{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:UNQGPXVBAOJPUUKCAE5DRF5F34","short_pith_number":"pith:UNQGPXVB","canonical_record":{"source":{"id":"1705.08319","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-05-23T14:34:28Z","cross_cats_sorted":[],"title_canon_sha256":"23068443eb3ba15a7be94c3ae8df4971c0797feb2faa746f8d353ffef6407bec","abstract_canon_sha256":"134259d1371d58263f9333a675d118decf362c7749bf537ed0bae3a1cfe13b53"},"schema_version":"1.0"},"canonical_sha256":"a36067dea10392fa5142013a3897a5df030d279099680170d50e68c63c78b8c8","source":{"kind":"arxiv","id":"1705.08319","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08319","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08319v2","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08319","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"pith_short_12","alias_value":"UNQGPXVBAOJP","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UNQGPXVBAOJPUUKC","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UNQGPXVB","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:UNQGPXVBAOJPUUKCAE5DRF5F34","target":"record","payload":{"canonical_record":{"source":{"id":"1705.08319","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-05-23T14:34:28Z","cross_cats_sorted":[],"title_canon_sha256":"23068443eb3ba15a7be94c3ae8df4971c0797feb2faa746f8d353ffef6407bec","abstract_canon_sha256":"134259d1371d58263f9333a675d118decf362c7749bf537ed0bae3a1cfe13b53"},"schema_version":"1.0"},"canonical_sha256":"a36067dea10392fa5142013a3897a5df030d279099680170d50e68c63c78b8c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:04.059361Z","signature_b64":"JwXAPxl6DOz5Lun3Rayq0co6GFshEfLN1a3/l/v9y4OBscPzA+QUk2RXm4dyZaSN0Cih4mLzVmag0uOhmLQ8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a36067dea10392fa5142013a3897a5df030d279099680170d50e68c63c78b8c8","last_reissued_at":"2026-05-18T00:35:04.058693Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:04.058693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.08319","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":"2026-05-18T00:35:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f9pdXsc65h+OGxnQ2Pms9Ai7l+hA5RBJZGk65nF0sRxRVxzO7xknkQa9Bx8ourjKarexDHg/5bZKllK7O6VsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:44:39.329732Z"},"content_sha256":"9f6589852bab4210ca4bb7635eb65849fe1384a16411748a4362f3465ce28f10","schema_version":"1.0","event_id":"sha256:9f6589852bab4210ca4bb7635eb65849fe1384a16411748a4362f3465ce28f10"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:UNQGPXVBAOJPUUKCAE5DRF5F34","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibrated Entanglement Entropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"E. \\'O Colg\\'ain, H. Yavartanoo, I. Bakhmatov, J. Gutowski, N.S. Deger","submitted_at":"2017-05-23T14:34:28Z","abstract_excerpt":"The Ryu-Takayanagi prescription reduces the problem of calculating entanglement entropy in CFTs to the determination of minimal surfaces in a dual anti-de Sitter geometry. For 3D gravity theories and BTZ black holes, we identify the minimal surfaces as special Lagrangian cycles calibrated by the real part of the holomorphic one-form of a spacelike hypersurface. We show that (generalised) calibrations provide a unified way to determine holographic entanglement entropy from minimal surfaces, which is applicable to warped AdS$_3$ geometries. We briefly discuss generalisations to higher dimensions"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08319","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":"2026-05-18T00:35:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZRpISlQOojZPRTcLnQw/0KM4j44ICKD5yt1LQF6B1gCAYu2v4lbU1GQ35alGXQrG6iQZ512KPolynu2H6YgLBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:44:39.330445Z"},"content_sha256":"f776f664eaca9a1ca0468ddf6c597d48b676dd336ae42571596de643bdcfca8f","schema_version":"1.0","event_id":"sha256:f776f664eaca9a1ca0468ddf6c597d48b676dd336ae42571596de643bdcfca8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/bundle.json","state_url":"https://pith.science/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/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":"2026-05-27T19:44:39Z","links":{"resolver":"https://pith.science/pith/UNQGPXVBAOJPUUKCAE5DRF5F34","bundle":"https://pith.science/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/bundle.json","state":"https://pith.science/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UNQGPXVBAOJPUUKCAE5DRF5F34/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UNQGPXVBAOJPUUKCAE5DRF5F34","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":"134259d1371d58263f9333a675d118decf362c7749bf537ed0bae3a1cfe13b53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-05-23T14:34:28Z","title_canon_sha256":"23068443eb3ba15a7be94c3ae8df4971c0797feb2faa746f8d353ffef6407bec"},"schema_version":"1.0","source":{"id":"1705.08319","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08319","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08319v2","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08319","created_at":"2026-05-18T00:35:04Z"},{"alias_kind":"pith_short_12","alias_value":"UNQGPXVBAOJP","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UNQGPXVBAOJPUUKC","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UNQGPXVB","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:f776f664eaca9a1ca0468ddf6c597d48b676dd336ae42571596de643bdcfca8f","target":"graph","created_at":"2026-05-18T00:35:04Z","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":"The Ryu-Takayanagi prescription reduces the problem of calculating entanglement entropy in CFTs to the determination of minimal surfaces in a dual anti-de Sitter geometry. For 3D gravity theories and BTZ black holes, we identify the minimal surfaces as special Lagrangian cycles calibrated by the real part of the holomorphic one-form of a spacelike hypersurface. We show that (generalised) calibrations provide a unified way to determine holographic entanglement entropy from minimal surfaces, which is applicable to warped AdS$_3$ geometries. We briefly discuss generalisations to higher dimensions","authors_text":"E. \\'O Colg\\'ain, H. Yavartanoo, I. Bakhmatov, J. Gutowski, N.S. Deger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-05-23T14:34:28Z","title":"Calibrated Entanglement Entropy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08319","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":"sha256:9f6589852bab4210ca4bb7635eb65849fe1384a16411748a4362f3465ce28f10","target":"record","created_at":"2026-05-18T00:35:04Z","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":"134259d1371d58263f9333a675d118decf362c7749bf537ed0bae3a1cfe13b53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-05-23T14:34:28Z","title_canon_sha256":"23068443eb3ba15a7be94c3ae8df4971c0797feb2faa746f8d353ffef6407bec"},"schema_version":"1.0","source":{"id":"1705.08319","kind":"arxiv","version":2}},"canonical_sha256":"a36067dea10392fa5142013a3897a5df030d279099680170d50e68c63c78b8c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a36067dea10392fa5142013a3897a5df030d279099680170d50e68c63c78b8c8","first_computed_at":"2026-05-18T00:35:04.058693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:04.058693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JwXAPxl6DOz5Lun3Rayq0co6GFshEfLN1a3/l/v9y4OBscPzA+QUk2RXm4dyZaSN0Cih4mLzVmag0uOhmLQ8BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:04.059361Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.08319","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f6589852bab4210ca4bb7635eb65849fe1384a16411748a4362f3465ce28f10","sha256:f776f664eaca9a1ca0468ddf6c597d48b676dd336ae42571596de643bdcfca8f"],"state_sha256":"be2ccc4cf01bf00429a3d858c9e7419d9f6951ee08ba40744943ea049b550e90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SHgrnQFlBjlBlrkd2kjCsHwmx7217z67nZb87brwMfcdMebwEFWHTgIirDQ/BrKlaU5Qx0CQcFDAm6VO5C8JCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:44:39.334125Z","bundle_sha256":"fa1df6f0d48fa0ff33b9a89f142af34a82173f956f094144014ba09d126fe4c8"}}