{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WSTCE7CIQAE2CQ5AN5EYHJF54I","short_pith_number":"pith:WSTCE7CI","canonical_record":{"source":{"id":"1112.1816","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-12-08T12:13:52Z","cross_cats_sorted":[],"title_canon_sha256":"4249d604ab11b24708e049a30af2e183b801947de73c545d1b5376985e475979","abstract_canon_sha256":"c21d0efa05ec0728041f4b13be61f005600c1e4bc8d89e026eef4dc7f723b642"},"schema_version":"1.0"},"canonical_sha256":"b4a6227c488009a143a06f4983a4bde21d5835738aa3cff3e1f07a2fdcd1d697","source":{"kind":"arxiv","id":"1112.1816","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1816","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1816v1","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1816","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"pith_short_12","alias_value":"WSTCE7CIQAE2","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WSTCE7CIQAE2CQ5A","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WSTCE7CI","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WSTCE7CIQAE2CQ5AN5EYHJF54I","target":"record","payload":{"canonical_record":{"source":{"id":"1112.1816","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-12-08T12:13:52Z","cross_cats_sorted":[],"title_canon_sha256":"4249d604ab11b24708e049a30af2e183b801947de73c545d1b5376985e475979","abstract_canon_sha256":"c21d0efa05ec0728041f4b13be61f005600c1e4bc8d89e026eef4dc7f723b642"},"schema_version":"1.0"},"canonical_sha256":"b4a6227c488009a143a06f4983a4bde21d5835738aa3cff3e1f07a2fdcd1d697","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:45.593254Z","signature_b64":"SbHmL/y/RrpNK92T5/6Ph+HgfZnz9NFY2Na53CmTqbrpi5O2Icql/5CF88I6x5oKzOQekK3Tp3vqVmApgCmiCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4a6227c488009a143a06f4983a4bde21d5835738aa3cff3e1f07a2fdcd1d697","last_reissued_at":"2026-05-18T04:06:45.592778Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:45.592778Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.1816","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":"2026-05-18T04:06:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lDTdUADr5MfQIEhMpTJBtzmxVE/WbqIqlvhNod6hu+7aSLEBQf26BkQKZL45BC2IkiaA5/3CpKFJvUSDibfmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:19:52.146333Z"},"content_sha256":"bad8319207364b6f4d8dbde3a768cd8975e619311e081e8ea5dda34794f114b9","schema_version":"1.0","event_id":"sha256:bad8319207364b6f4d8dbde3a768cd8975e619311e081e8ea5dda34794f114b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WSTCE7CIQAE2CQ5AN5EYHJF54I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Laser-driven collimated tens-GeV monoenergetic protons from mass-limited target plus preformed channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"F. L. Zheng, H. B. Cai, H. C. Wu, M. Y. Yu, S. Z. Wu, T. Tajima, X. Q. Yan, X. T. He","submitted_at":"2011-12-08T12:13:52Z","abstract_excerpt":"Proton acceleration by ultra-intense laser pulse irradiating a target with cross-section smaller than the laser spot size and connected to a parabolic density channel is investigated. The target splits the laser into two parallel propagating parts, which snowplow the back-side plasma electrons along their paths, creating two adjacent parallel wakes and an intense return current in the gap between them. The radiation-pressure pre-accelerated target protons trapped in the wake fields now undergo acceleration as well as collimation by the quasistatic wake electrostatic and magnetic fields. Partic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1816","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":"2026-05-18T04:06:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vuCmdJAUCKJwNFnRVeJyzbl+uWPKk0JO7dv1GBCKCwOfYz+eiJHuc6FzLV8dNUF6dCeFHjJz6NirLQ4yFb6vCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:19:52.146687Z"},"content_sha256":"938a2cb053db33bf193fbfffb91f42f41fd2748b2be5d12c13212bebd10f5925","schema_version":"1.0","event_id":"sha256:938a2cb053db33bf193fbfffb91f42f41fd2748b2be5d12c13212bebd10f5925"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/bundle.json","state_url":"https://pith.science/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/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":"2026-06-21T23:19:52Z","links":{"resolver":"https://pith.science/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I","bundle":"https://pith.science/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/bundle.json","state":"https://pith.science/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WSTCE7CIQAE2CQ5AN5EYHJF54I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WSTCE7CIQAE2CQ5AN5EYHJF54I","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":"c21d0efa05ec0728041f4b13be61f005600c1e4bc8d89e026eef4dc7f723b642","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-12-08T12:13:52Z","title_canon_sha256":"4249d604ab11b24708e049a30af2e183b801947de73c545d1b5376985e475979"},"schema_version":"1.0","source":{"id":"1112.1816","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1816","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1816v1","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1816","created_at":"2026-05-18T04:06:45Z"},{"alias_kind":"pith_short_12","alias_value":"WSTCE7CIQAE2","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WSTCE7CIQAE2CQ5A","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WSTCE7CI","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:938a2cb053db33bf193fbfffb91f42f41fd2748b2be5d12c13212bebd10f5925","target":"graph","created_at":"2026-05-18T04:06:45Z","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":"Proton acceleration by ultra-intense laser pulse irradiating a target with cross-section smaller than the laser spot size and connected to a parabolic density channel is investigated. The target splits the laser into two parallel propagating parts, which snowplow the back-side plasma electrons along their paths, creating two adjacent parallel wakes and an intense return current in the gap between them. The radiation-pressure pre-accelerated target protons trapped in the wake fields now undergo acceleration as well as collimation by the quasistatic wake electrostatic and magnetic fields. Partic","authors_text":"F. L. Zheng, H. B. Cai, H. C. Wu, M. Y. Yu, S. Z. Wu, T. Tajima, X. Q. Yan, X. T. He","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-12-08T12:13:52Z","title":"Laser-driven collimated tens-GeV monoenergetic protons from mass-limited target plus preformed channel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1816","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:bad8319207364b6f4d8dbde3a768cd8975e619311e081e8ea5dda34794f114b9","target":"record","created_at":"2026-05-18T04:06:45Z","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":"c21d0efa05ec0728041f4b13be61f005600c1e4bc8d89e026eef4dc7f723b642","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-12-08T12:13:52Z","title_canon_sha256":"4249d604ab11b24708e049a30af2e183b801947de73c545d1b5376985e475979"},"schema_version":"1.0","source":{"id":"1112.1816","kind":"arxiv","version":1}},"canonical_sha256":"b4a6227c488009a143a06f4983a4bde21d5835738aa3cff3e1f07a2fdcd1d697","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4a6227c488009a143a06f4983a4bde21d5835738aa3cff3e1f07a2fdcd1d697","first_computed_at":"2026-05-18T04:06:45.592778Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:06:45.592778Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SbHmL/y/RrpNK92T5/6Ph+HgfZnz9NFY2Na53CmTqbrpi5O2Icql/5CF88I6x5oKzOQekK3Tp3vqVmApgCmiCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:06:45.593254Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.1816","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bad8319207364b6f4d8dbde3a768cd8975e619311e081e8ea5dda34794f114b9","sha256:938a2cb053db33bf193fbfffb91f42f41fd2748b2be5d12c13212bebd10f5925"],"state_sha256":"6d4f914962425a453bf254b7f3d528f4c9c5d3643c79e27679a7fff3fe21b50c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BvMKXuKGyhuikxZ+y14FHoggPRcUoVQ6uwEtYAocjLmA/DV3MNQ1QGUUfj2ra+K6zZdV1sUzjyJFZP4pzkNDBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T23:19:52.148792Z","bundle_sha256":"2e4ad61fca38188fabf5901f05ad0b631db01174305d9f72e6cc3db026f500c7"}}