{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:I6IACESKIKTIGTSSXH3FWX5K34","short_pith_number":"pith:I6IACESK","canonical_record":{"source":{"id":"1503.01009","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-03T16:54:52Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"78fe37101fdb1dac6ec6a3605ecd548e986d7f02a3b9f0d73689e158e2eaf219","abstract_canon_sha256":"649d1ccbd5afe195bb54648019bb1dd39df3e3bcd6446c4f97bb231328ccfe77"},"schema_version":"1.0"},"canonical_sha256":"479001124a42a6834e52b9f65b5faadf06fe271324b1a71743393694307fe7ee","source":{"kind":"arxiv","id":"1503.01009","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01009","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01009v1","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01009","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"I6IACESKIKTI","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"I6IACESKIKTIGTSS","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"I6IACESK","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:I6IACESKIKTIGTSSXH3FWX5K34","target":"record","payload":{"canonical_record":{"source":{"id":"1503.01009","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-03T16:54:52Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"78fe37101fdb1dac6ec6a3605ecd548e986d7f02a3b9f0d73689e158e2eaf219","abstract_canon_sha256":"649d1ccbd5afe195bb54648019bb1dd39df3e3bcd6446c4f97bb231328ccfe77"},"schema_version":"1.0"},"canonical_sha256":"479001124a42a6834e52b9f65b5faadf06fe271324b1a71743393694307fe7ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:47.916338Z","signature_b64":"Fnq+jI+t9GXGgRJH8lVWQ6yKz9P2GhSNPa75SK1T3dLos7SUNdUQq4QliA7Ib8SvFYuVww6VElOpOW7osJYwBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"479001124a42a6834e52b9f65b5faadf06fe271324b1a71743393694307fe7ee","last_reissued_at":"2026-05-18T02:25:47.915729Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:47.915729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.01009","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":"2026-05-18T02:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5lrdq1aVXMfq18PJ8i5hOQ68O57ekSbxOyDgnJ1wdqT3Fznficg6Z424W43lthVakwk0QcilkdKY+qYDOAHSCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:29:46.772468Z"},"content_sha256":"a737cb16a425e6856bb3ee1f41e2dc941fcaf40b820a9b4bb26dd9831d4d8517","schema_version":"1.0","event_id":"sha256:a737cb16a425e6856bb3ee1f41e2dc941fcaf40b820a9b4bb26dd9831d4d8517"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:I6IACESKIKTIGTSSXH3FWX5K34","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum radiation reaction in laser-electron beam collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"physics.plasm-ph","authors_text":"A. R. Bell, C. P. Ridgers, J. G. Kirk, T. G. Blackburn","submitted_at":"2015-03-03T16:54:52Z","abstract_excerpt":"It is possible using current high intensity laser facilities to reach the quantum radiation reaction regime for energetic electrons. An experiment using a wakefield accelerator to drive GeV electrons into a counterpropagating laser pulse would demonstrate the increase in the yield of high energy photons caused by the stochastic nature of quantum synchrotron emission: we show that a beam of $10^9$ 1 GeV electrons colliding with a 30 fs laser pulse of intensity $10^{22}~\\text{Wcm}^{-2}$ will emit 6300 photons with energy greater than 700 MeV, $60\\times$ the number predicted by classical theory."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01009","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":"2026-05-18T02:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wVwkm7d2wXjHvDLcL9m34d8iq0Q1A6HjSHizBuQIrf3JkKTucO81o+U4e4EAxVkDDlNJGQSNEkxRJinniGyTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:29:46.773120Z"},"content_sha256":"d74c5aba37cffe586ca057111a3128ae1903477dc5f2ddd9b1b9d7e5066fe971","schema_version":"1.0","event_id":"sha256:d74c5aba37cffe586ca057111a3128ae1903477dc5f2ddd9b1b9d7e5066fe971"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I6IACESKIKTIGTSSXH3FWX5K34/bundle.json","state_url":"https://pith.science/pith/I6IACESKIKTIGTSSXH3FWX5K34/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I6IACESKIKTIGTSSXH3FWX5K34/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":"2026-05-28T20:29:46Z","links":{"resolver":"https://pith.science/pith/I6IACESKIKTIGTSSXH3FWX5K34","bundle":"https://pith.science/pith/I6IACESKIKTIGTSSXH3FWX5K34/bundle.json","state":"https://pith.science/pith/I6IACESKIKTIGTSSXH3FWX5K34/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I6IACESKIKTIGTSSXH3FWX5K34/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:I6IACESKIKTIGTSSXH3FWX5K34","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":"649d1ccbd5afe195bb54648019bb1dd39df3e3bcd6446c4f97bb231328ccfe77","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-03T16:54:52Z","title_canon_sha256":"78fe37101fdb1dac6ec6a3605ecd548e986d7f02a3b9f0d73689e158e2eaf219"},"schema_version":"1.0","source":{"id":"1503.01009","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01009","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01009v1","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01009","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"I6IACESKIKTI","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"I6IACESKIKTIGTSS","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"I6IACESK","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:d74c5aba37cffe586ca057111a3128ae1903477dc5f2ddd9b1b9d7e5066fe971","target":"graph","created_at":"2026-05-18T02:25:47Z","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":"It is possible using current high intensity laser facilities to reach the quantum radiation reaction regime for energetic electrons. An experiment using a wakefield accelerator to drive GeV electrons into a counterpropagating laser pulse would demonstrate the increase in the yield of high energy photons caused by the stochastic nature of quantum synchrotron emission: we show that a beam of $10^9$ 1 GeV electrons colliding with a 30 fs laser pulse of intensity $10^{22}~\\text{Wcm}^{-2}$ will emit 6300 photons with energy greater than 700 MeV, $60\\times$ the number predicted by classical theory.","authors_text":"A. R. Bell, C. P. Ridgers, J. G. Kirk, T. G. Blackburn","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-03T16:54:52Z","title":"Quantum radiation reaction in laser-electron beam collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01009","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:a737cb16a425e6856bb3ee1f41e2dc941fcaf40b820a9b4bb26dd9831d4d8517","target":"record","created_at":"2026-05-18T02:25:47Z","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":"649d1ccbd5afe195bb54648019bb1dd39df3e3bcd6446c4f97bb231328ccfe77","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-03T16:54:52Z","title_canon_sha256":"78fe37101fdb1dac6ec6a3605ecd548e986d7f02a3b9f0d73689e158e2eaf219"},"schema_version":"1.0","source":{"id":"1503.01009","kind":"arxiv","version":1}},"canonical_sha256":"479001124a42a6834e52b9f65b5faadf06fe271324b1a71743393694307fe7ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"479001124a42a6834e52b9f65b5faadf06fe271324b1a71743393694307fe7ee","first_computed_at":"2026-05-18T02:25:47.915729Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:47.915729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fnq+jI+t9GXGgRJH8lVWQ6yKz9P2GhSNPa75SK1T3dLos7SUNdUQq4QliA7Ib8SvFYuVww6VElOpOW7osJYwBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:47.916338Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.01009","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a737cb16a425e6856bb3ee1f41e2dc941fcaf40b820a9b4bb26dd9831d4d8517","sha256:d74c5aba37cffe586ca057111a3128ae1903477dc5f2ddd9b1b9d7e5066fe971"],"state_sha256":"9a19aa3f065ae1102d949d4c64974c6a17d180f0a102368636e7c6d50ba2e1e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IdNBQks7eJBhSBpxyrXbvtK7I1FTd0uZGGKSxv22TWekTwqKn3UJOyJQ3EwskhpUZQ+17oYyXbEmIxEZI0EQAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:29:46.776712Z","bundle_sha256":"b3e4e7a4ca693bdf408439c88183be4553dc441aad330a5a175c05e11e40dec6"}}