{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2VU6IFKYDPSECE3QCG3PXFGORH","short_pith_number":"pith:2VU6IFKY","canonical_record":{"source":{"id":"1212.1894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-09T15:09:43Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"30ff211452b05ab6e0b0f5067f7acf8653893d3f8aec62894483759154fb30ad","abstract_canon_sha256":"fa3551dc437875f5007d05542acf367ad7b670947b8caa17c6187082672e2ed0"},"schema_version":"1.0"},"canonical_sha256":"d569e415581be441137011b6fb94ce89f17e310efd5e49a9dd27d3a16fd79c58","source":{"kind":"arxiv","id":"1212.1894","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.1894","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"arxiv_version","alias_value":"1212.1894v1","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.1894","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"pith_short_12","alias_value":"2VU6IFKYDPSE","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2VU6IFKYDPSECE3Q","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2VU6IFKY","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2VU6IFKYDPSECE3QCG3PXFGORH","target":"record","payload":{"canonical_record":{"source":{"id":"1212.1894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-09T15:09:43Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"30ff211452b05ab6e0b0f5067f7acf8653893d3f8aec62894483759154fb30ad","abstract_canon_sha256":"fa3551dc437875f5007d05542acf367ad7b670947b8caa17c6187082672e2ed0"},"schema_version":"1.0"},"canonical_sha256":"d569e415581be441137011b6fb94ce89f17e310efd5e49a9dd27d3a16fd79c58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:38:32.556917Z","signature_b64":"mpvRnPMQiFVQKdgPw1cXu4oy8vybABrUlJjpR0NNybbsTBe2hBsRNunNPh7W7Azg9pyoVpBjt/M6D8MX8LjkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d569e415581be441137011b6fb94ce89f17e310efd5e49a9dd27d3a16fd79c58","last_reissued_at":"2026-05-18T03:38:32.556214Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:38:32.556214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.1894","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:38:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EWGuWE4DAcxY0T/5BvIR8PNOdcjjGz/g4vZJrYauHXSNVHBbfKTuG8mQfnC0AJjsq5k0K16201wWJIQmQKc7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:34:36.713339Z"},"content_sha256":"28c3901f4ad9e5b33cf40e53f2dae63c1f597cb909ae41183382123b8907405f","schema_version":"1.0","event_id":"sha256:28c3901f4ad9e5b33cf40e53f2dae63c1f597cb909ae41183382123b8907405f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2VU6IFKYDPSECE3QCG3PXFGORH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface plasmon for graphene in the Dirac equation model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"M. Bordag","submitted_at":"2012-12-09T15:09:43Z","abstract_excerpt":"We consider single-layer plane graphene with electronic excitations described by the Dirac equation. Using a known representation of the polarization tensor in terms of the spinor loop we show the existence of surface modes, i.e., of undamped in time excitations of the \\elm field, propagating along the graphene. These show up in the TE polarization and exist at zero temperature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.1894","kind":"arxiv","version":1},"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":"2026-05-18T03:38:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hymUKzOfFjUWcynSZ8ijgITHNFgKkj5uIb/clCjEA0an6RQ8OmgPd+xRrVwS2jfFWYdluQFH6DgB1pwsWZcyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:34:36.713967Z"},"content_sha256":"b0362ad859e23bc8b6e716906b1adc80532e10fd23ea857dedd596c977369326","schema_version":"1.0","event_id":"sha256:b0362ad859e23bc8b6e716906b1adc80532e10fd23ea857dedd596c977369326"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2VU6IFKYDPSECE3QCG3PXFGORH/bundle.json","state_url":"https://pith.science/pith/2VU6IFKYDPSECE3QCG3PXFGORH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2VU6IFKYDPSECE3QCG3PXFGORH/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":"2026-05-25T16:34:36Z","links":{"resolver":"https://pith.science/pith/2VU6IFKYDPSECE3QCG3PXFGORH","bundle":"https://pith.science/pith/2VU6IFKYDPSECE3QCG3PXFGORH/bundle.json","state":"https://pith.science/pith/2VU6IFKYDPSECE3QCG3PXFGORH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2VU6IFKYDPSECE3QCG3PXFGORH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2VU6IFKYDPSECE3QCG3PXFGORH","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":"fa3551dc437875f5007d05542acf367ad7b670947b8caa17c6187082672e2ed0","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-09T15:09:43Z","title_canon_sha256":"30ff211452b05ab6e0b0f5067f7acf8653893d3f8aec62894483759154fb30ad"},"schema_version":"1.0","source":{"id":"1212.1894","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.1894","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"arxiv_version","alias_value":"1212.1894v1","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.1894","created_at":"2026-05-18T03:38:32Z"},{"alias_kind":"pith_short_12","alias_value":"2VU6IFKYDPSE","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2VU6IFKYDPSECE3Q","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2VU6IFKY","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:b0362ad859e23bc8b6e716906b1adc80532e10fd23ea857dedd596c977369326","target":"graph","created_at":"2026-05-18T03:38:32Z","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 consider single-layer plane graphene with electronic excitations described by the Dirac equation. Using a known representation of the polarization tensor in terms of the spinor loop we show the existence of surface modes, i.e., of undamped in time excitations of the \\elm field, propagating along the graphene. These show up in the TE polarization and exist at zero temperature.","authors_text":"M. Bordag","cross_cats":["hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-09T15:09:43Z","title":"Surface plasmon for graphene in the Dirac equation model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.1894","kind":"arxiv","version":1},"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":"sha256:28c3901f4ad9e5b33cf40e53f2dae63c1f597cb909ae41183382123b8907405f","target":"record","created_at":"2026-05-18T03:38:32Z","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":"fa3551dc437875f5007d05542acf367ad7b670947b8caa17c6187082672e2ed0","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-09T15:09:43Z","title_canon_sha256":"30ff211452b05ab6e0b0f5067f7acf8653893d3f8aec62894483759154fb30ad"},"schema_version":"1.0","source":{"id":"1212.1894","kind":"arxiv","version":1}},"canonical_sha256":"d569e415581be441137011b6fb94ce89f17e310efd5e49a9dd27d3a16fd79c58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d569e415581be441137011b6fb94ce89f17e310efd5e49a9dd27d3a16fd79c58","first_computed_at":"2026-05-18T03:38:32.556214Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:38:32.556214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mpvRnPMQiFVQKdgPw1cXu4oy8vybABrUlJjpR0NNybbsTBe2hBsRNunNPh7W7Azg9pyoVpBjt/M6D8MX8LjkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:38:32.556917Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.1894","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28c3901f4ad9e5b33cf40e53f2dae63c1f597cb909ae41183382123b8907405f","sha256:b0362ad859e23bc8b6e716906b1adc80532e10fd23ea857dedd596c977369326"],"state_sha256":"a6581c7c6354a0282a7f02c982efa7a39facbb3ffe2a4104e04fe56cb3fc9e7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zkQ6wRHCDQlSzQHiH7ogYAyvbG9CwiHybPotAtYrGE58ksK2JqyvBuDdRIAqR5O15jfa6nbfACtqXam8g3wjBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:34:36.717389Z","bundle_sha256":"8b14f923904e507ce4e887e5746f4098bc112b3e8fe79c22bcf5fb0035788adb"}}