{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:3ZM4MTRG6M2L7JUIZFCS4C6A2R","short_pith_number":"pith:3ZM4MTRG","canonical_record":{"source":{"id":"1403.0010","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-02-28T21:01:12Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"08ed61b779705fbb48bfb4ec5a64327f5af39d0036ee64418f5fb26331424dae","abstract_canon_sha256":"7378d6a2299dee112ae073ca4e914b8a56ddd63edfe5ba7cc1e48f83b6c83168"},"schema_version":"1.0"},"canonical_sha256":"de59c64e26f334bfa688c9452e0bc0d477de6fc894f090310fe339ce65edaf2b","source":{"kind":"arxiv","id":"1403.0010","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.0010","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"1403.0010v2","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.0010","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"3ZM4MTRG6M2L","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3ZM4MTRG6M2L7JUI","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3ZM4MTRG","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:3ZM4MTRG6M2L7JUIZFCS4C6A2R","target":"record","payload":{"canonical_record":{"source":{"id":"1403.0010","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-02-28T21:01:12Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"08ed61b779705fbb48bfb4ec5a64327f5af39d0036ee64418f5fb26331424dae","abstract_canon_sha256":"7378d6a2299dee112ae073ca4e914b8a56ddd63edfe5ba7cc1e48f83b6c83168"},"schema_version":"1.0"},"canonical_sha256":"de59c64e26f334bfa688c9452e0bc0d477de6fc894f090310fe339ce65edaf2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:58.933421Z","signature_b64":"C9inh7HgEK2wOONLN+HOtf0IpuPUyN9d0ZJHimLEsU1ezVV6mLWWfcnGrgQk9mNB+RSvdZijoE8B25ZiMnotDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de59c64e26f334bfa688c9452e0bc0d477de6fc894f090310fe339ce65edaf2b","last_reissued_at":"2026-05-18T01:23:58.932766Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:58.932766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.0010","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":"2026-05-18T01:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+mgo2+68+PKXfGKBUt/uTEjLJehfpEYIj7ie8tcUUKX0OZNoLyD7yJOZOspy6gOOXWc2Tj+TD3uPV744NgygBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T21:02:40.294483Z"},"content_sha256":"81d11357161cc74f2e09101203c596eceb91d29134142f2032bad2856c2e2173","schema_version":"1.0","event_id":"sha256:81d11357161cc74f2e09101203c596eceb91d29134142f2032bad2856c2e2173"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:3ZM4MTRG6M2L7JUIZFCS4C6A2R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lighting up topological insulators: large surface photocurrents from magnetic superlattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Aaron Farrell, Eran Lustig, Felix von Oppen, Gil Refael, Netanel H. Lindner","submitted_at":"2014-02-28T21:01:12Z","abstract_excerpt":"The gapless surface states of topological insulators (TI) can potentially be used to detect and harvest low-frequency infrared light. Nonetheless, it was shown that significant surface photocurrents due to light with frequency below the bulk gap are rather hard to produce. Here we demonstrate that a periodic magnetic pattern added to the surface dramatically enhances surface photocurrents in TI's. Moreover, the sensitivity of this set-up to the wavelength of the incident light can be optimized by tuning the geometry of the magnetic pattern. The ability to produce substantial photocurrents on T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.0010","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":""},"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":"2026-05-18T01:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hgZTQcmj3vXSNwAnQSfY0E87u30YzsUQYpvi8eKAIVAesjGI69WRMPN+KwL+abEmOL+Mha2Fi35pd0TRVRQQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T21:02:40.295090Z"},"content_sha256":"7802c55ef14ce10e56e96e32a0b0378602f2553fd5c3457d42a90ad6cdc99ed6","schema_version":"1.0","event_id":"sha256:7802c55ef14ce10e56e96e32a0b0378602f2553fd5c3457d42a90ad6cdc99ed6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/bundle.json","state_url":"https://pith.science/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/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":"2026-05-24T21:02:40Z","links":{"resolver":"https://pith.science/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R","bundle":"https://pith.science/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/bundle.json","state":"https://pith.science/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3ZM4MTRG6M2L7JUIZFCS4C6A2R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3ZM4MTRG6M2L7JUIZFCS4C6A2R","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":"7378d6a2299dee112ae073ca4e914b8a56ddd63edfe5ba7cc1e48f83b6c83168","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-02-28T21:01:12Z","title_canon_sha256":"08ed61b779705fbb48bfb4ec5a64327f5af39d0036ee64418f5fb26331424dae"},"schema_version":"1.0","source":{"id":"1403.0010","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.0010","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"1403.0010v2","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.0010","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"3ZM4MTRG6M2L","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3ZM4MTRG6M2L7JUI","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3ZM4MTRG","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:7802c55ef14ce10e56e96e32a0b0378602f2553fd5c3457d42a90ad6cdc99ed6","target":"graph","created_at":"2026-05-18T01:23:58Z","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":"The gapless surface states of topological insulators (TI) can potentially be used to detect and harvest low-frequency infrared light. Nonetheless, it was shown that significant surface photocurrents due to light with frequency below the bulk gap are rather hard to produce. Here we demonstrate that a periodic magnetic pattern added to the surface dramatically enhances surface photocurrents in TI's. Moreover, the sensitivity of this set-up to the wavelength of the incident light can be optimized by tuning the geometry of the magnetic pattern. The ability to produce substantial photocurrents on T","authors_text":"Aaron Farrell, Eran Lustig, Felix von Oppen, Gil Refael, Netanel H. Lindner","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-02-28T21:01:12Z","title":"Lighting up topological insulators: large surface photocurrents from magnetic superlattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.0010","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":"sha256:81d11357161cc74f2e09101203c596eceb91d29134142f2032bad2856c2e2173","target":"record","created_at":"2026-05-18T01:23:58Z","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":"7378d6a2299dee112ae073ca4e914b8a56ddd63edfe5ba7cc1e48f83b6c83168","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-02-28T21:01:12Z","title_canon_sha256":"08ed61b779705fbb48bfb4ec5a64327f5af39d0036ee64418f5fb26331424dae"},"schema_version":"1.0","source":{"id":"1403.0010","kind":"arxiv","version":2}},"canonical_sha256":"de59c64e26f334bfa688c9452e0bc0d477de6fc894f090310fe339ce65edaf2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de59c64e26f334bfa688c9452e0bc0d477de6fc894f090310fe339ce65edaf2b","first_computed_at":"2026-05-18T01:23:58.932766Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:58.932766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C9inh7HgEK2wOONLN+HOtf0IpuPUyN9d0ZJHimLEsU1ezVV6mLWWfcnGrgQk9mNB+RSvdZijoE8B25ZiMnotDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:58.933421Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.0010","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81d11357161cc74f2e09101203c596eceb91d29134142f2032bad2856c2e2173","sha256:7802c55ef14ce10e56e96e32a0b0378602f2553fd5c3457d42a90ad6cdc99ed6"],"state_sha256":"271a4052e05652f96fea31d52bbf78679f9ba3a227dd3cf27037cc4d1fc7919d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NesmeEXTM7RARBAOLjWgLsx+4QlJud805ueSpLzuf1201TNyqNp7/zbU8o6MLbVxtOqduxi7a88Jkq1o3Ql0Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T21:02:40.298276Z","bundle_sha256":"7592ca19984fab94aaa32cc14959439a1be0067d1c32eb9ba515675369149a15"}}