{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:YFTEFWMQYKBUW72CPTNWE6KXCG","short_pith_number":"pith:YFTEFWMQ","canonical_record":{"source":{"id":"1006.4032","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-06-21T11:05:52Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"e5c9c6c656f4f274cf4b63c6612aff0c96a70d8c8fb2e8ffc040ade3e36d4f5f","abstract_canon_sha256":"df14916d9a0f638922b1c513e938a2840ef0ddcedf5c82e898e928949d6774cc"},"schema_version":"1.0"},"canonical_sha256":"c16642d990c2834b7f427cdb62795711ba6e80c704234c733223b8d53be1e0c1","source":{"kind":"arxiv","id":"1006.4032","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.4032","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"1006.4032v1","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.4032","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"YFTEFWMQYKBU","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YFTEFWMQYKBUW72C","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YFTEFWMQ","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:YFTEFWMQYKBUW72CPTNWE6KXCG","target":"record","payload":{"canonical_record":{"source":{"id":"1006.4032","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-06-21T11:05:52Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"e5c9c6c656f4f274cf4b63c6612aff0c96a70d8c8fb2e8ffc040ade3e36d4f5f","abstract_canon_sha256":"df14916d9a0f638922b1c513e938a2840ef0ddcedf5c82e898e928949d6774cc"},"schema_version":"1.0"},"canonical_sha256":"c16642d990c2834b7f427cdb62795711ba6e80c704234c733223b8d53be1e0c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:34.013773Z","signature_b64":"A/CulmSY1FAgDGhItTzCevgto7ETwqKQA/Ir+M4mv+OhMfdaT12E562X48RRg7rl2wz8uxKtGZFTDBdvOzpUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c16642d990c2834b7f427cdb62795711ba6e80c704234c733223b8d53be1e0c1","last_reissued_at":"2026-05-18T04:12:34.013136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:34.013136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.4032","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":"2026-05-18T04:12:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T+uCDNhzmR0vbxJBb3VnW0AduHF+u3/YYotBg+8LwtVuVSwfjdyNQrKkCtJv9JLrj+e9LAQKfikK7vUHZ4IeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:02:02.308048Z"},"content_sha256":"4a0a171c2cfffe3889a59e1c3bb7281838f9c575192835f61f813a4b9fcffa9b","schema_version":"1.0","event_id":"sha256:4a0a171c2cfffe3889a59e1c3bb7281838f9c575192835f61f813a4b9fcffa9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:YFTEFWMQYKBUW72CPTNWE6KXCG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Silicon photomultiplier timing performance study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"Gama Ahmed, Johann Marton, Ken Suzuki, Paul B\\\"uhler","submitted_at":"2010-06-21T11:05:52Z","abstract_excerpt":"Many characteristics of Silicon Photomultipliers can be tuned with temperature and operation voltage. We present preliminary results of a study of the effect of these two operation parameters on the time resolution of large active area Multi-Pixel Photon Counters (MPPCs) manufactured by Hamamatsu. Measurements at -10 C, 0 C, and 10 C at different bias voltages were performed. The time resolution is best at low temperature and high over-voltage. Most significant improvements can be achieved in cases with low number of fired pixels (<10 pixels). Between the worst and best case among the consider"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.4032","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":"2026-05-18T04:12:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u5aymHZeUTq98mZpvmM4yQJjRuuW2EljWKjfQ6FoVAlzNl5fMIKgA3jlsFNZ8BPlGJ3gyD3vz1+pE9JjZuqEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:02:02.308767Z"},"content_sha256":"3ecd5ccffb8ac7801d5c5ab975c4bdf6a6e65473785d31486261fc85ee24c943","schema_version":"1.0","event_id":"sha256:3ecd5ccffb8ac7801d5c5ab975c4bdf6a6e65473785d31486261fc85ee24c943"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/bundle.json","state_url":"https://pith.science/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/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":"2026-05-25T08:02:02Z","links":{"resolver":"https://pith.science/pith/YFTEFWMQYKBUW72CPTNWE6KXCG","bundle":"https://pith.science/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/bundle.json","state":"https://pith.science/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YFTEFWMQYKBUW72CPTNWE6KXCG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:YFTEFWMQYKBUW72CPTNWE6KXCG","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":"df14916d9a0f638922b1c513e938a2840ef0ddcedf5c82e898e928949d6774cc","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-06-21T11:05:52Z","title_canon_sha256":"e5c9c6c656f4f274cf4b63c6612aff0c96a70d8c8fb2e8ffc040ade3e36d4f5f"},"schema_version":"1.0","source":{"id":"1006.4032","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.4032","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"1006.4032v1","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.4032","created_at":"2026-05-18T04:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"YFTEFWMQYKBU","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YFTEFWMQYKBUW72C","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YFTEFWMQ","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:3ecd5ccffb8ac7801d5c5ab975c4bdf6a6e65473785d31486261fc85ee24c943","target":"graph","created_at":"2026-05-18T04:12:34Z","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":"Many characteristics of Silicon Photomultipliers can be tuned with temperature and operation voltage. We present preliminary results of a study of the effect of these two operation parameters on the time resolution of large active area Multi-Pixel Photon Counters (MPPCs) manufactured by Hamamatsu. Measurements at -10 C, 0 C, and 10 C at different bias voltages were performed. The time resolution is best at low temperature and high over-voltage. Most significant improvements can be achieved in cases with low number of fired pixels (<10 pixels). Between the worst and best case among the consider","authors_text":"Gama Ahmed, Johann Marton, Ken Suzuki, Paul B\\\"uhler","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-06-21T11:05:52Z","title":"Silicon photomultiplier timing performance study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.4032","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":"sha256:4a0a171c2cfffe3889a59e1c3bb7281838f9c575192835f61f813a4b9fcffa9b","target":"record","created_at":"2026-05-18T04:12:34Z","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":"df14916d9a0f638922b1c513e938a2840ef0ddcedf5c82e898e928949d6774cc","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-06-21T11:05:52Z","title_canon_sha256":"e5c9c6c656f4f274cf4b63c6612aff0c96a70d8c8fb2e8ffc040ade3e36d4f5f"},"schema_version":"1.0","source":{"id":"1006.4032","kind":"arxiv","version":1}},"canonical_sha256":"c16642d990c2834b7f427cdb62795711ba6e80c704234c733223b8d53be1e0c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c16642d990c2834b7f427cdb62795711ba6e80c704234c733223b8d53be1e0c1","first_computed_at":"2026-05-18T04:12:34.013136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:34.013136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A/CulmSY1FAgDGhItTzCevgto7ETwqKQA/Ir+M4mv+OhMfdaT12E562X48RRg7rl2wz8uxKtGZFTDBdvOzpUCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:34.013773Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.4032","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a0a171c2cfffe3889a59e1c3bb7281838f9c575192835f61f813a4b9fcffa9b","sha256:3ecd5ccffb8ac7801d5c5ab975c4bdf6a6e65473785d31486261fc85ee24c943"],"state_sha256":"c4a38f1b8b4081b1e739de2ad9c2356c12b7c8d4c1a407cfd706a5246a67a5d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ZKDjC5lpULT6Gy/cVcIw1y+5H45MWbL7Y2xbhv8pDk7DMtu2MWY75tqVO7VOGqfl1E2Yb01QmW+UBKDCZGoDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T08:02:02.317010Z","bundle_sha256":"7fad36952cb6dcb489c9a5cf0145af1d87e5eaa98b575e4b5efd69fc4cc55a4a"}}