{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:WSXFFE3WHK2WCEZOUREANITBSJ","short_pith_number":"pith:WSXFFE3W","canonical_record":{"source":{"id":"1002.3481","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-02-18T10:54:54Z","cross_cats_sorted":[],"title_canon_sha256":"58b3ca1a66163c5c819586bf2afbee54deb7ae97c974f7482396f285efe22db6","abstract_canon_sha256":"4c22fb6fbf671c7e4cacf32df4bde255368cd3124bff2e04b33a6f40e3977a88"},"schema_version":"1.0"},"canonical_sha256":"b4ae5293763ab561132ea44806a261926f7a3f79dfa1fae10d204b47f28321d7","source":{"kind":"arxiv","id":"1002.3481","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.3481","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"arxiv_version","alias_value":"1002.3481v2","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.3481","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"pith_short_12","alias_value":"WSXFFE3WHK2W","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"WSXFFE3WHK2WCEZO","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"WSXFFE3W","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:WSXFFE3WHK2WCEZOUREANITBSJ","target":"record","payload":{"canonical_record":{"source":{"id":"1002.3481","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-02-18T10:54:54Z","cross_cats_sorted":[],"title_canon_sha256":"58b3ca1a66163c5c819586bf2afbee54deb7ae97c974f7482396f285efe22db6","abstract_canon_sha256":"4c22fb6fbf671c7e4cacf32df4bde255368cd3124bff2e04b33a6f40e3977a88"},"schema_version":"1.0"},"canonical_sha256":"b4ae5293763ab561132ea44806a261926f7a3f79dfa1fae10d204b47f28321d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:31:51.175195Z","signature_b64":"ML5KvOMmmwdAYkV/JViKMR0HBLTm0y62Vxlf0bYDUWWSxOW4WvK4lTZqhDFNbHOSTqAXNw1E8s62i7zFoWViBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4ae5293763ab561132ea44806a261926f7a3f79dfa1fae10d204b47f28321d7","last_reissued_at":"2026-05-18T04:31:51.174765Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:31:51.174765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.3481","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":"2026-05-18T04:31:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hr31DghSH99m6IT2TxhbBceuvC7k8AcjKwIaHE3qdrA8ufPxLsOcP4Ay78Jm3TWoBmOkVWZLlAecZcgjZjiPBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T11:55:36.174706Z"},"content_sha256":"c22ba71f4ef9c751d740ab6dc016159b4ad51105da6463f97bf9cf7e1ddaeec3","schema_version":"1.0","event_id":"sha256:c22ba71f4ef9c751d740ab6dc016159b4ad51105da6463f97bf9cf7e1ddaeec3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:WSXFFE3WHK2WCEZOUREANITBSJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunable Casimir repulsion with three dimensional topological insulators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Adolfo G. Grushin, Alberto Cortijo","submitted_at":"2010-02-18T10:54:54Z","abstract_excerpt":"In this Letter, we show that switching between repulsive and attractive Casimir forces by means of external tunable parameters could be realized with two topological insulator plates. We find two regimes where a repulsive (attractive) force is found at small (large) distances between the plates, canceling out at a critical distance. For a frequency range where the effective electromagnetic action is valid, this distance appears at length scales corresponding to $1-\\epsilon(\\omega) (2/\\pi)\\alpha\\theta$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.3481","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":"2026-05-18T04:31:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7h2x+9uIIu/OUqrgim6vdHkoFEORmkbWgPtc+RvO5/oqxW9I/SlmiZb90FRzeNesxceWJbBBwvLWXI/XAcFqDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T11:55:36.175337Z"},"content_sha256":"501753a2ccf608113d04a7d19e35fe79c225ecf9d30b8757ee49a41dda597a4e","schema_version":"1.0","event_id":"sha256:501753a2ccf608113d04a7d19e35fe79c225ecf9d30b8757ee49a41dda597a4e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WSXFFE3WHK2WCEZOUREANITBSJ/bundle.json","state_url":"https://pith.science/pith/WSXFFE3WHK2WCEZOUREANITBSJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WSXFFE3WHK2WCEZOUREANITBSJ/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":"2026-05-21T11:55:36Z","links":{"resolver":"https://pith.science/pith/WSXFFE3WHK2WCEZOUREANITBSJ","bundle":"https://pith.science/pith/WSXFFE3WHK2WCEZOUREANITBSJ/bundle.json","state":"https://pith.science/pith/WSXFFE3WHK2WCEZOUREANITBSJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WSXFFE3WHK2WCEZOUREANITBSJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:WSXFFE3WHK2WCEZOUREANITBSJ","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":"4c22fb6fbf671c7e4cacf32df4bde255368cd3124bff2e04b33a6f40e3977a88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-02-18T10:54:54Z","title_canon_sha256":"58b3ca1a66163c5c819586bf2afbee54deb7ae97c974f7482396f285efe22db6"},"schema_version":"1.0","source":{"id":"1002.3481","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.3481","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"arxiv_version","alias_value":"1002.3481v2","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.3481","created_at":"2026-05-18T04:31:51Z"},{"alias_kind":"pith_short_12","alias_value":"WSXFFE3WHK2W","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"WSXFFE3WHK2WCEZO","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"WSXFFE3W","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:501753a2ccf608113d04a7d19e35fe79c225ecf9d30b8757ee49a41dda597a4e","target":"graph","created_at":"2026-05-18T04:31:51Z","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":"In this Letter, we show that switching between repulsive and attractive Casimir forces by means of external tunable parameters could be realized with two topological insulator plates. We find two regimes where a repulsive (attractive) force is found at small (large) distances between the plates, canceling out at a critical distance. For a frequency range where the effective electromagnetic action is valid, this distance appears at length scales corresponding to $1-\\epsilon(\\omega) (2/\\pi)\\alpha\\theta$.","authors_text":"Adolfo G. Grushin, Alberto Cortijo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-02-18T10:54:54Z","title":"Tunable Casimir repulsion with three dimensional topological insulators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.3481","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:c22ba71f4ef9c751d740ab6dc016159b4ad51105da6463f97bf9cf7e1ddaeec3","target":"record","created_at":"2026-05-18T04:31:51Z","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":"4c22fb6fbf671c7e4cacf32df4bde255368cd3124bff2e04b33a6f40e3977a88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-02-18T10:54:54Z","title_canon_sha256":"58b3ca1a66163c5c819586bf2afbee54deb7ae97c974f7482396f285efe22db6"},"schema_version":"1.0","source":{"id":"1002.3481","kind":"arxiv","version":2}},"canonical_sha256":"b4ae5293763ab561132ea44806a261926f7a3f79dfa1fae10d204b47f28321d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4ae5293763ab561132ea44806a261926f7a3f79dfa1fae10d204b47f28321d7","first_computed_at":"2026-05-18T04:31:51.174765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:31:51.174765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ML5KvOMmmwdAYkV/JViKMR0HBLTm0y62Vxlf0bYDUWWSxOW4WvK4lTZqhDFNbHOSTqAXNw1E8s62i7zFoWViBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:31:51.175195Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.3481","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c22ba71f4ef9c751d740ab6dc016159b4ad51105da6463f97bf9cf7e1ddaeec3","sha256:501753a2ccf608113d04a7d19e35fe79c225ecf9d30b8757ee49a41dda597a4e"],"state_sha256":"86832f255a47d26bb7dd33309c5e2a36f25beee861e4a16f6e05c34e85f2f90e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UlcDvTjOldMUHiynDoFK9fn1uzsByhCO4vkTXJaA2+x6nfFNmpmC7ihAnRQGVifr2Fy0BRZzXpHa5tEepSPSDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T11:55:36.178462Z","bundle_sha256":"f55fed4df223017097bd265f8166c88f23e25a2bb7313a3bb16b4580796f345a"}}