{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:A22VABVUHPCA43O72RU5LFWCXU","short_pith_number":"pith:A22VABVU","canonical_record":{"source":{"id":"1503.07064","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-24T14:56:29Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"d319f0c1d10ad90b89f36a83b96a02df4f5621f28ced7ff29c057a3b574a44fc","abstract_canon_sha256":"b1f664990615402c9832d5b2361833b05e7667b19065a19242c03c0185af269c"},"schema_version":"1.0"},"canonical_sha256":"06b55006b43bc40e6ddfd469d596c2bd1cbadf9182267e56f4b78efdc84001c5","source":{"kind":"arxiv","id":"1503.07064","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07064","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07064v1","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07064","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"A22VABVUHPCA","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"A22VABVUHPCA43O7","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"A22VABVU","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:A22VABVUHPCA43O72RU5LFWCXU","target":"record","payload":{"canonical_record":{"source":{"id":"1503.07064","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-24T14:56:29Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"d319f0c1d10ad90b89f36a83b96a02df4f5621f28ced7ff29c057a3b574a44fc","abstract_canon_sha256":"b1f664990615402c9832d5b2361833b05e7667b19065a19242c03c0185af269c"},"schema_version":"1.0"},"canonical_sha256":"06b55006b43bc40e6ddfd469d596c2bd1cbadf9182267e56f4b78efdc84001c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:20:29.465279Z","signature_b64":"8cI0v6bivPl4r5iG1zqQKMjhlCShLLTz9bWee17htJMwNyyw8qvJkQknatyPk/E1zNTKZ3WxJQISsoFInBnLDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06b55006b43bc40e6ddfd469d596c2bd1cbadf9182267e56f4b78efdc84001c5","last_reissued_at":"2026-05-18T02:20:29.464873Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:20:29.464873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.07064","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":"2026-05-18T02:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2vfA4MYHvGiESraNZnxB1uND3v8AxUzt7EtqcUBWQ7yJwze/8O9wovcbYYCC+f0KSpq4p2Cba6RKOo33UtsyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T08:48:28.281515Z"},"content_sha256":"4933335608aba2f0174162633f120fbeb0413e7ba4e40ccc6af9890f381330dd","schema_version":"1.0","event_id":"sha256:4933335608aba2f0174162633f120fbeb0413e7ba4e40ccc6af9890f381330dd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:A22VABVUHPCA43O72RU5LFWCXU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comments on the radial distribution of charged particles in a magnetic field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"H. Backe","submitted_at":"2015-03-24T14:56:29Z","abstract_excerpt":"Magnetic guiding fields in combination with energy dispersive semiconductor detectors have been employed already more than 50 years ago for in-beam internal conversion electron spectroscopy. Even then it was recognized that efficiency modulations may appear as function of the electron energy, arising when electrons hit a baffle or miss the sensitive area of the detector. Current high precision beta decay experiments of polarized neutrons with conceptional similar experimental devices resulted in a detailed study of the point spread function (PSF). The latter describes the radial probability di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07064","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":"2026-05-18T02:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+MLRS+c/zAUxmsBXPsGni/jOwKYUspvBNSmQYHyBxwtxQuYGtFgL7A7bLVJlpcWmhjt4VYZd/hnWjmE2LLC5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T08:48:28.281927Z"},"content_sha256":"d8fe0176e8bf7d0cd2621a4905103390b8c7263e35f40395c23130ffba9e30d5","schema_version":"1.0","event_id":"sha256:d8fe0176e8bf7d0cd2621a4905103390b8c7263e35f40395c23130ffba9e30d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A22VABVUHPCA43O72RU5LFWCXU/bundle.json","state_url":"https://pith.science/pith/A22VABVUHPCA43O72RU5LFWCXU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A22VABVUHPCA43O72RU5LFWCXU/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":"2026-07-05T08:48:28Z","links":{"resolver":"https://pith.science/pith/A22VABVUHPCA43O72RU5LFWCXU","bundle":"https://pith.science/pith/A22VABVUHPCA43O72RU5LFWCXU/bundle.json","state":"https://pith.science/pith/A22VABVUHPCA43O72RU5LFWCXU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A22VABVUHPCA43O72RU5LFWCXU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:A22VABVUHPCA43O72RU5LFWCXU","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":"b1f664990615402c9832d5b2361833b05e7667b19065a19242c03c0185af269c","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-24T14:56:29Z","title_canon_sha256":"d319f0c1d10ad90b89f36a83b96a02df4f5621f28ced7ff29c057a3b574a44fc"},"schema_version":"1.0","source":{"id":"1503.07064","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07064","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07064v1","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07064","created_at":"2026-05-18T02:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"A22VABVUHPCA","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"A22VABVUHPCA43O7","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"A22VABVU","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:d8fe0176e8bf7d0cd2621a4905103390b8c7263e35f40395c23130ffba9e30d5","target":"graph","created_at":"2026-05-18T02:20:29Z","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":"Magnetic guiding fields in combination with energy dispersive semiconductor detectors have been employed already more than 50 years ago for in-beam internal conversion electron spectroscopy. Even then it was recognized that efficiency modulations may appear as function of the electron energy, arising when electrons hit a baffle or miss the sensitive area of the detector. Current high precision beta decay experiments of polarized neutrons with conceptional similar experimental devices resulted in a detailed study of the point spread function (PSF). The latter describes the radial probability di","authors_text":"H. Backe","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-24T14:56:29Z","title":"Comments on the radial distribution of charged particles in a magnetic field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07064","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":"sha256:4933335608aba2f0174162633f120fbeb0413e7ba4e40ccc6af9890f381330dd","target":"record","created_at":"2026-05-18T02:20:29Z","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":"b1f664990615402c9832d5b2361833b05e7667b19065a19242c03c0185af269c","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-24T14:56:29Z","title_canon_sha256":"d319f0c1d10ad90b89f36a83b96a02df4f5621f28ced7ff29c057a3b574a44fc"},"schema_version":"1.0","source":{"id":"1503.07064","kind":"arxiv","version":1}},"canonical_sha256":"06b55006b43bc40e6ddfd469d596c2bd1cbadf9182267e56f4b78efdc84001c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06b55006b43bc40e6ddfd469d596c2bd1cbadf9182267e56f4b78efdc84001c5","first_computed_at":"2026-05-18T02:20:29.464873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:20:29.464873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8cI0v6bivPl4r5iG1zqQKMjhlCShLLTz9bWee17htJMwNyyw8qvJkQknatyPk/E1zNTKZ3WxJQISsoFInBnLDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:20:29.465279Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.07064","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4933335608aba2f0174162633f120fbeb0413e7ba4e40ccc6af9890f381330dd","sha256:d8fe0176e8bf7d0cd2621a4905103390b8c7263e35f40395c23130ffba9e30d5"],"state_sha256":"de7d4c30072d0fcc851dcbd2db910881a28cd30c5c395095aca64e7b0257459f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SjgnwOKDWnZ1gDOFywYdcSveCKHWBN0cBA/Lx2dzlsQ03epb7CcoseowM4gTPpzZn7wBdqxUsihTXSrHCvuxCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T08:48:28.284090Z","bundle_sha256":"0839cd78f2036570e9653845493ac8fb328cb3c46ee9ac388cc293c0f0a08a80"}}