{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YMWV37GLOBZIRGKFPPHAK2TAE2","short_pith_number":"pith:YMWV37GL","canonical_record":{"source":{"id":"1306.0951","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-06-05T01:11:00Z","cross_cats_sorted":[],"title_canon_sha256":"1370855eadcd05a6834f6b511b1774e4fc75ce13ef9437fcb5e685958b40a57a","abstract_canon_sha256":"ca31b4ca2c7667b14b5edf64cc1f2e0f65dbff3bf0940e485508324f9665f777"},"schema_version":"1.0"},"canonical_sha256":"c32d5dfccb70728899457bce056a6026b04d43c98c834534ea589f1494ad7bba","source":{"kind":"arxiv","id":"1306.0951","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0951","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0951v1","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0951","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"pith_short_12","alias_value":"YMWV37GLOBZI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YMWV37GLOBZIRGKF","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YMWV37GL","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YMWV37GLOBZIRGKFPPHAK2TAE2","target":"record","payload":{"canonical_record":{"source":{"id":"1306.0951","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-06-05T01:11:00Z","cross_cats_sorted":[],"title_canon_sha256":"1370855eadcd05a6834f6b511b1774e4fc75ce13ef9437fcb5e685958b40a57a","abstract_canon_sha256":"ca31b4ca2c7667b14b5edf64cc1f2e0f65dbff3bf0940e485508324f9665f777"},"schema_version":"1.0"},"canonical_sha256":"c32d5dfccb70728899457bce056a6026b04d43c98c834534ea589f1494ad7bba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:32.829394Z","signature_b64":"/M32Y7IiZgjl23t8aG302B6NmQu06LAiccMcx5sOAK6bVYBDnkqj/+8ekbKvbuQPMHbKzWE/lJ7XJA89/7neBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c32d5dfccb70728899457bce056a6026b04d43c98c834534ea589f1494ad7bba","last_reissued_at":"2026-05-18T01:49:32.828838Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:32.828838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.0951","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":"2026-05-18T01:49:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nfJgDZgb14TJCIR7EOjwQaYOg+ji3mw9WoE8PGFIjxNwMJF3iSzaieeCrRF923/iF7WDwKmYmTzMQcBNYw4/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:55:09.122178Z"},"content_sha256":"eadaf59df8e4e2933a26f308474bc902d6ddb6516ac442360e6304097191876e","schema_version":"1.0","event_id":"sha256:eadaf59df8e4e2933a26f308474bc902d6ddb6516ac442360e6304097191876e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YMWV37GLOBZIRGKFPPHAK2TAE2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Velocity bunching in travelling wave accelerator with low acceleration gradient","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Qi-Ka Jia, Rui-Xuan Huang, Wei-Wei Li, Zhi-Gang He","submitted_at":"2013-06-05T01:11:00Z","abstract_excerpt":"We present the analytical and simulated results concerning the influences of the acceleration gradient in the velocity bunching process, which is a bunch compression scheme that uses a traveling wave accelerating structure as a compressor. Our study shows that the bunch compression application with low acceleration gradient is more tolerant to phase jitter and more successful to obtain compressed electron beam with symmetrical longitudinal distribution and low energy spread. We also present a transverse emittance compensation scheme to compensate the emittance growth caused by the increasing o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0951","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":"2026-05-18T01:49:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AY9t4aXXpoMYgTyTI3EBtj/AxS6pZGOXmBPBen5DOKJvILKlzm6ylQ1wqpbc1AsHvpZelizmsWBRYlMiMFTdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:55:09.122827Z"},"content_sha256":"fbf40c0e2bc5e7c44e53bb18588a5e223a8579cf60e6205cfac7b2621b22aae5","schema_version":"1.0","event_id":"sha256:fbf40c0e2bc5e7c44e53bb18588a5e223a8579cf60e6205cfac7b2621b22aae5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/bundle.json","state_url":"https://pith.science/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/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":"2026-05-26T13:55:09Z","links":{"resolver":"https://pith.science/pith/YMWV37GLOBZIRGKFPPHAK2TAE2","bundle":"https://pith.science/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/bundle.json","state":"https://pith.science/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YMWV37GLOBZIRGKFPPHAK2TAE2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YMWV37GLOBZIRGKFPPHAK2TAE2","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":"ca31b4ca2c7667b14b5edf64cc1f2e0f65dbff3bf0940e485508324f9665f777","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-06-05T01:11:00Z","title_canon_sha256":"1370855eadcd05a6834f6b511b1774e4fc75ce13ef9437fcb5e685958b40a57a"},"schema_version":"1.0","source":{"id":"1306.0951","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0951","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0951v1","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0951","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"pith_short_12","alias_value":"YMWV37GLOBZI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YMWV37GLOBZIRGKF","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YMWV37GL","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:fbf40c0e2bc5e7c44e53bb18588a5e223a8579cf60e6205cfac7b2621b22aae5","target":"graph","created_at":"2026-05-18T01:49:32Z","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":"We present the analytical and simulated results concerning the influences of the acceleration gradient in the velocity bunching process, which is a bunch compression scheme that uses a traveling wave accelerating structure as a compressor. Our study shows that the bunch compression application with low acceleration gradient is more tolerant to phase jitter and more successful to obtain compressed electron beam with symmetrical longitudinal distribution and low energy spread. We also present a transverse emittance compensation scheme to compensate the emittance growth caused by the increasing o","authors_text":"Qi-Ka Jia, Rui-Xuan Huang, Wei-Wei Li, Zhi-Gang He","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-06-05T01:11:00Z","title":"Velocity bunching in travelling wave accelerator with low acceleration gradient"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0951","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:eadaf59df8e4e2933a26f308474bc902d6ddb6516ac442360e6304097191876e","target":"record","created_at":"2026-05-18T01:49:32Z","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":"ca31b4ca2c7667b14b5edf64cc1f2e0f65dbff3bf0940e485508324f9665f777","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-06-05T01:11:00Z","title_canon_sha256":"1370855eadcd05a6834f6b511b1774e4fc75ce13ef9437fcb5e685958b40a57a"},"schema_version":"1.0","source":{"id":"1306.0951","kind":"arxiv","version":1}},"canonical_sha256":"c32d5dfccb70728899457bce056a6026b04d43c98c834534ea589f1494ad7bba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c32d5dfccb70728899457bce056a6026b04d43c98c834534ea589f1494ad7bba","first_computed_at":"2026-05-18T01:49:32.828838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:32.828838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/M32Y7IiZgjl23t8aG302B6NmQu06LAiccMcx5sOAK6bVYBDnkqj/+8ekbKvbuQPMHbKzWE/lJ7XJA89/7neBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:32.829394Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0951","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eadaf59df8e4e2933a26f308474bc902d6ddb6516ac442360e6304097191876e","sha256:fbf40c0e2bc5e7c44e53bb18588a5e223a8579cf60e6205cfac7b2621b22aae5"],"state_sha256":"98a3c0ad84488dea123b4c4c8c52885f346e4de35d9e5bbf4eab45c11b3b4aad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O1oAR/09g7jDJmNXTzWaZvd8fDc+KGUObHQ2cJxFkFB4NsqWdabPWgXMyX3J+S3/dLaPgCaC3oJ9Fgqfpg3rDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T13:55:09.126170Z","bundle_sha256":"0c57ce5fc634490423c23776cc64fab69ca2b30b0b612cf0e73a8317978cb670"}}