{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3YSZSPJ6KRGIIBC4XX7DQDLEJH","short_pith_number":"pith:3YSZSPJ6","canonical_record":{"source":{"id":"2111.08167","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-11-16T00:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"7aed40f50536028b801317e2a4625d8e739524ffa1c8d404846e94d22414a6f2","abstract_canon_sha256":"87ac7c9894c295da8b53e0287a75a89f3666d9bd87af1184ddda87f8000d05b1"},"schema_version":"1.0"},"canonical_sha256":"de25993d3e544c84045cbdfe380d6449f835faeea15f54a9da233e0705353586","source":{"kind":"arxiv","id":"2111.08167","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.08167","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"arxiv_version","alias_value":"2111.08167v2","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.08167","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_12","alias_value":"3YSZSPJ6KRGI","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_16","alias_value":"3YSZSPJ6KRGIIBC4","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_8","alias_value":"3YSZSPJ6","created_at":"2026-07-05T04:18:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3YSZSPJ6KRGIIBC4XX7DQDLEJH","target":"record","payload":{"canonical_record":{"source":{"id":"2111.08167","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-11-16T00:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"7aed40f50536028b801317e2a4625d8e739524ffa1c8d404846e94d22414a6f2","abstract_canon_sha256":"87ac7c9894c295da8b53e0287a75a89f3666d9bd87af1184ddda87f8000d05b1"},"schema_version":"1.0"},"canonical_sha256":"de25993d3e544c84045cbdfe380d6449f835faeea15f54a9da233e0705353586","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:18:49.483475Z","signature_b64":"GYGNSlhxW9OGjCHMJdIcTzPA6O+RwxoyCRgOe55RKqHALjpdMU78uIHqiwtRRgWLsBgTbcIMfGZSZsDHDDuzDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de25993d3e544c84045cbdfe380d6449f835faeea15f54a9da233e0705353586","last_reissued_at":"2026-07-05T04:18:49.483078Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:18:49.483078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.08167","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":"2026-07-05T04:18:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1bTXeXL7G8KGwqE87z5W2BC8jM+ZQCMLCIitXXPqNPKXsAGOSk0/QKm0iHEgt4b545bpCn5tY7PGkyw2X7+Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T13:19:59.120188Z"},"content_sha256":"f0dc1f28868306b835df1eeb62238eb5082365d8a8e020a7d9d09a48e57eae6d","schema_version":"1.0","event_id":"sha256:f0dc1f28868306b835df1eeb62238eb5082365d8a8e020a7d9d09a48e57eae6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3YSZSPJ6KRGIIBC4XX7DQDLEJH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helicity transfer in strong laser fields via the electron anomalous magnetic moment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Christoph H. Keitel, Karen Z. Hatsagortsyan, Yan-Fei Li, Yue-Yue Chen","submitted_at":"2021-11-16T00:53:16Z","abstract_excerpt":"Electron beam longitudinal polarization during the interaction with counterpropagating circularly-polarized ultraintense laser pulses is investigated, while accounting for the anomalous magnetic moment of the electron. Although it is known that the helicity transfer from the laser photons to the electron beam is suppressed in linear and nonlinear Compton scattering processes, we show that the helicity transfer nevertheless can happen via an intermediate step of the electron radiative transverse polarization, phase-matched with the driving field, followed up by spin rotation into the longitudin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.08167","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2111.08167/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:18:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b5F+NIUct4iyZOf5PmNGYRR8WfkkXJVmBXv0XnBTMXmDeE+mnyMMLRwdJ7oMu0mbOpwJviDxiGC39CXx42qICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T13:19:59.120583Z"},"content_sha256":"ef4da88b65a5e253e27d3ca90c1c2f5c1a8689fc5702ea8c093386d4251c1f73","schema_version":"1.0","event_id":"sha256:ef4da88b65a5e253e27d3ca90c1c2f5c1a8689fc5702ea8c093386d4251c1f73"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/bundle.json","state_url":"https://pith.science/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/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":"2026-07-26T13:19:59Z","links":{"resolver":"https://pith.science/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH","bundle":"https://pith.science/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/bundle.json","state":"https://pith.science/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3YSZSPJ6KRGIIBC4XX7DQDLEJH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3YSZSPJ6KRGIIBC4XX7DQDLEJH","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":"87ac7c9894c295da8b53e0287a75a89f3666d9bd87af1184ddda87f8000d05b1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-11-16T00:53:16Z","title_canon_sha256":"7aed40f50536028b801317e2a4625d8e739524ffa1c8d404846e94d22414a6f2"},"schema_version":"1.0","source":{"id":"2111.08167","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.08167","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"arxiv_version","alias_value":"2111.08167v2","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.08167","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_12","alias_value":"3YSZSPJ6KRGI","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_16","alias_value":"3YSZSPJ6KRGIIBC4","created_at":"2026-07-05T04:18:49Z"},{"alias_kind":"pith_short_8","alias_value":"3YSZSPJ6","created_at":"2026-07-05T04:18:49Z"}],"graph_snapshots":[{"event_id":"sha256:ef4da88b65a5e253e27d3ca90c1c2f5c1a8689fc5702ea8c093386d4251c1f73","target":"graph","created_at":"2026-07-05T04:18:49Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2111.08167/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Electron beam longitudinal polarization during the interaction with counterpropagating circularly-polarized ultraintense laser pulses is investigated, while accounting for the anomalous magnetic moment of the electron. Although it is known that the helicity transfer from the laser photons to the electron beam is suppressed in linear and nonlinear Compton scattering processes, we show that the helicity transfer nevertheless can happen via an intermediate step of the electron radiative transverse polarization, phase-matched with the driving field, followed up by spin rotation into the longitudin","authors_text":"Christoph H. Keitel, Karen Z. Hatsagortsyan, Yan-Fei Li, Yue-Yue Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-11-16T00:53:16Z","title":"Helicity transfer in strong laser fields via the electron anomalous magnetic moment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.08167","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:f0dc1f28868306b835df1eeb62238eb5082365d8a8e020a7d9d09a48e57eae6d","target":"record","created_at":"2026-07-05T04:18:49Z","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":"87ac7c9894c295da8b53e0287a75a89f3666d9bd87af1184ddda87f8000d05b1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-11-16T00:53:16Z","title_canon_sha256":"7aed40f50536028b801317e2a4625d8e739524ffa1c8d404846e94d22414a6f2"},"schema_version":"1.0","source":{"id":"2111.08167","kind":"arxiv","version":2}},"canonical_sha256":"de25993d3e544c84045cbdfe380d6449f835faeea15f54a9da233e0705353586","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de25993d3e544c84045cbdfe380d6449f835faeea15f54a9da233e0705353586","first_computed_at":"2026-07-05T04:18:49.483078Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:18:49.483078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GYGNSlhxW9OGjCHMJdIcTzPA6O+RwxoyCRgOe55RKqHALjpdMU78uIHqiwtRRgWLsBgTbcIMfGZSZsDHDDuzDw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:18:49.483475Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.08167","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0dc1f28868306b835df1eeb62238eb5082365d8a8e020a7d9d09a48e57eae6d","sha256:ef4da88b65a5e253e27d3ca90c1c2f5c1a8689fc5702ea8c093386d4251c1f73"],"state_sha256":"e4bf6c86d2fa9020f06c098ca7a1089ae0d42ff1c472479813d0f8c99f16f287"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JjN5uHDjFcI4cl3gDSZyvUFGBDpjhmsM3wQEdiLrOLVIunKPEiTaYnnK0POAhqbLlM8QuWHj3bHoFwKwD1RZBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T13:19:59.122690Z","bundle_sha256":"d0463ad37a5c65bc2d76716a84a2326f85556e5e1f23ac6436010c127f8e6829"}}