{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:7XVUL4YD62ASOQZO6VYFA2A6QD","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":"be68825bcfae9d95b0685e81cf17be9daf1012f96d90d2cbb4add2df07da3de0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-06T19:55:58Z","title_canon_sha256":"6952a2a38be0fe740514796f83a67db8ce7afedc7dfe64298a17dabd7bdf2f5e"},"schema_version":"1.0","source":{"id":"1610.02021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.02021","created_at":"2026-05-18T00:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"1610.02021v1","created_at":"2026-05-18T00:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02021","created_at":"2026-05-18T00:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"7XVUL4YD62AS","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7XVUL4YD62ASOQZO","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7XVUL4YD","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:39016fb80a08f74eb69bd05d69612e52317da1f38a6f660c3aa2cacac0fde7cf","target":"graph","created_at":"2026-05-18T00:54:28Z","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":"The upcoming Mu3e experiment will search for the charged lepton flavour violating decay of a muon at rest into three electrons. The maximal energy of the electrons is 53 MeV, hence a low material budget is a key performance requirement for the tracking detector. In this paper we summarize our approach to meet the requirement of about 0.1 % of a radiation length per pixel detector layer. This includes the choice of thinned active monolithic pixel sensors in HV-CMOS technology, ultra-thin flexible printed circuits, and helium gas cooling.","authors_text":"A. Herkert, A. Sch\\\"oning, D. Wiedner, F. Meier Aeschbacher, L. Henkelmann, L.O.S. Noehte, N. Berger, S. Dittmeier, Y.W. Ng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-06T19:55:58Z","title":"Ultra-low material pixel layers for the Mu3e experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02021","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":"sha256:57cf7e3f6df00ae54f12543530b06f8eb2b9357941db2d99260cc26be8da80fb","target":"record","created_at":"2026-05-18T00:54:28Z","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":"be68825bcfae9d95b0685e81cf17be9daf1012f96d90d2cbb4add2df07da3de0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-06T19:55:58Z","title_canon_sha256":"6952a2a38be0fe740514796f83a67db8ce7afedc7dfe64298a17dabd7bdf2f5e"},"schema_version":"1.0","source":{"id":"1610.02021","kind":"arxiv","version":1}},"canonical_sha256":"fdeb45f303f68127432ef57050681e80f37b8c109785ab792da8e6d1bcddf4ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdeb45f303f68127432ef57050681e80f37b8c109785ab792da8e6d1bcddf4ba","first_computed_at":"2026-05-18T00:54:28.864251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:28.864251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IhK1ebMGG6cuArSOSAHu3OThHtyVtCip5NOwhjkdY/iSyDP+5RNP/uOEOA9G7O0oSXCsb3uQia8jXev4y7RkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:28.864778Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.02021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57cf7e3f6df00ae54f12543530b06f8eb2b9357941db2d99260cc26be8da80fb","sha256:39016fb80a08f74eb69bd05d69612e52317da1f38a6f660c3aa2cacac0fde7cf"],"state_sha256":"c9229b22d6508f82e6869abfdc40240e74352895d54589ad025bbed8efb3fd22"}