{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3T2BIF7D2O5TLVMWWYCEWK3DKU","short_pith_number":"pith:3T2BIF7D","canonical_record":{"source":{"id":"1806.03161","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-08T14:01:25Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"6a5186693a6a7e354edce8525e29423c43ca4017fa9d994be5b8ac35cf8ffaa6","abstract_canon_sha256":"182a91416d8e8f572ddedcf2bcf8bf2714224b6ae7afc2dd1e3bf75d3d442685"},"schema_version":"1.0"},"canonical_sha256":"dcf41417e3d3bb35d596b6044b2b635530bf5e25a5ecb3b65462f3448be0c182","source":{"kind":"arxiv","id":"1806.03161","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.03161","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"arxiv_version","alias_value":"1806.03161v2","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03161","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"pith_short_12","alias_value":"3T2BIF7D2O5T","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3T2BIF7D2O5TLVMW","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3T2BIF7D","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3T2BIF7D2O5TLVMWWYCEWK3DKU","target":"record","payload":{"canonical_record":{"source":{"id":"1806.03161","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-08T14:01:25Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"6a5186693a6a7e354edce8525e29423c43ca4017fa9d994be5b8ac35cf8ffaa6","abstract_canon_sha256":"182a91416d8e8f572ddedcf2bcf8bf2714224b6ae7afc2dd1e3bf75d3d442685"},"schema_version":"1.0"},"canonical_sha256":"dcf41417e3d3bb35d596b6044b2b635530bf5e25a5ecb3b65462f3448be0c182","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:46.800600Z","signature_b64":"YI3Fb+MB7iUWWvYQNYjIpiDa2WW604Xiq2HNmersEEhH3stYg8588lGiHnp1kdwZ1pjxdLT4yISpRpUrxuT8Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcf41417e3d3bb35d596b6044b2b635530bf5e25a5ecb3b65462f3448be0c182","last_reissued_at":"2026-05-17T23:57:46.799982Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:46.799982Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.03161","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":"2026-05-17T23:57:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"evIFlab/pCrafX3tYvBXGlurDGvU64S3JRBph9xAxqxqg8vfOdCU2yQY4maYXBTzWW+F3nl8cORVTyB0+6brBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:27:55.517150Z"},"content_sha256":"d95783311bea970169d846697376acfacdc47a62af85e08e55a63848b658db4d","schema_version":"1.0","event_id":"sha256:d95783311bea970169d846697376acfacdc47a62af85e08e55a63848b658db4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3T2BIF7D2O5TLVMWWYCEWK3DKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electromagnetic duality and central charge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Daniele Pranzetti, Laurent Freidel","submitted_at":"2018-06-08T14:01:25Z","abstract_excerpt":"We provide a full realization of the electromagnetic duality at the boundary by extending the phase space of Maxwell's theory through the introduction of edge modes and their conjugate momenta. We show how such extension, which follows from a boundary action, is necessary in order to have well defined canonical generators of the boundary magnetic symmetries. In this way, both electric and magnetic soft modes are encoded in a boundary gauge field and its conjugate dual. This implementation of the electromagnetic duality has striking consequences. In particular, we show first how the electric ch"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03161","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":"2026-05-17T23:57:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9pJUC4K4e9AGRiFnQKs8UwAD1dENkVWrwceoQ1T+GnWLWvf2iyeWTXCEUubaVbCahidBPwB2Kcnn9BAZ0gfaCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:27:55.517824Z"},"content_sha256":"e6ff991d4f37f2537208cad93dbbfab143e6450bd38ebab784e13114ef0225a0","schema_version":"1.0","event_id":"sha256:e6ff991d4f37f2537208cad93dbbfab143e6450bd38ebab784e13114ef0225a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/bundle.json","state_url":"https://pith.science/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/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":"2026-05-26T20:27:55Z","links":{"resolver":"https://pith.science/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU","bundle":"https://pith.science/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/bundle.json","state":"https://pith.science/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3T2BIF7D2O5TLVMWWYCEWK3DKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3T2BIF7D2O5TLVMWWYCEWK3DKU","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":"182a91416d8e8f572ddedcf2bcf8bf2714224b6ae7afc2dd1e3bf75d3d442685","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-08T14:01:25Z","title_canon_sha256":"6a5186693a6a7e354edce8525e29423c43ca4017fa9d994be5b8ac35cf8ffaa6"},"schema_version":"1.0","source":{"id":"1806.03161","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.03161","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"arxiv_version","alias_value":"1806.03161v2","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03161","created_at":"2026-05-17T23:57:46Z"},{"alias_kind":"pith_short_12","alias_value":"3T2BIF7D2O5T","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3T2BIF7D2O5TLVMW","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3T2BIF7D","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:e6ff991d4f37f2537208cad93dbbfab143e6450bd38ebab784e13114ef0225a0","target":"graph","created_at":"2026-05-17T23:57:46Z","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 provide a full realization of the electromagnetic duality at the boundary by extending the phase space of Maxwell's theory through the introduction of edge modes and their conjugate momenta. We show how such extension, which follows from a boundary action, is necessary in order to have well defined canonical generators of the boundary magnetic symmetries. In this way, both electric and magnetic soft modes are encoded in a boundary gauge field and its conjugate dual. This implementation of the electromagnetic duality has striking consequences. In particular, we show first how the electric ch","authors_text":"Daniele Pranzetti, Laurent Freidel","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-08T14:01:25Z","title":"Electromagnetic duality and central charge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03161","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:d95783311bea970169d846697376acfacdc47a62af85e08e55a63848b658db4d","target":"record","created_at":"2026-05-17T23:57:46Z","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":"182a91416d8e8f572ddedcf2bcf8bf2714224b6ae7afc2dd1e3bf75d3d442685","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-08T14:01:25Z","title_canon_sha256":"6a5186693a6a7e354edce8525e29423c43ca4017fa9d994be5b8ac35cf8ffaa6"},"schema_version":"1.0","source":{"id":"1806.03161","kind":"arxiv","version":2}},"canonical_sha256":"dcf41417e3d3bb35d596b6044b2b635530bf5e25a5ecb3b65462f3448be0c182","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcf41417e3d3bb35d596b6044b2b635530bf5e25a5ecb3b65462f3448be0c182","first_computed_at":"2026-05-17T23:57:46.799982Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:46.799982Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YI3Fb+MB7iUWWvYQNYjIpiDa2WW604Xiq2HNmersEEhH3stYg8588lGiHnp1kdwZ1pjxdLT4yISpRpUrxuT8Dw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:46.800600Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.03161","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d95783311bea970169d846697376acfacdc47a62af85e08e55a63848b658db4d","sha256:e6ff991d4f37f2537208cad93dbbfab143e6450bd38ebab784e13114ef0225a0"],"state_sha256":"0b99a83118dce037e68f4e61c9a89926fa6bc5e51db1c4d62c8d20d5e213c53b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MlvrKDmXukpRfOvGeDncnBk0A5Z0FmvjM9mDHkd9t7BugitpROxrTqKND4V4LyfqwSarIuKJcKsTysANHfDqCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:27:55.521304Z","bundle_sha256":"ad73628c4b0c68e170c4f1a8368b929c0eb5e14a262bc7d1be07aac26948185c"}}