{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TG6BL43TMW366S6FRIMUZW2TUC","short_pith_number":"pith:TG6BL43T","canonical_record":{"source":{"id":"1903.01717","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-05T08:07:03Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"629c2406a2e9277c311d3f05b4178c51f29014168afcc1fdc46fc275fe20c692","abstract_canon_sha256":"33ce340facf05732c0e9ac13217ea5ec6c31a095a6b35dc90fce38b353ba72f2"},"schema_version":"1.0"},"canonical_sha256":"99bc15f37365b7ef4bc58a194cdb53a0bd677cd136fe9bdec5b3b26b2b188579","source":{"kind":"arxiv","id":"1903.01717","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01717","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01717v2","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01717","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"pith_short_12","alias_value":"TG6BL43TMW36","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TG6BL43TMW366S6F","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TG6BL43T","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TG6BL43TMW366S6FRIMUZW2TUC","target":"record","payload":{"canonical_record":{"source":{"id":"1903.01717","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-05T08:07:03Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"629c2406a2e9277c311d3f05b4178c51f29014168afcc1fdc46fc275fe20c692","abstract_canon_sha256":"33ce340facf05732c0e9ac13217ea5ec6c31a095a6b35dc90fce38b353ba72f2"},"schema_version":"1.0"},"canonical_sha256":"99bc15f37365b7ef4bc58a194cdb53a0bd677cd136fe9bdec5b3b26b2b188579","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:15.605296Z","signature_b64":"+Vx8mKSiIljwYY5+2wKtBBiDJauwMNBvqGZhnwGAi94mO/y9MAVp9X7EvPYwCTw2XsRt+Jrcb2qBiZpd9bxGBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99bc15f37365b7ef4bc58a194cdb53a0bd677cd136fe9bdec5b3b26b2b188579","last_reissued_at":"2026-05-17T23:47:15.604814Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:15.604814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.01717","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":"2026-05-17T23:47:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QvG0aZKbHnwJvcVoV/k9f18m4VG0GWjNOrU2gsjwOa9hdffZNmG1kKPWPLV1XixGj+LzB+QHjxqhYiLJ2jP7Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:49:03.990506Z"},"content_sha256":"6945db92c6ecae41f8ae88282713f7dfe8d847384c710c1dbae4f73a38f801f4","schema_version":"1.0","event_id":"sha256:6945db92c6ecae41f8ae88282713f7dfe8d847384c710c1dbae4f73a38f801f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TG6BL43TMW366S6FRIMUZW2TUC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the electron transmission rate of the gating foil for the TPC of the ILC experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Koto, A. Shoji, A. Sugiyama, D. Arai, H. Qi, J. Tian, K. Fujii, K. Ikematsu, K. Katsuki, K. Negishi, M. Iwamura, M. Kobayashi, M. Yoshikai, P. Gros, R.D. Settles, R. Yonamine, S. Kawada, S. Narita, T. Fusayasu, T. Kawaguchi, T. Matsuda, T. Ogawa, T. Takahashi, T. Watanabe, Y. Aoki, Y. Kato","submitted_at":"2019-03-05T08:07:03Z","abstract_excerpt":"We have developed a gating foil for the time projection chamber envisaged as a central tracker for the international linear collider experiment. It has a structure similar to the Gas Electron Multiplier (GEM) with a higher optical aperture ratio and functions as an ion gate without gas amplification. The transmission rate for electrons was measured in a counting mode for a wide range of the voltages applied across the foil using an $^{55}$Fe source and a laser in the absence of a magnetic field. The blocking power of the foil against positive ions was estimated from the electron transmissions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01717","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":"2026-05-17T23:47:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WqVMDDDYHgHu2iVU6gCqFkL94JO6YRFt+fY4MKr3CphhOvJE7sUl9cLXidc2zt1TwovvwLgJl4vf4v49JN2PCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:49:03.991189Z"},"content_sha256":"3be6e263278c9c74e282e66c126f119d5abe3e25423904946ab54b29dc6c1d4d","schema_version":"1.0","event_id":"sha256:3be6e263278c9c74e282e66c126f119d5abe3e25423904946ab54b29dc6c1d4d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TG6BL43TMW366S6FRIMUZW2TUC/bundle.json","state_url":"https://pith.science/pith/TG6BL43TMW366S6FRIMUZW2TUC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TG6BL43TMW366S6FRIMUZW2TUC/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":"2026-05-27T02:49:03Z","links":{"resolver":"https://pith.science/pith/TG6BL43TMW366S6FRIMUZW2TUC","bundle":"https://pith.science/pith/TG6BL43TMW366S6FRIMUZW2TUC/bundle.json","state":"https://pith.science/pith/TG6BL43TMW366S6FRIMUZW2TUC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TG6BL43TMW366S6FRIMUZW2TUC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TG6BL43TMW366S6FRIMUZW2TUC","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":"33ce340facf05732c0e9ac13217ea5ec6c31a095a6b35dc90fce38b353ba72f2","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-05T08:07:03Z","title_canon_sha256":"629c2406a2e9277c311d3f05b4178c51f29014168afcc1fdc46fc275fe20c692"},"schema_version":"1.0","source":{"id":"1903.01717","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01717","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01717v2","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01717","created_at":"2026-05-17T23:47:15Z"},{"alias_kind":"pith_short_12","alias_value":"TG6BL43TMW36","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TG6BL43TMW366S6F","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TG6BL43T","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:3be6e263278c9c74e282e66c126f119d5abe3e25423904946ab54b29dc6c1d4d","target":"graph","created_at":"2026-05-17T23:47:15Z","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 have developed a gating foil for the time projection chamber envisaged as a central tracker for the international linear collider experiment. It has a structure similar to the Gas Electron Multiplier (GEM) with a higher optical aperture ratio and functions as an ion gate without gas amplification. The transmission rate for electrons was measured in a counting mode for a wide range of the voltages applied across the foil using an $^{55}$Fe source and a laser in the absence of a magnetic field. The blocking power of the foil against positive ions was estimated from the electron transmissions.","authors_text":"A. Koto, A. Shoji, A. Sugiyama, D. Arai, H. Qi, J. Tian, K. Fujii, K. Ikematsu, K. Katsuki, K. Negishi, M. Iwamura, M. Kobayashi, M. Yoshikai, P. Gros, R.D. Settles, R. Yonamine, S. Kawada, S. Narita, T. Fusayasu, T. Kawaguchi, T. Matsuda, T. Ogawa, T. Takahashi, T. Watanabe, Y. Aoki, Y. Kato","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-05T08:07:03Z","title":"Measurement of the electron transmission rate of the gating foil for the TPC of the ILC experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01717","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":"sha256:6945db92c6ecae41f8ae88282713f7dfe8d847384c710c1dbae4f73a38f801f4","target":"record","created_at":"2026-05-17T23:47:15Z","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":"33ce340facf05732c0e9ac13217ea5ec6c31a095a6b35dc90fce38b353ba72f2","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-03-05T08:07:03Z","title_canon_sha256":"629c2406a2e9277c311d3f05b4178c51f29014168afcc1fdc46fc275fe20c692"},"schema_version":"1.0","source":{"id":"1903.01717","kind":"arxiv","version":2}},"canonical_sha256":"99bc15f37365b7ef4bc58a194cdb53a0bd677cd136fe9bdec5b3b26b2b188579","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99bc15f37365b7ef4bc58a194cdb53a0bd677cd136fe9bdec5b3b26b2b188579","first_computed_at":"2026-05-17T23:47:15.604814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:15.604814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+Vx8mKSiIljwYY5+2wKtBBiDJauwMNBvqGZhnwGAi94mO/y9MAVp9X7EvPYwCTw2XsRt+Jrcb2qBiZpd9bxGBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:15.605296Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.01717","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6945db92c6ecae41f8ae88282713f7dfe8d847384c710c1dbae4f73a38f801f4","sha256:3be6e263278c9c74e282e66c126f119d5abe3e25423904946ab54b29dc6c1d4d"],"state_sha256":"92166c6e9f4e84316c8400ce5fad31f028048bfddb1574740cf0a4a50f0fd712"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+fIoP8XicBcoVwntFCp8ckoEzct2pFxf38XFtczZ9NF0seIXd8ylbmMdT0UGqzIHmEPBgNYzH8hC6lnHV7neCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T02:49:03.994856Z","bundle_sha256":"e2c58c07ad7b516af931d2a34efa43344f14e6c6fedcc5d9a3ef8a16399f2463"}}