{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VNOLD56544AMXX4UE2OISRMDTD","short_pith_number":"pith:VNOLD565","canonical_record":{"source":{"id":"1512.01944","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-12-07T08:57:12Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"65d52d8295f1436a77e9efb78106be14f09f353c35963f42ba47370438a13664","abstract_canon_sha256":"e55caa6cbd1ee6defb0a96080c6932769e8175eedb8905c27ae00509806f3b06"},"schema_version":"1.0"},"canonical_sha256":"ab5cb1f7dde700cbdf94269c89458398f95c2b308d739396254bf947ce264d23","source":{"kind":"arxiv","id":"1512.01944","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.01944","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"arxiv_version","alias_value":"1512.01944v1","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.01944","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"pith_short_12","alias_value":"VNOLD56544AM","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VNOLD56544AMXX4U","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VNOLD565","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VNOLD56544AMXX4UE2OISRMDTD","target":"record","payload":{"canonical_record":{"source":{"id":"1512.01944","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-12-07T08:57:12Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"65d52d8295f1436a77e9efb78106be14f09f353c35963f42ba47370438a13664","abstract_canon_sha256":"e55caa6cbd1ee6defb0a96080c6932769e8175eedb8905c27ae00509806f3b06"},"schema_version":"1.0"},"canonical_sha256":"ab5cb1f7dde700cbdf94269c89458398f95c2b308d739396254bf947ce264d23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:34.495143Z","signature_b64":"Zk0bFFVAbY9zSiaOKV7c8r/lKqIT4Dg8Zj5ZtTzT70Sv53lAgjuLkmrZyCopcR35CvPts1mxrwWlGuiVaFS5BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab5cb1f7dde700cbdf94269c89458398f95c2b308d739396254bf947ce264d23","last_reissued_at":"2026-05-18T00:58:34.494535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:34.494535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.01944","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":"2026-05-18T00:58:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IqlZp6fy8b0rg9c5i1Wf2XAPFfiOLLDxhi/2hJfSETZYhwFk7cWk3gX0Zr5pTvuesjCssjPazchzlv6lunHZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:43:41.220062Z"},"content_sha256":"3e82b2fddd07406e9e8e91427b8d4acaaf3d79a162f8e8a81988742440dd67fb","schema_version":"1.0","event_id":"sha256:3e82b2fddd07406e9e8e91427b8d4acaaf3d79a162f8e8a81988742440dd67fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VNOLD56544AMXX4UE2OISRMDTD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Construction and Test of New Precision Drift-Tube Chambers for Upgrades of the ATLAS Muon Spectrometer in 2016/17","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"F. M\\\"uller, H. Kroha, K. Schmidt-Sommerfeld, O. Kortner, S. Nowak","submitted_at":"2015-12-07T08:57:12Z","abstract_excerpt":"Small-diameter Muon Drift Tube (sMDT) chambers have been developed for the ATLAS muon detector upgrade. They possess an improved rate capability and a more compact design with respect to the existing chambers, which allows to equip detector regions uninstrument at present. The chamber assembly methods have been optimized for mass production, while the sense wire positioning accuracy is improved to below ten microns. The chambers will be ready for installation in the winter shutdown 2016/17 of the Large Hadron Collider. The design and construction of the new sMDT chambers for ATLAS will be disc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.01944","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":"2026-05-18T00:58:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/CMHj8EFpqy8we1n+i9RYI8s2B17VNIj4hh6bfTktAlnajjH8JbVhp1aFp30Emlt7R/9WogPM8mlCf0piBu9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:43:41.220764Z"},"content_sha256":"47448788fae4ff15a946384b7f1f3223e0782e86282a96e001338fcada4426a5","schema_version":"1.0","event_id":"sha256:47448788fae4ff15a946384b7f1f3223e0782e86282a96e001338fcada4426a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VNOLD56544AMXX4UE2OISRMDTD/bundle.json","state_url":"https://pith.science/pith/VNOLD56544AMXX4UE2OISRMDTD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VNOLD56544AMXX4UE2OISRMDTD/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":"2026-05-30T17:43:41Z","links":{"resolver":"https://pith.science/pith/VNOLD56544AMXX4UE2OISRMDTD","bundle":"https://pith.science/pith/VNOLD56544AMXX4UE2OISRMDTD/bundle.json","state":"https://pith.science/pith/VNOLD56544AMXX4UE2OISRMDTD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VNOLD56544AMXX4UE2OISRMDTD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VNOLD56544AMXX4UE2OISRMDTD","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":"e55caa6cbd1ee6defb0a96080c6932769e8175eedb8905c27ae00509806f3b06","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-12-07T08:57:12Z","title_canon_sha256":"65d52d8295f1436a77e9efb78106be14f09f353c35963f42ba47370438a13664"},"schema_version":"1.0","source":{"id":"1512.01944","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.01944","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"arxiv_version","alias_value":"1512.01944v1","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.01944","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"pith_short_12","alias_value":"VNOLD56544AM","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VNOLD56544AMXX4U","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VNOLD565","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:47448788fae4ff15a946384b7f1f3223e0782e86282a96e001338fcada4426a5","target":"graph","created_at":"2026-05-18T00:58:34Z","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":"Small-diameter Muon Drift Tube (sMDT) chambers have been developed for the ATLAS muon detector upgrade. They possess an improved rate capability and a more compact design with respect to the existing chambers, which allows to equip detector regions uninstrument at present. The chamber assembly methods have been optimized for mass production, while the sense wire positioning accuracy is improved to below ten microns. The chambers will be ready for installation in the winter shutdown 2016/17 of the Large Hadron Collider. The design and construction of the new sMDT chambers for ATLAS will be disc","authors_text":"F. M\\\"uller, H. Kroha, K. Schmidt-Sommerfeld, O. Kortner, S. Nowak","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-12-07T08:57:12Z","title":"Construction and Test of New Precision Drift-Tube Chambers for Upgrades of the ATLAS Muon Spectrometer in 2016/17"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.01944","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":"sha256:3e82b2fddd07406e9e8e91427b8d4acaaf3d79a162f8e8a81988742440dd67fb","target":"record","created_at":"2026-05-18T00:58:34Z","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":"e55caa6cbd1ee6defb0a96080c6932769e8175eedb8905c27ae00509806f3b06","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-12-07T08:57:12Z","title_canon_sha256":"65d52d8295f1436a77e9efb78106be14f09f353c35963f42ba47370438a13664"},"schema_version":"1.0","source":{"id":"1512.01944","kind":"arxiv","version":1}},"canonical_sha256":"ab5cb1f7dde700cbdf94269c89458398f95c2b308d739396254bf947ce264d23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab5cb1f7dde700cbdf94269c89458398f95c2b308d739396254bf947ce264d23","first_computed_at":"2026-05-18T00:58:34.494535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:34.494535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zk0bFFVAbY9zSiaOKV7c8r/lKqIT4Dg8Zj5ZtTzT70Sv53lAgjuLkmrZyCopcR35CvPts1mxrwWlGuiVaFS5BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:34.495143Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.01944","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e82b2fddd07406e9e8e91427b8d4acaaf3d79a162f8e8a81988742440dd67fb","sha256:47448788fae4ff15a946384b7f1f3223e0782e86282a96e001338fcada4426a5"],"state_sha256":"38adfea5cfd41a6e72a93df75158ddac4e99b98ac9cbbc7b4c3466152c177562"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"97NP8b6utrn1tu5YT3zI60xWprKhPUtUpLu81PoFaP/Cd5ft3SsxLbHtnLK9g7kkeEVuyqqsBH/VIKuKywcgDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:43:41.224426Z","bundle_sha256":"63136392c09150b22ad024f7559f48508b3c2fe871e35646835062c39ee769a1"}}