{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:G6T7O7RZZTJBYJYSCMYUJAINHC","short_pith_number":"pith:G6T7O7RZ","canonical_record":{"source":{"id":"1904.03325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-06T00:53:47Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7e2b02b00f306a1a5211ace9f7a8a8a527b92ad90d4fd622ed9a4ae52df6754e","abstract_canon_sha256":"d37c401a6a5836d2489a0c250e0e3e9ddde43a1348a7c2172cfb2a2a4e3aa28c"},"schema_version":"1.0"},"canonical_sha256":"37a7f77e39ccd21c2712133144810d38b9846999ee5237047519ead3166a5285","source":{"kind":"arxiv","id":"1904.03325","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03325","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03325v2","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03325","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_12","alias_value":"G6T7O7RZZTJB","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_16","alias_value":"G6T7O7RZZTJBYJYS","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_8","alias_value":"G6T7O7RZ","created_at":"2026-07-05T00:51:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:G6T7O7RZZTJBYJYSCMYUJAINHC","target":"record","payload":{"canonical_record":{"source":{"id":"1904.03325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-06T00:53:47Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7e2b02b00f306a1a5211ace9f7a8a8a527b92ad90d4fd622ed9a4ae52df6754e","abstract_canon_sha256":"d37c401a6a5836d2489a0c250e0e3e9ddde43a1348a7c2172cfb2a2a4e3aa28c"},"schema_version":"1.0"},"canonical_sha256":"37a7f77e39ccd21c2712133144810d38b9846999ee5237047519ead3166a5285","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:51:02.076757Z","signature_b64":"ymgWDCOGzzkeodKEgyxmtSSQW13AJ/HlHbxI/K09ThMsORGj7MtfqGIw+BztNad4tWEVqCisKd0kQ9JM05brDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37a7f77e39ccd21c2712133144810d38b9846999ee5237047519ead3166a5285","last_reissued_at":"2026-07-05T00:51:02.076305Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:51:02.076305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.03325","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":"2026-07-05T00:51:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"02Atla6aN50og00Q9Q1T/bPOVG20I6BMEot0c6lw9i9Sib4WpFINk/hrx4deNba0luncLlLPYELIP2LmcphECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T23:45:48.978375Z"},"content_sha256":"7ccb895144e57d4df390355f812dcbbde671fa73bafb36fbc0d5ed2cfc537bd9","schema_version":"1.0","event_id":"sha256:7ccb895144e57d4df390355f812dcbbde671fa73bafb36fbc0d5ed2cfc537bd9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:G6T7O7RZZTJBYJYSCMYUJAINHC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"QED Phenomena in an Ultrastrong Magnetic Field. II. Electron-Positron Scattering, $e^\\pm$-Ion Scattering, and Relativistic Bremsstrahlung","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Alexander Kostenko (University of Toronto), Christopher Thompson (CITA)","submitted_at":"2019-04-06T00:53:47Z","abstract_excerpt":"This paper continues the approach of Kostenko \\& Thompson to calculating quantum electrodynamic processes in the ultrastrong magnetic field near some neutron stars, such as magnetars or merging binary neutron stars. Here we consider electron-positron scattering, the Coulomb scattering of electrons and positrons off ions, and relativistic $e^\\pm$-ion bremsstrahlung. The evaluation of differential and total cross sections simplifies considerably when the magnetic field lies in the range $10^3B_{\\rm Q} \\gg B \\gg B_{\\rm Q}$, where $B_{\\rm Q} \\equiv m^2/e = 4.4\\times 10^{13}$ G. Then, relativistic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03325","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/1904.03325/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":"2026-07-05T00:51:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nwer6R+93K098KA09IiTH2vEkDPzWsI0gPM1cHztDMPen2q19K1NjZK0YNoVPh8pl4rkWfGeGdgF/DGImjn5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T23:45:48.979007Z"},"content_sha256":"a72183ffb5c7e55bf46231d4bdfacf56051aff9e2c1b0767b3cd405079c623ca","schema_version":"1.0","event_id":"sha256:a72183ffb5c7e55bf46231d4bdfacf56051aff9e2c1b0767b3cd405079c623ca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/bundle.json","state_url":"https://pith.science/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/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":"2026-08-18T23:45:48Z","links":{"resolver":"https://pith.science/pith/G6T7O7RZZTJBYJYSCMYUJAINHC","bundle":"https://pith.science/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/bundle.json","state":"https://pith.science/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G6T7O7RZZTJBYJYSCMYUJAINHC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:G6T7O7RZZTJBYJYSCMYUJAINHC","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":"d37c401a6a5836d2489a0c250e0e3e9ddde43a1348a7c2172cfb2a2a4e3aa28c","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-06T00:53:47Z","title_canon_sha256":"7e2b02b00f306a1a5211ace9f7a8a8a527b92ad90d4fd622ed9a4ae52df6754e"},"schema_version":"1.0","source":{"id":"1904.03325","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03325","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03325v2","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03325","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_12","alias_value":"G6T7O7RZZTJB","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_16","alias_value":"G6T7O7RZZTJBYJYS","created_at":"2026-07-05T00:51:02Z"},{"alias_kind":"pith_short_8","alias_value":"G6T7O7RZ","created_at":"2026-07-05T00:51:02Z"}],"graph_snapshots":[{"event_id":"sha256:a72183ffb5c7e55bf46231d4bdfacf56051aff9e2c1b0767b3cd405079c623ca","target":"graph","created_at":"2026-07-05T00:51:02Z","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/1904.03325/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper continues the approach of Kostenko \\& Thompson to calculating quantum electrodynamic processes in the ultrastrong magnetic field near some neutron stars, such as magnetars or merging binary neutron stars. Here we consider electron-positron scattering, the Coulomb scattering of electrons and positrons off ions, and relativistic $e^\\pm$-ion bremsstrahlung. The evaluation of differential and total cross sections simplifies considerably when the magnetic field lies in the range $10^3B_{\\rm Q} \\gg B \\gg B_{\\rm Q}$, where $B_{\\rm Q} \\equiv m^2/e = 4.4\\times 10^{13}$ G. Then, relativistic ","authors_text":"Alexander Kostenko (University of Toronto), Christopher Thompson (CITA)","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-06T00:53:47Z","title":"QED Phenomena in an Ultrastrong Magnetic Field. II. Electron-Positron Scattering, $e^\\pm$-Ion Scattering, and Relativistic Bremsstrahlung"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03325","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":"sha256:7ccb895144e57d4df390355f812dcbbde671fa73bafb36fbc0d5ed2cfc537bd9","target":"record","created_at":"2026-07-05T00:51:02Z","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":"d37c401a6a5836d2489a0c250e0e3e9ddde43a1348a7c2172cfb2a2a4e3aa28c","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-06T00:53:47Z","title_canon_sha256":"7e2b02b00f306a1a5211ace9f7a8a8a527b92ad90d4fd622ed9a4ae52df6754e"},"schema_version":"1.0","source":{"id":"1904.03325","kind":"arxiv","version":2}},"canonical_sha256":"37a7f77e39ccd21c2712133144810d38b9846999ee5237047519ead3166a5285","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37a7f77e39ccd21c2712133144810d38b9846999ee5237047519ead3166a5285","first_computed_at":"2026-07-05T00:51:02.076305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:51:02.076305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ymgWDCOGzzkeodKEgyxmtSSQW13AJ/HlHbxI/K09ThMsORGj7MtfqGIw+BztNad4tWEVqCisKd0kQ9JM05brDw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:51:02.076757Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.03325","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ccb895144e57d4df390355f812dcbbde671fa73bafb36fbc0d5ed2cfc537bd9","sha256:a72183ffb5c7e55bf46231d4bdfacf56051aff9e2c1b0767b3cd405079c623ca"],"state_sha256":"979a988d28196f2f0447e06ce72aba935ad6154e607963b911a1eeebc3a91dcd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nTLKlN64fYLeVyBNFHX2O9gzzySvipMrF0nvsbcHuiEbWMgMY2jnd9HrSXBtcnZ62KI4D/8FDLdRZcRcTsKsBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T23:45:48.985786Z","bundle_sha256":"e81cb0ba8189bed6410ea2655ab6d2614d8d3dc62cf6cf6bbfe379023281d945"}}