{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PO4B2YEZBUFSX4DTSNPVY6ULDG","short_pith_number":"pith:PO4B2YEZ","canonical_record":{"source":{"id":"1207.5641","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-07-24T10:02:34Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"562ee96f45b5b50d61f4987a5205aced46d40122e84a81ca1e60809e6df84f77","abstract_canon_sha256":"96d1ddd9f7c129e1b93b6c033efe4a3341ecd091826faff10925fd19aecf18f8"},"schema_version":"1.0"},"canonical_sha256":"7bb81d60990d0b2bf073935f5c7a8b19ad51088f9b573cd94a6956577f9e2791","source":{"kind":"arxiv","id":"1207.5641","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.5641","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"arxiv_version","alias_value":"1207.5641v2","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.5641","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"pith_short_12","alias_value":"PO4B2YEZBUFS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PO4B2YEZBUFSX4DT","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PO4B2YEZ","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PO4B2YEZBUFSX4DTSNPVY6ULDG","target":"record","payload":{"canonical_record":{"source":{"id":"1207.5641","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-07-24T10:02:34Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"562ee96f45b5b50d61f4987a5205aced46d40122e84a81ca1e60809e6df84f77","abstract_canon_sha256":"96d1ddd9f7c129e1b93b6c033efe4a3341ecd091826faff10925fd19aecf18f8"},"schema_version":"1.0"},"canonical_sha256":"7bb81d60990d0b2bf073935f5c7a8b19ad51088f9b573cd94a6956577f9e2791","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:36.701640Z","signature_b64":"06fuJwT14f6PaWB5Vz16uzU87B3y97nH0xe3rpYrY930cHxBfE9NINJD6T1p/C4AImpf0evA5Atc1EGxURx3BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bb81d60990d0b2bf073935f5c7a8b19ad51088f9b573cd94a6956577f9e2791","last_reissued_at":"2026-05-18T03:36:36.700768Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:36.700768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.5641","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":"2026-05-18T03:36:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B8dJopGHZHPrnJqxLjbFtGBxXwe0fYjW96KD0K0vXU+oh7neE5i+LnJEsefAwOHoloTaabBlirKnx89Uob2ECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:07:44.374079Z"},"content_sha256":"32b28f16ec87d06e2d73f9eb00c6aae9605e0a2b3e6244c117d023d2b83e2dc2","schema_version":"1.0","event_id":"sha256:32b28f16ec87d06e2d73f9eb00c6aae9605e0a2b3e6244c117d023d2b83e2dc2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PO4B2YEZBUFSX4DTSNPVY6ULDG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Steady-state spectra, current and stability diagram of a quantum dot: a non-equilibrium Variational Cluster Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"Christoph Heil, Enrico Arrigoni, Hans Gerd Evertz, Martin Ganahl, Martin Nuss, Michael Knap, Wolfgang von der Linden","submitted_at":"2012-07-24T10:02:34Z","abstract_excerpt":"We calculate steady-state properties of a strongly correlated quantum dot under voltage bias by means of non-equilibrium Cluster Perturbation Theory and the non-equilibrium Variational Cluster Approach, respectively. Results for the steady-state current are benchmarked against data from accurate Matrix Product State based time evolution. We show that for low to medium interaction strength, non-equilibrium Cluster Perturbation Theory already yields good results, while for higher interaction strength the self-consistent feedback of the non-equilibrium Variational Cluster Approach significantly e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5641","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":"2026-05-18T03:36:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kXC0PQtAzPrJXF7LYWE0EV8/5W4AlP8MrHCtpTVV2vYjzeB//nORqSdnBJgkVHaSZk99s0ZpCh8iwYQLYF+nCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:07:44.374753Z"},"content_sha256":"2a0215130521fba8e8aa8d3ff8d2cb0a3386a43d6ef3bfbd342e6ed90c39f23d","schema_version":"1.0","event_id":"sha256:2a0215130521fba8e8aa8d3ff8d2cb0a3386a43d6ef3bfbd342e6ed90c39f23d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/bundle.json","state_url":"https://pith.science/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/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":"2026-05-31T21:07:44Z","links":{"resolver":"https://pith.science/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG","bundle":"https://pith.science/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/bundle.json","state":"https://pith.science/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PO4B2YEZBUFSX4DTSNPVY6ULDG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PO4B2YEZBUFSX4DTSNPVY6ULDG","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":"96d1ddd9f7c129e1b93b6c033efe4a3341ecd091826faff10925fd19aecf18f8","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-07-24T10:02:34Z","title_canon_sha256":"562ee96f45b5b50d61f4987a5205aced46d40122e84a81ca1e60809e6df84f77"},"schema_version":"1.0","source":{"id":"1207.5641","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.5641","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"arxiv_version","alias_value":"1207.5641v2","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.5641","created_at":"2026-05-18T03:36:36Z"},{"alias_kind":"pith_short_12","alias_value":"PO4B2YEZBUFS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PO4B2YEZBUFSX4DT","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PO4B2YEZ","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:2a0215130521fba8e8aa8d3ff8d2cb0a3386a43d6ef3bfbd342e6ed90c39f23d","target":"graph","created_at":"2026-05-18T03:36:36Z","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 calculate steady-state properties of a strongly correlated quantum dot under voltage bias by means of non-equilibrium Cluster Perturbation Theory and the non-equilibrium Variational Cluster Approach, respectively. Results for the steady-state current are benchmarked against data from accurate Matrix Product State based time evolution. We show that for low to medium interaction strength, non-equilibrium Cluster Perturbation Theory already yields good results, while for higher interaction strength the self-consistent feedback of the non-equilibrium Variational Cluster Approach significantly e","authors_text":"Christoph Heil, Enrico Arrigoni, Hans Gerd Evertz, Martin Ganahl, Martin Nuss, Michael Knap, Wolfgang von der Linden","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-07-24T10:02:34Z","title":"Steady-state spectra, current and stability diagram of a quantum dot: a non-equilibrium Variational Cluster Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5641","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":"sha256:32b28f16ec87d06e2d73f9eb00c6aae9605e0a2b3e6244c117d023d2b83e2dc2","target":"record","created_at":"2026-05-18T03:36:36Z","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":"96d1ddd9f7c129e1b93b6c033efe4a3341ecd091826faff10925fd19aecf18f8","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-07-24T10:02:34Z","title_canon_sha256":"562ee96f45b5b50d61f4987a5205aced46d40122e84a81ca1e60809e6df84f77"},"schema_version":"1.0","source":{"id":"1207.5641","kind":"arxiv","version":2}},"canonical_sha256":"7bb81d60990d0b2bf073935f5c7a8b19ad51088f9b573cd94a6956577f9e2791","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bb81d60990d0b2bf073935f5c7a8b19ad51088f9b573cd94a6956577f9e2791","first_computed_at":"2026-05-18T03:36:36.700768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:36.700768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"06fuJwT14f6PaWB5Vz16uzU87B3y97nH0xe3rpYrY930cHxBfE9NINJD6T1p/C4AImpf0evA5Atc1EGxURx3BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:36.701640Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.5641","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32b28f16ec87d06e2d73f9eb00c6aae9605e0a2b3e6244c117d023d2b83e2dc2","sha256:2a0215130521fba8e8aa8d3ff8d2cb0a3386a43d6ef3bfbd342e6ed90c39f23d"],"state_sha256":"c07b3bc414b4dda3a03fc9489288f95d7d9b04b23a651d27a4739578735acbf7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hz1C2+Ck9e7HBzZbG8Qk1L4vrX0NOxBBYfZhroZ9sw2EMbO7fjkUea+hplYAEbRjRIt0Ww0bg1V0W3fAns0gCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:07:44.382613Z","bundle_sha256":"0efe274478a220d038532ca379ed9d5879fd3c3e2c92245ded851e2776135d1f"}}