{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KWDFNE7Q6AD7WMJEPXRMADB4SA","short_pith_number":"pith:KWDFNE7Q","canonical_record":{"source":{"id":"1311.3277","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-11-13T20:12:35Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"91b2a5eafff71d542ff3463dd09d6a58b5dce52587b9806902fcf7b556311f87","abstract_canon_sha256":"0dc4c62e521de4b5eaaa8b646be240a34dae86d8ecb7c086d2a10609ba075729"},"schema_version":"1.0"},"canonical_sha256":"55865693f0f007fb31247de2c00c3c903786a3a0ad605f42006f66273aa5d8c5","source":{"kind":"arxiv","id":"1311.3277","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.3277","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.3277v3","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.3277","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"KWDFNE7Q6AD7","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KWDFNE7Q6AD7WMJE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KWDFNE7Q","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KWDFNE7Q6AD7WMJEPXRMADB4SA","target":"record","payload":{"canonical_record":{"source":{"id":"1311.3277","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-11-13T20:12:35Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"91b2a5eafff71d542ff3463dd09d6a58b5dce52587b9806902fcf7b556311f87","abstract_canon_sha256":"0dc4c62e521de4b5eaaa8b646be240a34dae86d8ecb7c086d2a10609ba075729"},"schema_version":"1.0"},"canonical_sha256":"55865693f0f007fb31247de2c00c3c903786a3a0ad605f42006f66273aa5d8c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:38.981700Z","signature_b64":"E6ljmHQs5G0Wv/O5PpuMZ0e9ycSRhCtg3HGJ7+oCc63ONKj9sviDFdyRhjdDEvadSRMte85bFBd7Y0iWtJB7CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55865693f0f007fb31247de2c00c3c903786a3a0ad605f42006f66273aa5d8c5","last_reissued_at":"2026-05-18T02:32:38.981325Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:38.981325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.3277","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"edUUU5JWkwkqHQG7SOXsjKo9j0nR3v090qtcuUyz2zaRaxecSDHnPoVFdEDFZHEJ9iqrJxaa3ut/wSo2hqpABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:17:32.514508Z"},"content_sha256":"90fb1c62e9aa7b0e4ac91e08a20704a29a50a2da81084ed600406d50deebb1bc","schema_version":"1.0","event_id":"sha256:90fb1c62e9aa7b0e4ac91e08a20704a29a50a2da81084ed600406d50deebb1bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KWDFNE7Q6AD7WMJEPXRMADB4SA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Is there a metamaterial route to high temperature superconductivity?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"physics.optics","authors_text":"Igor I. Smolyaninov, Vera N. Smolyaninova","submitted_at":"2013-11-13T20:12:35Z","abstract_excerpt":"Superconducting properties of a material, such as electron-electron interactions and the critical temperature of superconducting transition can be expressed via the effective dielectric response function of the material. Such a description is valid on the spatial scales below the superconducting coherence length (the size of the Cooper pair), which equals ~100 nm in a typical BCS superconductor. Searching for natural materials exhibiting larger electron-electron interactions constitutes a traditional approach to high temperature superconductivity research. Here we point out that recently devel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.3277","kind":"arxiv","version":3},"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":"2026-05-18T02:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DYrRrmOwIfEiGa1Ms16BaTZtRymnzTkoE04tHG6IgiwwBp/cZbSSCLLM0ubdJ7+aQw/smT6rUjo4y5hAgF25Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:17:32.514871Z"},"content_sha256":"05569036b9062b33da15b5f64c2ff44a0bd2546f01af0c9cd47e7f47927a7f7e","schema_version":"1.0","event_id":"sha256:05569036b9062b33da15b5f64c2ff44a0bd2546f01af0c9cd47e7f47927a7f7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/bundle.json","state_url":"https://pith.science/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/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":"2026-05-30T07:17:32Z","links":{"resolver":"https://pith.science/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA","bundle":"https://pith.science/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/bundle.json","state":"https://pith.science/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KWDFNE7Q6AD7WMJEPXRMADB4SA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KWDFNE7Q6AD7WMJEPXRMADB4SA","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":"0dc4c62e521de4b5eaaa8b646be240a34dae86d8ecb7c086d2a10609ba075729","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-11-13T20:12:35Z","title_canon_sha256":"91b2a5eafff71d542ff3463dd09d6a58b5dce52587b9806902fcf7b556311f87"},"schema_version":"1.0","source":{"id":"1311.3277","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.3277","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.3277v3","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.3277","created_at":"2026-05-18T02:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"KWDFNE7Q6AD7","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KWDFNE7Q6AD7WMJE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KWDFNE7Q","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:05569036b9062b33da15b5f64c2ff44a0bd2546f01af0c9cd47e7f47927a7f7e","target":"graph","created_at":"2026-05-18T02:32:38Z","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":"Superconducting properties of a material, such as electron-electron interactions and the critical temperature of superconducting transition can be expressed via the effective dielectric response function of the material. Such a description is valid on the spatial scales below the superconducting coherence length (the size of the Cooper pair), which equals ~100 nm in a typical BCS superconductor. Searching for natural materials exhibiting larger electron-electron interactions constitutes a traditional approach to high temperature superconductivity research. Here we point out that recently devel","authors_text":"Igor I. Smolyaninov, Vera N. Smolyaninova","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-11-13T20:12:35Z","title":"Is there a metamaterial route to high temperature superconductivity?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.3277","kind":"arxiv","version":3},"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":"sha256:90fb1c62e9aa7b0e4ac91e08a20704a29a50a2da81084ed600406d50deebb1bc","target":"record","created_at":"2026-05-18T02:32:38Z","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":"0dc4c62e521de4b5eaaa8b646be240a34dae86d8ecb7c086d2a10609ba075729","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-11-13T20:12:35Z","title_canon_sha256":"91b2a5eafff71d542ff3463dd09d6a58b5dce52587b9806902fcf7b556311f87"},"schema_version":"1.0","source":{"id":"1311.3277","kind":"arxiv","version":3}},"canonical_sha256":"55865693f0f007fb31247de2c00c3c903786a3a0ad605f42006f66273aa5d8c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55865693f0f007fb31247de2c00c3c903786a3a0ad605f42006f66273aa5d8c5","first_computed_at":"2026-05-18T02:32:38.981325Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:38.981325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E6ljmHQs5G0Wv/O5PpuMZ0e9ycSRhCtg3HGJ7+oCc63ONKj9sviDFdyRhjdDEvadSRMte85bFBd7Y0iWtJB7CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:38.981700Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.3277","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90fb1c62e9aa7b0e4ac91e08a20704a29a50a2da81084ed600406d50deebb1bc","sha256:05569036b9062b33da15b5f64c2ff44a0bd2546f01af0c9cd47e7f47927a7f7e"],"state_sha256":"0607c334c5696a2bba8612499de556cb5d39dcdd6e13a4c2bcd758c138e27aea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3AV+HA0HpNzZiqP/iOwM6Gn/WNMxLRMKNoH/pV+PHRmgg2N8oEInLzNMi7eI0EIZN1psuksTYaTbIHdDpB5EBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:17:32.518420Z","bundle_sha256":"303dd44484fc6cc7b533e64bc0d2fb1727e8043a08631743e6a1de404d346488"}}