{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:YQEKQCEU7W3S6KTCM4FFM5ODCU","short_pith_number":"pith:YQEKQCEU","canonical_record":{"source":{"id":"1210.1997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-06T20:21:14Z","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.supr-con"],"title_canon_sha256":"d4b1c8313c54be404b1e9274b2bc9594a252be7ca8da8a8b2bc1d52a5e806d88","abstract_canon_sha256":"45935eea415d44f808c42622ff144699006786ff2745f5ac78a060f375754d84"},"schema_version":"1.0"},"canonical_sha256":"c408a80894fdb72f2a62670a5675c3151ec15a44616bc5b80661ee62a5d1f5a8","source":{"kind":"arxiv","id":"1210.1997","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1997","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1997v2","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1997","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"pith_short_12","alias_value":"YQEKQCEU7W3S","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"YQEKQCEU7W3S6KTC","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"YQEKQCEU","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:YQEKQCEU7W3S6KTCM4FFM5ODCU","target":"record","payload":{"canonical_record":{"source":{"id":"1210.1997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-06T20:21:14Z","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.supr-con"],"title_canon_sha256":"d4b1c8313c54be404b1e9274b2bc9594a252be7ca8da8a8b2bc1d52a5e806d88","abstract_canon_sha256":"45935eea415d44f808c42622ff144699006786ff2745f5ac78a060f375754d84"},"schema_version":"1.0"},"canonical_sha256":"c408a80894fdb72f2a62670a5675c3151ec15a44616bc5b80661ee62a5d1f5a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:23:03.633992Z","signature_b64":"uX/ygIIMbd1MDOIkxXgk9gzOrPx3P0nISBn47sF+hhvPN0wNOmvJfwhNC/mhRaA6uCI6STCOk+Kr7x1sSPgmCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c408a80894fdb72f2a62670a5675c3151ec15a44616bc5b80661ee62a5d1f5a8","last_reissued_at":"2026-05-18T03:23:03.633587Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:23:03.633587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.1997","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":"2026-05-18T03:23:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"11+Kx8up5alHmY6XEZG6tn1cuAXEOUJcc1oOe0SdSJkIIVVF2GwUFNzxGo8PSvp8ziz/fK1Xn/ZTE0q5ucI3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:00:41.592045Z"},"content_sha256":"1ecdf513071e0543eec2829c28e14116c641545f9ab4da9dc6900b5c79565dff","schema_version":"1.0","event_id":"sha256:1ecdf513071e0543eec2829c28e14116c641545f9ab4da9dc6900b5c79565dff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:YQEKQCEU7W3S6KTCM4FFM5ODCU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermionic and bosonic ac conductivities at strong disorder","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas","cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"K. B. Efetov, O. M. Yevtushenko, S. V. Syzranov","submitted_at":"2012-10-06T20:21:14Z","abstract_excerpt":"We study the ac conduction in a system of fermions or bosons strongly localised in a disordered array of sites with short-range interactions at frequencies larger than the intersite tunnelling but smaller than the characteristic fluctuation of the on-site energy. While the main contribution $\\sigma_0(\\omega)$ to the conductivity comes from local dipole-type excitations on close pairs of sites, coherent processes on three or more sites lead to an interference correction $\\sigma_1(\\omega)$, which depends on the statistics of the charge carriers and can be suppressed by magnetic field. For bosons"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1997","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":"2026-05-18T03:23:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w1Y/9EHkttUH90bVTJpmxSAFjYhlc9r+O5tqj08HLQyHcaEbgyk1FDiarDmKsE78FSRh/kyAk8LWeZkw9AHMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:00:41.592768Z"},"content_sha256":"ae3fcbdf8ddc1e3150f0d97b69990426f5de28f4fb244c0993ece28c1af72e58","schema_version":"1.0","event_id":"sha256:ae3fcbdf8ddc1e3150f0d97b69990426f5de28f4fb244c0993ece28c1af72e58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/bundle.json","state_url":"https://pith.science/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/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":"2026-05-26T06:00:41Z","links":{"resolver":"https://pith.science/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU","bundle":"https://pith.science/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/bundle.json","state":"https://pith.science/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQEKQCEU7W3S6KTCM4FFM5ODCU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:YQEKQCEU7W3S6KTCM4FFM5ODCU","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":"45935eea415d44f808c42622ff144699006786ff2745f5ac78a060f375754d84","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-06T20:21:14Z","title_canon_sha256":"d4b1c8313c54be404b1e9274b2bc9594a252be7ca8da8a8b2bc1d52a5e806d88"},"schema_version":"1.0","source":{"id":"1210.1997","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1997","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1997v2","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1997","created_at":"2026-05-18T03:23:03Z"},{"alias_kind":"pith_short_12","alias_value":"YQEKQCEU7W3S","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"YQEKQCEU7W3S6KTC","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"YQEKQCEU","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:ae3fcbdf8ddc1e3150f0d97b69990426f5de28f4fb244c0993ece28c1af72e58","target":"graph","created_at":"2026-05-18T03:23:03Z","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":"We study the ac conduction in a system of fermions or bosons strongly localised in a disordered array of sites with short-range interactions at frequencies larger than the intersite tunnelling but smaller than the characteristic fluctuation of the on-site energy. While the main contribution $\\sigma_0(\\omega)$ to the conductivity comes from local dipole-type excitations on close pairs of sites, coherent processes on three or more sites lead to an interference correction $\\sigma_1(\\omega)$, which depends on the statistics of the charge carriers and can be suppressed by magnetic field. For bosons","authors_text":"K. B. Efetov, O. M. Yevtushenko, S. V. Syzranov","cross_cats":["cond-mat.quant-gas","cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-06T20:21:14Z","title":"Fermionic and bosonic ac conductivities at strong disorder"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1997","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":"sha256:1ecdf513071e0543eec2829c28e14116c641545f9ab4da9dc6900b5c79565dff","target":"record","created_at":"2026-05-18T03:23:03Z","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":"45935eea415d44f808c42622ff144699006786ff2745f5ac78a060f375754d84","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-06T20:21:14Z","title_canon_sha256":"d4b1c8313c54be404b1e9274b2bc9594a252be7ca8da8a8b2bc1d52a5e806d88"},"schema_version":"1.0","source":{"id":"1210.1997","kind":"arxiv","version":2}},"canonical_sha256":"c408a80894fdb72f2a62670a5675c3151ec15a44616bc5b80661ee62a5d1f5a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c408a80894fdb72f2a62670a5675c3151ec15a44616bc5b80661ee62a5d1f5a8","first_computed_at":"2026-05-18T03:23:03.633587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:03.633587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uX/ygIIMbd1MDOIkxXgk9gzOrPx3P0nISBn47sF+hhvPN0wNOmvJfwhNC/mhRaA6uCI6STCOk+Kr7x1sSPgmCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:03.633992Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.1997","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ecdf513071e0543eec2829c28e14116c641545f9ab4da9dc6900b5c79565dff","sha256:ae3fcbdf8ddc1e3150f0d97b69990426f5de28f4fb244c0993ece28c1af72e58"],"state_sha256":"e459e118fe09290ea41de9ebafe88d8eadaee225c79cc3e0bfa0dc4728d2c6af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oBGUOKiDW/HC9n08fdpnhqdpUtgX3NatzttYQNgEzB+xGPyYWiYexL8fpn1lBgNOutipYWwctdZvOclfUy+iDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:00:41.597341Z","bundle_sha256":"4bb1123f3a1352c042caffd22cdef11aab7fc6aaee70c3edd1d6070f46ef7646"}}