for a 4 cm wide bar."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2651","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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fLPEOvwhgTdasDGnp5Ah/LdUc7Sx8ryjA6uRE2AG7dPBYzyVzdDMhNFX3w8uIphdMymPWTqAjhTgn6w0lDpbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:12:10.278701Z"},"content_sha256":"c182895f7ed985f879599608c994be84ea932a6d07594f7678975af4d80fd36a","schema_version":"1.0","event_id":"sha256:c182895f7ed985f879599608c994be84ea932a6d07594f7678975af4d80fd36a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WNVHFDMICH2EDBQLQEOVPIJULV/bundle.json","state_url":"https://pith.science/pith/WNVHFDMICH2EDBQLQEOVPIJULV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WNVHFDMICH2EDBQLQEOVPIJULV/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":"2026-06-03T09:12:10Z","links":{"resolver":"https://pith.science/pith/WNVHFDMICH2EDBQLQEOVPIJULV","bundle":"https://pith.science/pith/WNVHFDMICH2EDBQLQEOVPIJULV/bundle.json","state":"https://pith.science/pith/WNVHFDMICH2EDBQLQEOVPIJULV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WNVHFDMICH2EDBQLQEOVPIJULV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WNVHFDMICH2EDBQLQEOVPIJULV","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":"73b335e2dbe122d0f808e9815d96c243869aa0368be17e6b61b0ddd298d23c60","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-10-12T13:11:57Z","title_canon_sha256":"c23536a47edc1db5a387ed70e35b8682ef100d58234c4b31489d19f403c98798"},"schema_version":"1.0","source":{"id":"1110.2651","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2651","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2651v1","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2651","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"WNVHFDMICH2E","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WNVHFDMICH2EDBQL","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WNVHFDMI","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:c182895f7ed985f879599608c994be84ea932a6d07594f7678975af4d80fd36a","target":"graph","created_at":"2026-05-18T02:00:13Z","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 have studied the possibility of using Geiger mode multi-pixel photodiodes to read out long scintillator bars with a single wavelength-shifting fiber embedded along the bar. This detector configuration can be used in large volume detectors in future long baseline neutrino oscillation experiments. Prototype bars of 0.7 cm thickness and different widths have been produced and tested using two types of multi-pixel photodiodes: MRS APD (CPTA, Moscow) and MPPC (Hamamatsu). A minimum light yield of 7.2 p.e./MeV was obtained for a 4 cm wide bar.","authors_text":"I.Polyansky, N.Yershov, O.Mineev, Yu.Kudenko, Yu.Musienko","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-10-12T13:11:57Z","title":"Scintillator detectors with long WLS fibers and multi-pixel photodiodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2651","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":"sha256:177c3c33f3a5036c5b7207085538575c6941a36c6fca7815c45b7db542ef293b","target":"record","created_at":"2026-05-18T02:00:13Z","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":"73b335e2dbe122d0f808e9815d96c243869aa0368be17e6b61b0ddd298d23c60","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-10-12T13:11:57Z","title_canon_sha256":"c23536a47edc1db5a387ed70e35b8682ef100d58234c4b31489d19f403c98798"},"schema_version":"1.0","source":{"id":"1110.2651","kind":"arxiv","version":1}},"canonical_sha256":"b36a728d8811f441860b811d57a1345d574457a6cad59e3616408c1630e67921","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b36a728d8811f441860b811d57a1345d574457a6cad59e3616408c1630e67921","first_computed_at":"2026-05-18T02:00:13.240168Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:13.240168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"38u5O+jbRnpfcT/FI1HqqEgyaMvoZr0IPP0hi8xSs6n+5N2wPbtcsh6cy/eDYKKjSj7kXqMzMINIhzrEQZvjDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:13.240778Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.2651","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:177c3c33f3a5036c5b7207085538575c6941a36c6fca7815c45b7db542ef293b","sha256:c182895f7ed985f879599608c994be84ea932a6d07594f7678975af4d80fd36a"],"state_sha256":"207dd16765d6d20babe74bc6a55d743c8f99d765817aaf8b5bd21e06b23cf3da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dw8Ig3okiV6kKLY5Xrv77dUppGYJN1X1woXMRERcpQ4h6oI+wwNsLXr0K4DbGvYV5IQFmve/XUCwHTBnM57lBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T09:12:10.280644Z","bundle_sha256":"0e9c3e2eb590e87fce5f81fd285b8bc7710a71b6aa2353202d24267b1ba825cf"}}