{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WCXZ34AZBQRG6AN2TLGYN7B3V4","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":"d10eecf5e11878a57714aea5aeac004f09c78c3a69f9d81c09485389150fbc4d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-11-26T09:35:26Z","title_canon_sha256":"7712187fbff1841b854764cfd402c0d1f7cf1f45c2032c8cf6618663a01d2d2b"},"schema_version":"1.0","source":{"id":"1811.10246","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.10246","created_at":"2026-07-05T00:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"1811.10246v1","created_at":"2026-07-05T00:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.10246","created_at":"2026-07-05T00:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"WCXZ34AZBQRG","created_at":"2026-07-05T00:01:35Z"},{"alias_kind":"pith_short_16","alias_value":"WCXZ34AZBQRG6AN2","created_at":"2026-07-05T00:01:35Z"},{"alias_kind":"pith_short_8","alias_value":"WCXZ34AZ","created_at":"2026-07-05T00:01:35Z"}],"graph_snapshots":[{"event_id":"sha256:fd3eabcf989495ce8ae6fa3a5b44787d8efcba118621e9891031c86c46e8ea4e","target":"graph","created_at":"2026-07-05T00:01:35Z","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/1811.10246/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Time-of-flight measurement is an important advancement in PET scanners to improve image reconstruction with a lower delivered radiation dose. This article describes the monolithic ASIC for the TT-PET project, a novel idea for a high-precision PET scanner for small animals. The chip uses a SiGe Bi-CMOS process for timing measurements, integrating a fully-depleted pixel matrix with a low-power BJT-based front-end per channel, integrated on the same 100 $\\mu{} m$ thick die. The target timing resolution is 30 ps RMS for electrons from the conversion of 511 keV photons. A novel synchronization sche","authors_text":"Alessandro Caltabiano, Daiki Hayakawa, Emanuele Ripiccini, Giuseppe Iacobucci, Holger Rueker, Lorenzo Paolozzi, Marzio Nessi, Mehmet Kaynak, Pierpaolo Valerio, Roberto Cardarelli, Salvatore Bruno","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-11-26T09:35:26Z","title":"A monolithic ASIC demonstrator for the Thin Time-of-Flight PET scanner"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.10246","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":"sha256:4da2d089c74de6ef5cfdd7e31fb480acedff36ce620e44f8f654ad33e88f15ac","target":"record","created_at":"2026-07-05T00:01:35Z","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":"d10eecf5e11878a57714aea5aeac004f09c78c3a69f9d81c09485389150fbc4d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-11-26T09:35:26Z","title_canon_sha256":"7712187fbff1841b854764cfd402c0d1f7cf1f45c2032c8cf6618663a01d2d2b"},"schema_version":"1.0","source":{"id":"1811.10246","kind":"arxiv","version":1}},"canonical_sha256":"b0af9df0190c226f01ba9acd86fc3baf372454964b314bb1baf54e5c1d1d5de1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0af9df0190c226f01ba9acd86fc3baf372454964b314bb1baf54e5c1d1d5de1","first_computed_at":"2026-07-05T00:01:35.421233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:01:35.421233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9MJotg/KQoTXiAl6W5DxW0yNhHDZ9YcS2WGHOzoaPa0lXy6SeUDKGItjs0Nbl7cbwyrToyH4iBogRFCh5VDxBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:01:35.421776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.10246","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4da2d089c74de6ef5cfdd7e31fb480acedff36ce620e44f8f654ad33e88f15ac","sha256:fd3eabcf989495ce8ae6fa3a5b44787d8efcba118621e9891031c86c46e8ea4e"],"state_sha256":"76cea6e15dc4b4660f9eca7d460107e8f2c0575dd3017055b23335765356108a"}