{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:K7UBN3YMU7YFTJGREARW4CCRGI","short_pith_number":"pith:K7UBN3YM","canonical_record":{"source":{"id":"1404.0294","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-04-01T16:11:30Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"2064384dee4f6a74d84134dde23944b042594f1a1649ef56e86a1b25245a905b","abstract_canon_sha256":"1ca1da0b0089f7738c029c30ac9ffd0c1a1fef5575f22fbe52fc3c1cbb1cae54"},"schema_version":"1.0"},"canonical_sha256":"57e816ef0ca7f059a4d120236e085132270fb6a72a6f1d0e3ca20c0bdd25339c","source":{"kind":"arxiv","id":"1404.0294","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.0294","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"arxiv_version","alias_value":"1404.0294v2","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.0294","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"pith_short_12","alias_value":"K7UBN3YMU7YF","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K7UBN3YMU7YFTJGR","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K7UBN3YM","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:K7UBN3YMU7YFTJGREARW4CCRGI","target":"record","payload":{"canonical_record":{"source":{"id":"1404.0294","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-04-01T16:11:30Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"2064384dee4f6a74d84134dde23944b042594f1a1649ef56e86a1b25245a905b","abstract_canon_sha256":"1ca1da0b0089f7738c029c30ac9ffd0c1a1fef5575f22fbe52fc3c1cbb1cae54"},"schema_version":"1.0"},"canonical_sha256":"57e816ef0ca7f059a4d120236e085132270fb6a72a6f1d0e3ca20c0bdd25339c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:32.967525Z","signature_b64":"fCVu1zQuH0Z3qXtCrAay/8nobgN2O1TU6pI7ImRfcCG37/eB4KMt7v+5Fj3v6p9AmRi/dyQ+dtZpqQJcgEHnBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57e816ef0ca7f059a4d120236e085132270fb6a72a6f1d0e3ca20c0bdd25339c","last_reissued_at":"2026-05-18T02:47:32.966936Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:32.966936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.0294","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":"2026-05-18T02:47:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J407lZ60mGEWyWeX02opGkB9rJ7PAcYlv+o1ssIl1j7HxczpCv10/yahBBQGZGHmF8hkeTXlBKt1sESaXCywBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:43:27.079357Z"},"content_sha256":"7760abada52a17a2380d68b442434338588313d02b9e68362f13015e74393a74","schema_version":"1.0","event_id":"sha256:7760abada52a17a2380d68b442434338588313d02b9e68362f13015e74393a74"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:K7UBN3YMU7YFTJGREARW4CCRGI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Laserwire at the Accelerator Test Facility 2 with Sub-Micrometre Resolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.acc-ph","authors_text":"A. Aryshev, D. F. Howell, J. Urakawa, K. Kruchinin, L. Corner, L. J. Nevay, N. Terunuma, P. Karataev, R. Walczak, S. T. Boogert","submitted_at":"2014-04-01T16:11:30Z","abstract_excerpt":"A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 (ATF2) at KEK. Special electron beam optics were developed to create an approximately 1 x 100 {\\mu}m (vertical x horizontal) electron beam at the laserwire location, which was profiled using a 150 mJ, 71 ps laser pulse with a wavelength of 532 nm. The precise characterisation of the laser propagation allows the non-Gaussian transverse profiles of the electron beam caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07 ${\\pm}$ 0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.0294","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":"2026-05-18T02:47:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0qbecPxiEQnL242/CCR8lC/SGzzlxwr2eTM1mxbxna60V4mO2Aljz8RTbEK/C1yVIo+RWg/RmN+B55HYRfa+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:43:27.080013Z"},"content_sha256":"467f90038d584800950f0770e2f5d73d0f28c96f44b1f3014285602797af03d6","schema_version":"1.0","event_id":"sha256:467f90038d584800950f0770e2f5d73d0f28c96f44b1f3014285602797af03d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7UBN3YMU7YFTJGREARW4CCRGI/bundle.json","state_url":"https://pith.science/pith/K7UBN3YMU7YFTJGREARW4CCRGI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7UBN3YMU7YFTJGREARW4CCRGI/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":"2026-05-25T12:43:27Z","links":{"resolver":"https://pith.science/pith/K7UBN3YMU7YFTJGREARW4CCRGI","bundle":"https://pith.science/pith/K7UBN3YMU7YFTJGREARW4CCRGI/bundle.json","state":"https://pith.science/pith/K7UBN3YMU7YFTJGREARW4CCRGI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7UBN3YMU7YFTJGREARW4CCRGI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:K7UBN3YMU7YFTJGREARW4CCRGI","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":"1ca1da0b0089f7738c029c30ac9ffd0c1a1fef5575f22fbe52fc3c1cbb1cae54","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-04-01T16:11:30Z","title_canon_sha256":"2064384dee4f6a74d84134dde23944b042594f1a1649ef56e86a1b25245a905b"},"schema_version":"1.0","source":{"id":"1404.0294","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.0294","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"arxiv_version","alias_value":"1404.0294v2","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.0294","created_at":"2026-05-18T02:47:32Z"},{"alias_kind":"pith_short_12","alias_value":"K7UBN3YMU7YF","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K7UBN3YMU7YFTJGR","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K7UBN3YM","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:467f90038d584800950f0770e2f5d73d0f28c96f44b1f3014285602797af03d6","target":"graph","created_at":"2026-05-18T02:47:32Z","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":"A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 (ATF2) at KEK. Special electron beam optics were developed to create an approximately 1 x 100 {\\mu}m (vertical x horizontal) electron beam at the laserwire location, which was profiled using a 150 mJ, 71 ps laser pulse with a wavelength of 532 nm. The precise characterisation of the laser propagation allows the non-Gaussian transverse profiles of the electron beam caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07 ${\\pm}$ 0","authors_text":"A. Aryshev, D. F. Howell, J. Urakawa, K. Kruchinin, L. Corner, L. J. Nevay, N. Terunuma, P. Karataev, R. Walczak, S. T. Boogert","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-04-01T16:11:30Z","title":"Laserwire at the Accelerator Test Facility 2 with Sub-Micrometre Resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.0294","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":"sha256:7760abada52a17a2380d68b442434338588313d02b9e68362f13015e74393a74","target":"record","created_at":"2026-05-18T02:47:32Z","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":"1ca1da0b0089f7738c029c30ac9ffd0c1a1fef5575f22fbe52fc3c1cbb1cae54","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-04-01T16:11:30Z","title_canon_sha256":"2064384dee4f6a74d84134dde23944b042594f1a1649ef56e86a1b25245a905b"},"schema_version":"1.0","source":{"id":"1404.0294","kind":"arxiv","version":2}},"canonical_sha256":"57e816ef0ca7f059a4d120236e085132270fb6a72a6f1d0e3ca20c0bdd25339c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57e816ef0ca7f059a4d120236e085132270fb6a72a6f1d0e3ca20c0bdd25339c","first_computed_at":"2026-05-18T02:47:32.966936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:32.966936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fCVu1zQuH0Z3qXtCrAay/8nobgN2O1TU6pI7ImRfcCG37/eB4KMt7v+5Fj3v6p9AmRi/dyQ+dtZpqQJcgEHnBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:32.967525Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.0294","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7760abada52a17a2380d68b442434338588313d02b9e68362f13015e74393a74","sha256:467f90038d584800950f0770e2f5d73d0f28c96f44b1f3014285602797af03d6"],"state_sha256":"ca2eced376f4b2797695f2b299a5f210d92e32077f574e0760b68ff268adc606"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N/mFrHwRKwXN8Fl3cuVjQNYMUSJDLWvbm1PPR6sL/AOrS+JA1ZhhVrfLmnREi90DzEijdDesBA6+BB4pXaPuBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:43:27.083447Z","bundle_sha256":"575dd1f91efe915de5b4683fcbe4270505fb6d012d5c621d139ea19ca42d649d"}}