{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WHGRQXL36HBMTFCYBD5DXEK4RC","short_pith_number":"pith:WHGRQXL3","canonical_record":{"source":{"id":"1405.7247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-05-28T14:10:58Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"30673370c405c84e5db1c4988551bfac66dc219f4135785fd1fedb00399d51a4","abstract_canon_sha256":"7b7c796ed0bc82c7fade614a11144f36352f922b29236d9437ef59b4063de680"},"schema_version":"1.0"},"canonical_sha256":"b1cd185d7bf1c2c9945808fa3b915c88bc8416e72a2bdaf7ca222226e52ef6b7","source":{"kind":"arxiv","id":"1405.7247","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.7247","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"arxiv_version","alias_value":"1405.7247v1","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.7247","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"pith_short_12","alias_value":"WHGRQXL36HBM","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WHGRQXL36HBMTFCY","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WHGRQXL3","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WHGRQXL36HBMTFCYBD5DXEK4RC","target":"record","payload":{"canonical_record":{"source":{"id":"1405.7247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-05-28T14:10:58Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"30673370c405c84e5db1c4988551bfac66dc219f4135785fd1fedb00399d51a4","abstract_canon_sha256":"7b7c796ed0bc82c7fade614a11144f36352f922b29236d9437ef59b4063de680"},"schema_version":"1.0"},"canonical_sha256":"b1cd185d7bf1c2c9945808fa3b915c88bc8416e72a2bdaf7ca222226e52ef6b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:50:52.484667Z","signature_b64":"aprL9FKdF/GepBu9nZppWsTEGABu095+BR2AwQxdfRmOn3Xj5g6F+dXIRPGI9pB2wLROT9QLtFuRNJL91VtUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1cd185d7bf1c2c9945808fa3b915c88bc8416e72a2bdaf7ca222226e52ef6b7","last_reissued_at":"2026-05-18T02:50:52.484098Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:50:52.484098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.7247","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":"2026-05-18T02:50:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hrsoA65l9JgIrhIgXecjmG3BWj9pAADC8+3YKt4a+I8ruGC8cXadMXN78rlpN+DcOLGUCBhwa4+kpqoeSoqnCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:25:49.170035Z"},"content_sha256":"1cd3841fe722e8711286ff04773ec3d04c2bf80e32a19e7b4ba8da40c1f02ef4","schema_version":"1.0","event_id":"sha256:1cd3841fe722e8711286ff04773ec3d04c2bf80e32a19e7b4ba8da40c1f02ef4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WHGRQXL36HBMTFCYBD5DXEK4RC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Atomic scale electron vortices for nanoresearch","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.optics","authors_text":"A. Steiger-Thirsfeld, G. van Tendeloo, J. Verbeeck, M. St\\\"oger-Pollach, P. Schattschneider, S. Lazar, S. L\\\"offler","submitted_at":"2014-05-28T14:10:58Z","abstract_excerpt":"Electron vortex beams were only recently discovered and their potential as a probe for magnetism in materials was shown. Here we demonstrate a new method to produce electron vortex beams with a diameter of less than 1.2 \\AA. This unique way to prepare free electrons to a state resembling atomic orbitals is fascinating from a fundamental physics point of view and opens the road for magnetic mapping with atomic resolution in an electron microscope."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.7247","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":"2026-05-18T02:50:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EkKTul80QY5WXlYL1FAhTrgav0n7ySooMcokR6wGsaIrDHsCDIiIA89Jw2zGVSPHiaxEOGJXmg2To539YErxBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:25:49.170430Z"},"content_sha256":"f260a749af6002a6c5f3a7cfddb6c4216b29d5ab9b68b2d532cdb579cbed6330","schema_version":"1.0","event_id":"sha256:f260a749af6002a6c5f3a7cfddb6c4216b29d5ab9b68b2d532cdb579cbed6330"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/bundle.json","state_url":"https://pith.science/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/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":"2026-05-30T02:25:49Z","links":{"resolver":"https://pith.science/pith/WHGRQXL36HBMTFCYBD5DXEK4RC","bundle":"https://pith.science/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/bundle.json","state":"https://pith.science/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WHGRQXL36HBMTFCYBD5DXEK4RC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WHGRQXL36HBMTFCYBD5DXEK4RC","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":"7b7c796ed0bc82c7fade614a11144f36352f922b29236d9437ef59b4063de680","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-05-28T14:10:58Z","title_canon_sha256":"30673370c405c84e5db1c4988551bfac66dc219f4135785fd1fedb00399d51a4"},"schema_version":"1.0","source":{"id":"1405.7247","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.7247","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"arxiv_version","alias_value":"1405.7247v1","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.7247","created_at":"2026-05-18T02:50:52Z"},{"alias_kind":"pith_short_12","alias_value":"WHGRQXL36HBM","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WHGRQXL36HBMTFCY","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WHGRQXL3","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:f260a749af6002a6c5f3a7cfddb6c4216b29d5ab9b68b2d532cdb579cbed6330","target":"graph","created_at":"2026-05-18T02:50:52Z","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":"Electron vortex beams were only recently discovered and their potential as a probe for magnetism in materials was shown. Here we demonstrate a new method to produce electron vortex beams with a diameter of less than 1.2 \\AA. This unique way to prepare free electrons to a state resembling atomic orbitals is fascinating from a fundamental physics point of view and opens the road for magnetic mapping with atomic resolution in an electron microscope.","authors_text":"A. Steiger-Thirsfeld, G. van Tendeloo, J. Verbeeck, M. St\\\"oger-Pollach, P. Schattschneider, S. Lazar, S. L\\\"offler","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-05-28T14:10:58Z","title":"Atomic scale electron vortices for nanoresearch"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.7247","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":"sha256:1cd3841fe722e8711286ff04773ec3d04c2bf80e32a19e7b4ba8da40c1f02ef4","target":"record","created_at":"2026-05-18T02:50:52Z","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":"7b7c796ed0bc82c7fade614a11144f36352f922b29236d9437ef59b4063de680","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-05-28T14:10:58Z","title_canon_sha256":"30673370c405c84e5db1c4988551bfac66dc219f4135785fd1fedb00399d51a4"},"schema_version":"1.0","source":{"id":"1405.7247","kind":"arxiv","version":1}},"canonical_sha256":"b1cd185d7bf1c2c9945808fa3b915c88bc8416e72a2bdaf7ca222226e52ef6b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1cd185d7bf1c2c9945808fa3b915c88bc8416e72a2bdaf7ca222226e52ef6b7","first_computed_at":"2026-05-18T02:50:52.484098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:50:52.484098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aprL9FKdF/GepBu9nZppWsTEGABu095+BR2AwQxdfRmOn3Xj5g6F+dXIRPGI9pB2wLROT9QLtFuRNJL91VtUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:50:52.484667Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.7247","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1cd3841fe722e8711286ff04773ec3d04c2bf80e32a19e7b4ba8da40c1f02ef4","sha256:f260a749af6002a6c5f3a7cfddb6c4216b29d5ab9b68b2d532cdb579cbed6330"],"state_sha256":"44160c2ef18cc686c8a32a9505e818509620f908a8b58094acd8d0fb505d46d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cD5sj3R9AgNtKYzZD/CQEhWcPSBavsmqmMxWJAswtJdT/+fgXseo/FZiR36KlLexC1OWfNA5Kx52AulMHYuZDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:25:49.172448Z","bundle_sha256":"b397331de59a8f8dc780150d852b4c72f51e32285c487fe306eaa0cf1193722e"}}