{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:BC4EVMAHADZ3KDCP34WDXLHJQE","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":"ad03239d3279379d78bbd13ebe4f4c61d5005e8549b8b404072d9db2dc0d7d6e","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-04-28T00:26:02Z","title_canon_sha256":"f97ce3949ab1f7064dadebb846c2e73292d8106334ddf0f08b05a7c6b9477ba7"},"schema_version":"1.0","source":{"id":"2204.13235","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.13235","created_at":"2026-07-05T04:23:08Z"},{"alias_kind":"arxiv_version","alias_value":"2204.13235v2","created_at":"2026-07-05T04:23:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.13235","created_at":"2026-07-05T04:23:08Z"},{"alias_kind":"pith_short_12","alias_value":"BC4EVMAHADZ3","created_at":"2026-07-05T04:23:08Z"},{"alias_kind":"pith_short_16","alias_value":"BC4EVMAHADZ3KDCP","created_at":"2026-07-05T04:23:08Z"},{"alias_kind":"pith_short_8","alias_value":"BC4EVMAH","created_at":"2026-07-05T04:23:08Z"}],"graph_snapshots":[{"event_id":"sha256:55779c8358dfd6ce24abe1c81c4a63b1975c556719c954229042fc5669c1aa7c","target":"graph","created_at":"2026-07-05T04:23:08Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2204.13235/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a thermoelectric device that can produce a thermal gradient even in a uniform-temperature environment. We introduced a metamaterial absorber (MA), which comprised a transparent calcium fluoride layer sandwiched between a silver mirror layer and silver microdisk arrays, at one end of a thermoelectric device made of bismuth antimony telluride. The heating efficiencies of the MA and opposite electrodes of the device were unbalanced; consequently, the Seebeck effect was induced, resulting in electricity generation. We fabricated the MA on a copper electrode loaded on a thermoelectric de","authors_text":"Ryosuke Nakayama, Shohei Katsumata, Sohei Saito, Takuo Tanaka, Takuya Asakura, Toshinari Odaka, Wakana Kubo","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-04-28T00:26:02Z","title":"Metamaterial Thermoelectric Conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.13235","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:c262f66c351bb0983e62fff961590c0b5eec0461f8daf1c1bb686fa034c816ff","target":"record","created_at":"2026-07-05T04:23:08Z","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":"ad03239d3279379d78bbd13ebe4f4c61d5005e8549b8b404072d9db2dc0d7d6e","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-04-28T00:26:02Z","title_canon_sha256":"f97ce3949ab1f7064dadebb846c2e73292d8106334ddf0f08b05a7c6b9477ba7"},"schema_version":"1.0","source":{"id":"2204.13235","kind":"arxiv","version":2}},"canonical_sha256":"08b84ab00700f3b50c4fdf2c3bace98118dc89a5353b46eb6b09d1e7158c8a6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08b84ab00700f3b50c4fdf2c3bace98118dc89a5353b46eb6b09d1e7158c8a6e","first_computed_at":"2026-07-05T04:23:08.475791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:23:08.475791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WGrSL2qFjOZPs/puTz6tkucY9XH+DnXCMqryGIoiq9jE1c1qxdttfGqOxocYscAVG1U5xC05GWezt2at4v3GBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:23:08.476230Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.13235","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c262f66c351bb0983e62fff961590c0b5eec0461f8daf1c1bb686fa034c816ff","sha256:55779c8358dfd6ce24abe1c81c4a63b1975c556719c954229042fc5669c1aa7c"],"state_sha256":"2459510d4b110d4a5cadc4cc24d9cc4abe67ffe16841e2f776fba8616a4068c4"}