{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:L7GUNFMD6MBVPSUULKJJL3YLFZ","short_pith_number":"pith:L7GUNFMD","canonical_record":{"source":{"id":"2602.20139","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-02-23T18:49:57Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"4c19e48641b40e67645b89139d15b4038039cb0bf674691660c72d5eeb3e2f50","abstract_canon_sha256":"c12acb469c3a2abacbb0051e881da72a9a3ad2f7c354cff3e407c636a3798c1e"},"schema_version":"1.0"},"canonical_sha256":"5fcd469583f30357ca945a9295ef0b2e6168bab5e5595404e9c775c0f318483d","source":{"kind":"arxiv","id":"2602.20139","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20139","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20139v1","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20139","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_12","alias_value":"L7GUNFMD6MBV","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_16","alias_value":"L7GUNFMD6MBVPSUU","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_8","alias_value":"L7GUNFMD","created_at":"2026-06-23T02:13:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:L7GUNFMD6MBVPSUULKJJL3YLFZ","target":"record","payload":{"canonical_record":{"source":{"id":"2602.20139","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-02-23T18:49:57Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"4c19e48641b40e67645b89139d15b4038039cb0bf674691660c72d5eeb3e2f50","abstract_canon_sha256":"c12acb469c3a2abacbb0051e881da72a9a3ad2f7c354cff3e407c636a3798c1e"},"schema_version":"1.0"},"canonical_sha256":"5fcd469583f30357ca945a9295ef0b2e6168bab5e5595404e9c775c0f318483d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:21.377336Z","signature_b64":"bE7EG0OKowwP1vxS/Cp51KpvUCBIcB/a/5Ue3iyorgwcwwz+KurO4nCRdsT/A1LfE7+4BSVqQJImqnmCJwXhAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5fcd469583f30357ca945a9295ef0b2e6168bab5e5595404e9c775c0f318483d","last_reissued_at":"2026-06-23T02:13:21.376948Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:21.376948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.20139","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":"2026-06-23T02:13:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Mub4NkyLO/2kDEnh8cuPJzOCKaRbCzjUlsiKe7uDxja02jZAUGyCqu1WzYrxd9Co+dqYc01RvGKn5DwU2M7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:06:29.829703Z"},"content_sha256":"1a2881b5bc3112b81fe3b8989daf8136f7d3ac12ed840881cff96ca730f5a8a7","schema_version":"1.0","event_id":"sha256:1a2881b5bc3112b81fe3b8989daf8136f7d3ac12ed840881cff96ca730f5a8a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:L7GUNFMD6MBVPSUULKJJL3YLFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of a Cherenkov-Based Time-of-Flight Detector Using Silicon Photomultipliers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Antonio Di Mauro, Antonio Liguori, Eugenio Nappi, Francesco Licciulli, Giacomo Volpe, Giuliana Panzarini, Giuseppe De Robertis, Leonarda Lorusso, Liliana Congedo, Mario Giliberti, Mario Nicola Mazziotta, Nicola Nicassio, Roberta Pillera, Rocco Liotino","submitted_at":"2026-02-23T18:49:57Z","abstract_excerpt":"The aim of this work is to develop high precision Time-of-Flight (TOF) devices based on high refractive index solid Cherenkov radiators read out by silicon photomultipliers (SiPMs). Cherenkov light is prompt and therefore ideal for reaching the intrinsic timing limits of TOF systems. By utilizing a thin, high-refractive-index radiator a nearly instantaneous signal is generated by particles exceeding the Cherenkov threshold. In order to achieve the ultimate time resolution, we carried out a rigorous optimization of the radiator material and geometry, alongside the efficiency of the optical coup"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20139","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/2602.20139/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":"2026-06-23T02:13:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zIRIBgKiGPAYBdr217xSFQinMvPWzvfaaJ2xMuiXrsWzUx+mHktTikflihndZtPLBfoyEwqbWFgh8V6oLjZnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:06:29.831182Z"},"content_sha256":"1f650f37bb897232e372f67bd646d440a1d1374a565dfceb771c71198091aaa7","schema_version":"1.0","event_id":"sha256:1f650f37bb897232e372f67bd646d440a1d1374a565dfceb771c71198091aaa7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/bundle.json","state_url":"https://pith.science/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/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":"2026-08-19T17:06:29Z","links":{"resolver":"https://pith.science/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ","bundle":"https://pith.science/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/bundle.json","state":"https://pith.science/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L7GUNFMD6MBVPSUULKJJL3YLFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:L7GUNFMD6MBVPSUULKJJL3YLFZ","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":"c12acb469c3a2abacbb0051e881da72a9a3ad2f7c354cff3e407c636a3798c1e","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-02-23T18:49:57Z","title_canon_sha256":"4c19e48641b40e67645b89139d15b4038039cb0bf674691660c72d5eeb3e2f50"},"schema_version":"1.0","source":{"id":"2602.20139","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20139","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20139v1","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20139","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_12","alias_value":"L7GUNFMD6MBV","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_16","alias_value":"L7GUNFMD6MBVPSUU","created_at":"2026-06-23T02:13:21Z"},{"alias_kind":"pith_short_8","alias_value":"L7GUNFMD","created_at":"2026-06-23T02:13:21Z"}],"graph_snapshots":[{"event_id":"sha256:1f650f37bb897232e372f67bd646d440a1d1374a565dfceb771c71198091aaa7","target":"graph","created_at":"2026-06-23T02:13:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2602.20139/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The aim of this work is to develop high precision Time-of-Flight (TOF) devices based on high refractive index solid Cherenkov radiators read out by silicon photomultipliers (SiPMs). Cherenkov light is prompt and therefore ideal for reaching the intrinsic timing limits of TOF systems. By utilizing a thin, high-refractive-index radiator a nearly instantaneous signal is generated by particles exceeding the Cherenkov threshold. In order to achieve the ultimate time resolution, we carried out a rigorous optimization of the radiator material and geometry, alongside the efficiency of the optical coup","authors_text":"Antonio Di Mauro, Antonio Liguori, Eugenio Nappi, Francesco Licciulli, Giacomo Volpe, Giuliana Panzarini, Giuseppe De Robertis, Leonarda Lorusso, Liliana Congedo, Mario Giliberti, Mario Nicola Mazziotta, Nicola Nicassio, Roberta Pillera, Rocco Liotino","cross_cats":["astro-ph.IM","hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-02-23T18:49:57Z","title":"Development of a Cherenkov-Based Time-of-Flight Detector Using Silicon Photomultipliers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20139","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":"sha256:1a2881b5bc3112b81fe3b8989daf8136f7d3ac12ed840881cff96ca730f5a8a7","target":"record","created_at":"2026-06-23T02:13:21Z","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":"c12acb469c3a2abacbb0051e881da72a9a3ad2f7c354cff3e407c636a3798c1e","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-02-23T18:49:57Z","title_canon_sha256":"4c19e48641b40e67645b89139d15b4038039cb0bf674691660c72d5eeb3e2f50"},"schema_version":"1.0","source":{"id":"2602.20139","kind":"arxiv","version":1}},"canonical_sha256":"5fcd469583f30357ca945a9295ef0b2e6168bab5e5595404e9c775c0f318483d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5fcd469583f30357ca945a9295ef0b2e6168bab5e5595404e9c775c0f318483d","first_computed_at":"2026-06-23T02:13:21.376948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:21.376948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bE7EG0OKowwP1vxS/Cp51KpvUCBIcB/a/5Ue3iyorgwcwwz+KurO4nCRdsT/A1LfE7+4BSVqQJImqnmCJwXhAg==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:21.377336Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.20139","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a2881b5bc3112b81fe3b8989daf8136f7d3ac12ed840881cff96ca730f5a8a7","sha256:1f650f37bb897232e372f67bd646d440a1d1374a565dfceb771c71198091aaa7"],"state_sha256":"90226cf94cbd91a598e79e13919ba389122b5fbd51bf0f64c488ff8829cbea95"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ef908N2HvjDnIfUfunjQ4J14FQ6ekmwNbz4k3FmlEWkxkbAYbJiKpIR9kk+0kJFaB3Nvzls+VgZgo5U8bZOTBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T17:06:29.836035Z","bundle_sha256":"1849bc89437c96c175ea89336a78c5e1c086b8821636f8c28729bf0c80d1abb9"}}