{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DUBFZ7BSNRGVSBDDGNTTA2FOTJ","short_pith_number":"pith:DUBFZ7BS","canonical_record":{"source":{"id":"2504.15730","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-04-22T09:24:13Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"f05ae21b0e833b495905909a0aee9a440e5e31f9ed88969d6630a08bc789a208","abstract_canon_sha256":"5c335e1b60efb14da541f83bc504987adccfe086bff1ca04b505186980ec016c"},"schema_version":"1.0"},"canonical_sha256":"1d025cfc326c4d59046333673068ae9a6185ce3d6dae3f1355ae15035aef0e8b","source":{"kind":"arxiv","id":"2504.15730","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.15730","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"arxiv_version","alias_value":"2504.15730v1","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.15730","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_12","alias_value":"DUBFZ7BSNRGV","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_16","alias_value":"DUBFZ7BSNRGVSBDD","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_8","alias_value":"DUBFZ7BS","created_at":"2026-07-05T10:52:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DUBFZ7BSNRGVSBDDGNTTA2FOTJ","target":"record","payload":{"canonical_record":{"source":{"id":"2504.15730","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-04-22T09:24:13Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"f05ae21b0e833b495905909a0aee9a440e5e31f9ed88969d6630a08bc789a208","abstract_canon_sha256":"5c335e1b60efb14da541f83bc504987adccfe086bff1ca04b505186980ec016c"},"schema_version":"1.0"},"canonical_sha256":"1d025cfc326c4d59046333673068ae9a6185ce3d6dae3f1355ae15035aef0e8b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:52:29.111679Z","signature_b64":"Mci4onIae7EEetmpR5KdT0ihbIdemhdAcAZ6flb5v0GeOxbHK/+MFngox9f2CP12810CeS+AEF3a1dHHn1K+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d025cfc326c4d59046333673068ae9a6185ce3d6dae3f1355ae15035aef0e8b","last_reissued_at":"2026-07-05T10:52:29.111165Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:52:29.111165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.15730","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":"2026-07-05T10:52:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PSDLUXrfCKEZsuR77h5PyFLqnOwfgUWZ+HwObWRjSz5tbHRewhuiUI63TlpEahAJlhcQI0w/ZmvFkzL9v4L4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T07:25:46.862558Z"},"content_sha256":"8ef279d2f98033ab13000a3969726e1a96b63b9281c302493d90ea766093cfb2","schema_version":"1.0","event_id":"sha256:8ef279d2f98033ab13000a3969726e1a96b63b9281c302493d90ea766093cfb2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DUBFZ7BSNRGVSBDDGNTTA2FOTJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing Radiation Hardness and Granularity in HV-CMOS: The RD50-MPW4 Sensor","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"B. Pilsl, B. Wade, C. Irmler, C. Zhang, E. Vilella, F. R. Palomo, H. Handerkas, H. Steininger, J. Mazorra de Cos, J. Sonneveld, P. Sieberer, R. Casanova, R. Marco-Hernandez, S. Portschy, S. Powell, S. Zhang, T. Bergauer, U. Kraemer","submitted_at":"2025-04-22T09:24:13Z","abstract_excerpt":"The latest HV-CMOS pixel sensor developed by the former CERN-RD50-CMOS group, known as the \\mpw, demonstrates competitive radiation tolerance, spatial granularity, and timing resolution -- key requirements for future high-energy physics experiments such as the HL-LHC and FCC. Fabricated using a \\SI{150}{nm} CMOS process by \\emph{LFoundry}, it introduces several improvements over its predecessor, the \\emph{RD50-MPW3}, including separated power domains for reduced noise, a new backside biasing scheme, and an enhanced guard ring structure, enabling operation at bias voltages up to \\SI{800}{V}.\n  "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.15730","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/2504.15730/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":"2026-07-05T10:52:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AgzB1fhyH97cSVk4huG9ZT9DV8wjniTZv6fFqiUxffQ6KImB7AWd3Y0n7vcgem+pAuze/VGV+Yll2RtH1roZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T07:25:46.863069Z"},"content_sha256":"4f36f5ff5973a5d9a90bad0d53a72f2776c2163d38c391ee68428d77cd9018ec","schema_version":"1.0","event_id":"sha256:4f36f5ff5973a5d9a90bad0d53a72f2776c2163d38c391ee68428d77cd9018ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/bundle.json","state_url":"https://pith.science/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/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":"2026-08-19T07:25:46Z","links":{"resolver":"https://pith.science/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ","bundle":"https://pith.science/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/bundle.json","state":"https://pith.science/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DUBFZ7BSNRGVSBDDGNTTA2FOTJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DUBFZ7BSNRGVSBDDGNTTA2FOTJ","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":"5c335e1b60efb14da541f83bc504987adccfe086bff1ca04b505186980ec016c","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-04-22T09:24:13Z","title_canon_sha256":"f05ae21b0e833b495905909a0aee9a440e5e31f9ed88969d6630a08bc789a208"},"schema_version":"1.0","source":{"id":"2504.15730","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.15730","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"arxiv_version","alias_value":"2504.15730v1","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.15730","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_12","alias_value":"DUBFZ7BSNRGV","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_16","alias_value":"DUBFZ7BSNRGVSBDD","created_at":"2026-07-05T10:52:29Z"},{"alias_kind":"pith_short_8","alias_value":"DUBFZ7BS","created_at":"2026-07-05T10:52:29Z"}],"graph_snapshots":[{"event_id":"sha256:4f36f5ff5973a5d9a90bad0d53a72f2776c2163d38c391ee68428d77cd9018ec","target":"graph","created_at":"2026-07-05T10:52:29Z","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/2504.15730/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The latest HV-CMOS pixel sensor developed by the former CERN-RD50-CMOS group, known as the \\mpw, demonstrates competitive radiation tolerance, spatial granularity, and timing resolution -- key requirements for future high-energy physics experiments such as the HL-LHC and FCC. Fabricated using a \\SI{150}{nm} CMOS process by \\emph{LFoundry}, it introduces several improvements over its predecessor, the \\emph{RD50-MPW3}, including separated power domains for reduced noise, a new backside biasing scheme, and an enhanced guard ring structure, enabling operation at bias voltages up to \\SI{800}{V}.\n  ","authors_text":"B. Pilsl, B. Wade, C. Irmler, C. Zhang, E. Vilella, F. R. Palomo, H. Handerkas, H. Steininger, J. Mazorra de Cos, J. Sonneveld, P. Sieberer, R. Casanova, R. Marco-Hernandez, S. Portschy, S. Powell, S. Zhang, T. Bergauer, U. Kraemer","cross_cats":["hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-04-22T09:24:13Z","title":"Enhancing Radiation Hardness and Granularity in HV-CMOS: The RD50-MPW4 Sensor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.15730","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":"sha256:8ef279d2f98033ab13000a3969726e1a96b63b9281c302493d90ea766093cfb2","target":"record","created_at":"2026-07-05T10:52:29Z","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":"5c335e1b60efb14da541f83bc504987adccfe086bff1ca04b505186980ec016c","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-04-22T09:24:13Z","title_canon_sha256":"f05ae21b0e833b495905909a0aee9a440e5e31f9ed88969d6630a08bc789a208"},"schema_version":"1.0","source":{"id":"2504.15730","kind":"arxiv","version":1}},"canonical_sha256":"1d025cfc326c4d59046333673068ae9a6185ce3d6dae3f1355ae15035aef0e8b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d025cfc326c4d59046333673068ae9a6185ce3d6dae3f1355ae15035aef0e8b","first_computed_at":"2026-07-05T10:52:29.111165Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:52:29.111165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mci4onIae7EEetmpR5KdT0ihbIdemhdAcAZ6flb5v0GeOxbHK/+MFngox9f2CP12810CeS+AEF3a1dHHn1K+CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:52:29.111679Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.15730","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ef279d2f98033ab13000a3969726e1a96b63b9281c302493d90ea766093cfb2","sha256:4f36f5ff5973a5d9a90bad0d53a72f2776c2163d38c391ee68428d77cd9018ec"],"state_sha256":"4dec479492328e64a31b7e27923a00f904654020872dc91f14d676ce7eca4631"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2qi8EaEdhwOx/YyynLVe1CPoib3xcgb9RjYeiOoSxVhVQ3ChjigJW5Lfb54fdOIHo53eJWBIddjiYLOnZudjCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T07:25:46.867461Z","bundle_sha256":"86821dcb29085b0119fe4918846b08b577c565b770161b78337dc249a9bded16"}}