{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:EUUMLYR4RLFJMSVQJMCSVGTCAY","short_pith_number":"pith:EUUMLYR4","canonical_record":{"source":{"id":"1903.11858","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-28T09:42:09Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"b0d0d57dcbcf597341865663017d963e86958f9f216c705d983dad3c5812978e","abstract_canon_sha256":"fa57dd20769fce5219a6d02e223cf514d360fdbee81ad542ab544a476420864a"},"schema_version":"1.0"},"canonical_sha256":"2528c5e23c8aca964ab04b052a9a62060d48ede21941701e9664ae013745c6ef","source":{"kind":"arxiv","id":"1903.11858","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11858","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11858v2","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11858","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"pith_short_12","alias_value":"EUUMLYR4RLFJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EUUMLYR4RLFJMSVQ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EUUMLYR4","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:EUUMLYR4RLFJMSVQJMCSVGTCAY","target":"record","payload":{"canonical_record":{"source":{"id":"1903.11858","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-28T09:42:09Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"b0d0d57dcbcf597341865663017d963e86958f9f216c705d983dad3c5812978e","abstract_canon_sha256":"fa57dd20769fce5219a6d02e223cf514d360fdbee81ad542ab544a476420864a"},"schema_version":"1.0"},"canonical_sha256":"2528c5e23c8aca964ab04b052a9a62060d48ede21941701e9664ae013745c6ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:18.054444Z","signature_b64":"xZLsokrilAla0pqiStv4/A/lwf7iS7zs9AZfXRiGJCkdket/ntYRp1DBJPVdkJwfqfsS4kmuTDcMcFGDk3bZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2528c5e23c8aca964ab04b052a9a62060d48ede21941701e9664ae013745c6ef","last_reissued_at":"2026-05-17T23:46:18.053737Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:18.053737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.11858","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:46:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CMv+eEJ/FlXEvWDnB7N9Do4vpy5eNT7fJYL7531sHVjFBD4WM2kf8kAsMaGP1GHZf36Lgp2puXoymiWLY1FiAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:56:20.475898Z"},"content_sha256":"0431724c186e35ef26181c28b3aa781ab572b1c71ce78a45872b3e0a21ec03ba","schema_version":"1.0","event_id":"sha256:0431724c186e35ef26181c28b3aa781ab572b1c71ce78a45872b3e0a21ec03ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:EUUMLYR4RLFJMSVQJMCSVGTCAY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Operation of a Resistive Shell Liquid Argon Time Projection Chamber -- A new Approach to Electric-Field Shaping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Antonio Ereditato, David Lorca, Francesco Piastra, Igor Kreslo, James R. Sinclair, Michael S. Weber, Patrick P. Koller, Roman Berner, Thomas Mettler, Ting Miao, Yifan Chen","submitted_at":"2019-03-28T09:42:09Z","abstract_excerpt":"We present a new technology for the shaping of the electric field in Time Projection Chambers (TPCs) using a carbon-loaded polyimide foil. This technology allows for the minimisation of passive material near the active volume of the TPC and thus is capable to reduce background events originating from radioactive decays or scattering on the material itself. Furthermore, the high and continuous electric resistivity of the foil limits the power dissipation per unit area and minimizes the risks of damages in the case of an electric field breakdown. Replacing the conventional field cage with a resi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11858","kind":"arxiv","version":2},"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":"2026-05-17T23:46:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qapuZeqhZp45QnNPUxUSugny21HYZlLvD4xy+YhA5MvJh3F6tHD0iGCxxXVzHEDLJcuRh9XtpCvt54/aiR4NBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:56:20.476651Z"},"content_sha256":"26033fabd7b7b8e93f0c5c00b53405ad19d8cfdf22fa7c6fb9d02ef750b418bb","schema_version":"1.0","event_id":"sha256:26033fabd7b7b8e93f0c5c00b53405ad19d8cfdf22fa7c6fb9d02ef750b418bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/bundle.json","state_url":"https://pith.science/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/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":"2026-05-25T15:56:20Z","links":{"resolver":"https://pith.science/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY","bundle":"https://pith.science/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/bundle.json","state":"https://pith.science/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EUUMLYR4RLFJMSVQJMCSVGTCAY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EUUMLYR4RLFJMSVQJMCSVGTCAY","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":"fa57dd20769fce5219a6d02e223cf514d360fdbee81ad542ab544a476420864a","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-28T09:42:09Z","title_canon_sha256":"b0d0d57dcbcf597341865663017d963e86958f9f216c705d983dad3c5812978e"},"schema_version":"1.0","source":{"id":"1903.11858","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11858","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11858v2","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11858","created_at":"2026-05-17T23:46:18Z"},{"alias_kind":"pith_short_12","alias_value":"EUUMLYR4RLFJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"EUUMLYR4RLFJMSVQ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"EUUMLYR4","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:26033fabd7b7b8e93f0c5c00b53405ad19d8cfdf22fa7c6fb9d02ef750b418bb","target":"graph","created_at":"2026-05-17T23:46:18Z","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":"We present a new technology for the shaping of the electric field in Time Projection Chambers (TPCs) using a carbon-loaded polyimide foil. This technology allows for the minimisation of passive material near the active volume of the TPC and thus is capable to reduce background events originating from radioactive decays or scattering on the material itself. Furthermore, the high and continuous electric resistivity of the foil limits the power dissipation per unit area and minimizes the risks of damages in the case of an electric field breakdown. Replacing the conventional field cage with a resi","authors_text":"Antonio Ereditato, David Lorca, Francesco Piastra, Igor Kreslo, James R. Sinclair, Michael S. Weber, Patrick P. Koller, Roman Berner, Thomas Mettler, Ting Miao, Yifan Chen","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-28T09:42:09Z","title":"First Operation of a Resistive Shell Liquid Argon Time Projection Chamber -- A new Approach to Electric-Field Shaping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11858","kind":"arxiv","version":2},"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":"sha256:0431724c186e35ef26181c28b3aa781ab572b1c71ce78a45872b3e0a21ec03ba","target":"record","created_at":"2026-05-17T23:46:18Z","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":"fa57dd20769fce5219a6d02e223cf514d360fdbee81ad542ab544a476420864a","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-28T09:42:09Z","title_canon_sha256":"b0d0d57dcbcf597341865663017d963e86958f9f216c705d983dad3c5812978e"},"schema_version":"1.0","source":{"id":"1903.11858","kind":"arxiv","version":2}},"canonical_sha256":"2528c5e23c8aca964ab04b052a9a62060d48ede21941701e9664ae013745c6ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2528c5e23c8aca964ab04b052a9a62060d48ede21941701e9664ae013745c6ef","first_computed_at":"2026-05-17T23:46:18.053737Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:18.053737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZLsokrilAla0pqiStv4/A/lwf7iS7zs9AZfXRiGJCkdket/ntYRp1DBJPVdkJwfqfsS4kmuTDcMcFGDk3bZBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:18.054444Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.11858","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0431724c186e35ef26181c28b3aa781ab572b1c71ce78a45872b3e0a21ec03ba","sha256:26033fabd7b7b8e93f0c5c00b53405ad19d8cfdf22fa7c6fb9d02ef750b418bb"],"state_sha256":"bb4385c6e5a542a5ed1d2770b0ccfa9744370a32dd4d02d15164031ca5286eec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6By0UAQeGEevze2YiDP9UbQHYTdwQ8+oFjRgrfyIaZXo0jW/OYa32dGVsSjEVzkfGmiAD9keSa6AOdtiZY+LDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:56:20.480120Z","bundle_sha256":"f429b9ba0f694100082e29afcb03bcd1cb2649734a0fca23b1ec46cae3e305bd"}}