{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:CQPIGMQFJ6ABOXJXCF5IUDEBEQ","short_pith_number":"pith:CQPIGMQF","canonical_record":{"source":{"id":"1409.3269","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-10T22:38:52Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"53d33ececefd8114c6d9d54e9a79ad427e0a797d10f3034978299dbc9d5c4f42","abstract_canon_sha256":"5c3221b49e385e2d476223827139bebe4d7a21b5ff17ca280904f603b15687a4"},"schema_version":"1.0"},"canonical_sha256":"141e8332054f80175d37117a8a0c81240e8faac0b39a41d7fb77d9fbc426c08b","source":{"kind":"arxiv","id":"1409.3269","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3269","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3269v1","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3269","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"pith_short_12","alias_value":"CQPIGMQFJ6AB","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CQPIGMQFJ6ABOXJX","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CQPIGMQF","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:CQPIGMQFJ6ABOXJXCF5IUDEBEQ","target":"record","payload":{"canonical_record":{"source":{"id":"1409.3269","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-10T22:38:52Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"53d33ececefd8114c6d9d54e9a79ad427e0a797d10f3034978299dbc9d5c4f42","abstract_canon_sha256":"5c3221b49e385e2d476223827139bebe4d7a21b5ff17ca280904f603b15687a4"},"schema_version":"1.0"},"canonical_sha256":"141e8332054f80175d37117a8a0c81240e8faac0b39a41d7fb77d9fbc426c08b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:20:49.573023Z","signature_b64":"5c4idYhAwiqZfQxIcpjHHoUZsFeyKQHD7gmaYOAushY2Neu4hBRUw+1WNjbnL7tfD7uDK4BermhkhqFSvzzdBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"141e8332054f80175d37117a8a0c81240e8faac0b39a41d7fb77d9fbc426c08b","last_reissued_at":"2026-05-18T02:20:49.572278Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:20:49.572278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.3269","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":"2026-05-18T02:20:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BBjbD2IRlcVMHGeLvu2fI857Le9Hb509RdCOyCFHuurL/3xRmUF2EHO2E/6MttW0m+2bvFrIPHqzUKy8TQEkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T08:21:49.666071Z"},"content_sha256":"e20193b42fec63aaa47b3383e0c223cee94c44d3e4306f5b2e44b27304b44c9c","schema_version":"1.0","event_id":"sha256:e20193b42fec63aaa47b3383e0c223cee94c44d3e4306f5b2e44b27304b44c9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:CQPIGMQFJ6ABOXJXCF5IUDEBEQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement entropy as a witness of the Aharonov-Bohm effect in QFT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"hep-th","authors_text":"David D. Blanco, Horacio Casini, Ra\\'ul E. Arias","submitted_at":"2014-09-10T22:38:52Z","abstract_excerpt":"We study the dependence of the entanglement entropy with a magnetic flux, and show that the former quantity witnesses an Aharonov Bohm-like effect. In particular, we consider free charged scalar and Dirac fields living on a two dimensional cylinder and study how the entanglement entropy for a strip-like region on the surface of the cylinder is affected by a magnetic field enclosed by it."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3269","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":"2026-05-18T02:20:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KV7apdCs8VNxNhZS6rmfDt8x6CWEIGhAk3hhumsj6MrvkqPEeoJsXq7zSJNpuX0JrF/RN7oFf6PFOh0RQ/WQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T08:21:49.666437Z"},"content_sha256":"0c70007950c648a5eb030b228e3d241b69abbffe803ee4f422e55d33ada25db3","schema_version":"1.0","event_id":"sha256:0c70007950c648a5eb030b228e3d241b69abbffe803ee4f422e55d33ada25db3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/bundle.json","state_url":"https://pith.science/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/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":"2026-06-04T08:21:49Z","links":{"resolver":"https://pith.science/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ","bundle":"https://pith.science/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/bundle.json","state":"https://pith.science/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CQPIGMQFJ6ABOXJXCF5IUDEBEQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:CQPIGMQFJ6ABOXJXCF5IUDEBEQ","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":"5c3221b49e385e2d476223827139bebe4d7a21b5ff17ca280904f603b15687a4","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-10T22:38:52Z","title_canon_sha256":"53d33ececefd8114c6d9d54e9a79ad427e0a797d10f3034978299dbc9d5c4f42"},"schema_version":"1.0","source":{"id":"1409.3269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3269","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3269v1","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3269","created_at":"2026-05-18T02:20:49Z"},{"alias_kind":"pith_short_12","alias_value":"CQPIGMQFJ6AB","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CQPIGMQFJ6ABOXJX","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CQPIGMQF","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:0c70007950c648a5eb030b228e3d241b69abbffe803ee4f422e55d33ada25db3","target":"graph","created_at":"2026-05-18T02:20:49Z","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 study the dependence of the entanglement entropy with a magnetic flux, and show that the former quantity witnesses an Aharonov Bohm-like effect. In particular, we consider free charged scalar and Dirac fields living on a two dimensional cylinder and study how the entanglement entropy for a strip-like region on the surface of the cylinder is affected by a magnetic field enclosed by it.","authors_text":"David D. Blanco, Horacio Casini, Ra\\'ul E. Arias","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-10T22:38:52Z","title":"Entanglement entropy as a witness of the Aharonov-Bohm effect in QFT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3269","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:e20193b42fec63aaa47b3383e0c223cee94c44d3e4306f5b2e44b27304b44c9c","target":"record","created_at":"2026-05-18T02:20:49Z","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":"5c3221b49e385e2d476223827139bebe4d7a21b5ff17ca280904f603b15687a4","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-10T22:38:52Z","title_canon_sha256":"53d33ececefd8114c6d9d54e9a79ad427e0a797d10f3034978299dbc9d5c4f42"},"schema_version":"1.0","source":{"id":"1409.3269","kind":"arxiv","version":1}},"canonical_sha256":"141e8332054f80175d37117a8a0c81240e8faac0b39a41d7fb77d9fbc426c08b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"141e8332054f80175d37117a8a0c81240e8faac0b39a41d7fb77d9fbc426c08b","first_computed_at":"2026-05-18T02:20:49.572278Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:20:49.572278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5c4idYhAwiqZfQxIcpjHHoUZsFeyKQHD7gmaYOAushY2Neu4hBRUw+1WNjbnL7tfD7uDK4BermhkhqFSvzzdBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:20:49.573023Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.3269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e20193b42fec63aaa47b3383e0c223cee94c44d3e4306f5b2e44b27304b44c9c","sha256:0c70007950c648a5eb030b228e3d241b69abbffe803ee4f422e55d33ada25db3"],"state_sha256":"6afbf1d4eb14c7642bb5f9b31bb901db378da23b08e8df89bd13e9f45693564b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G19CLYI0POFuu/ENl2mlyZ3GVhWFMtf5fMduJvkaPpWrRvL7pf0TdXVBh2Fk+DkAUfvwcU93GIAE7rx8HQHZBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T08:21:49.668350Z","bundle_sha256":"dca9adcc1fc338503fbff5c5f5a02c8e05bd3eb9bed7039c64a51089d68dbe1d"}}