{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:NZJHWVHCGZKNT4BKQBZBSIHEFY","short_pith_number":"pith:NZJHWVHC","canonical_record":{"source":{"id":"1802.00169","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-02-01T06:27:09Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"4c0f1fa1e7b20450d2319cb653a016aea48f605ad03a9167c44cdf7f08a44d0b","abstract_canon_sha256":"27a0bc8bfc791ebdcbec53d17802179a8b240b1a343e727d4b5ce449884749e5"},"schema_version":"1.0"},"canonical_sha256":"6e527b54e23654d9f02a80721920e42e0bc2d3b6c0d4f6208de69844053f1985","source":{"kind":"arxiv","id":"1802.00169","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00169","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00169v2","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00169","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"pith_short_12","alias_value":"NZJHWVHCGZKN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"NZJHWVHCGZKNT4BK","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"NZJHWVHC","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:NZJHWVHCGZKNT4BKQBZBSIHEFY","target":"record","payload":{"canonical_record":{"source":{"id":"1802.00169","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-02-01T06:27:09Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"4c0f1fa1e7b20450d2319cb653a016aea48f605ad03a9167c44cdf7f08a44d0b","abstract_canon_sha256":"27a0bc8bfc791ebdcbec53d17802179a8b240b1a343e727d4b5ce449884749e5"},"schema_version":"1.0"},"canonical_sha256":"6e527b54e23654d9f02a80721920e42e0bc2d3b6c0d4f6208de69844053f1985","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:54.704664Z","signature_b64":"mh9081LA1AOmxD7X/J+2xTaXrtzQIKsqlrpc1szVFAPJCjoWIcCVuGe6eK0L2fTPWOp25LPoffUiAJDWeMgPAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e527b54e23654d9f02a80721920e42e0bc2d3b6c0d4f6208de69844053f1985","last_reissued_at":"2026-05-18T00:08:54.703976Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:54.703976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.00169","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":"2026-05-18T00:08:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pYbfwusVXJSPwL1L3HOHjDm/AoU/w/g9flj/ZcprQpWP9yIRzzHpjMd06XCiMT6xtWMNTftfoHfeqRN2gWR9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:22:20.084016Z"},"content_sha256":"c6d8ef7610ae7054ec8f8d2dfeed2ad2ecb8ffd6e5eed0e3c3bb78afafe09f00","schema_version":"1.0","event_id":"sha256:c6d8ef7610ae7054ec8f8d2dfeed2ad2ecb8ffd6e5eed0e3c3bb78afafe09f00"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:NZJHWVHCGZKNT4BKQBZBSIHEFY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement Entropy for Open Bosonic Strings on $Dp$-branes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Taejin Lee","submitted_at":"2018-02-01T06:27:09Z","abstract_excerpt":"We study the entanglement entropy for open bosonic strings on multiple $Dp$-branes by using the covariant open string field theory. Choosing one of the spatial coordinates which are tangential to the hyperplane on which $Dp$-branes are located, we divide the hyperplane into two halves. By using the string wavefunction in the Fock space representation, we evaluate the entanglement entropy. The entanglement entropy is found to be proportional to the area of $(p-1)$-dimensional boundary of the bipartite hyperplanes and divergent in the ultraviolet (UV) region as well as in the infrared (IR) regio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00169","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":"2026-05-18T00:08:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Tn/7zZ84zcAACoUzPcY40qULuoaqqYSBFku+bOy3dZC+ZIrTbGeDlPJ/gm+MHWAjVfE7YPzBOXOPujg55GiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:22:20.084371Z"},"content_sha256":"8e92c719cc9fb288de6fffc3007b6994f4a6c1865cf0da59976d52e820c4fe57","schema_version":"1.0","event_id":"sha256:8e92c719cc9fb288de6fffc3007b6994f4a6c1865cf0da59976d52e820c4fe57"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/bundle.json","state_url":"https://pith.science/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/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":"2026-06-08T23:22:20Z","links":{"resolver":"https://pith.science/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY","bundle":"https://pith.science/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/bundle.json","state":"https://pith.science/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NZJHWVHCGZKNT4BKQBZBSIHEFY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:NZJHWVHCGZKNT4BKQBZBSIHEFY","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":"27a0bc8bfc791ebdcbec53d17802179a8b240b1a343e727d4b5ce449884749e5","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-02-01T06:27:09Z","title_canon_sha256":"4c0f1fa1e7b20450d2319cb653a016aea48f605ad03a9167c44cdf7f08a44d0b"},"schema_version":"1.0","source":{"id":"1802.00169","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00169","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00169v2","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00169","created_at":"2026-05-18T00:08:54Z"},{"alias_kind":"pith_short_12","alias_value":"NZJHWVHCGZKN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"NZJHWVHCGZKNT4BK","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"NZJHWVHC","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:8e92c719cc9fb288de6fffc3007b6994f4a6c1865cf0da59976d52e820c4fe57","target":"graph","created_at":"2026-05-18T00:08:54Z","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 entanglement entropy for open bosonic strings on multiple $Dp$-branes by using the covariant open string field theory. Choosing one of the spatial coordinates which are tangential to the hyperplane on which $Dp$-branes are located, we divide the hyperplane into two halves. By using the string wavefunction in the Fock space representation, we evaluate the entanglement entropy. The entanglement entropy is found to be proportional to the area of $(p-1)$-dimensional boundary of the bipartite hyperplanes and divergent in the ultraviolet (UV) region as well as in the infrared (IR) regio","authors_text":"Taejin Lee","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-02-01T06:27:09Z","title":"Entanglement Entropy for Open Bosonic Strings on $Dp$-branes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00169","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:c6d8ef7610ae7054ec8f8d2dfeed2ad2ecb8ffd6e5eed0e3c3bb78afafe09f00","target":"record","created_at":"2026-05-18T00:08:54Z","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":"27a0bc8bfc791ebdcbec53d17802179a8b240b1a343e727d4b5ce449884749e5","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-02-01T06:27:09Z","title_canon_sha256":"4c0f1fa1e7b20450d2319cb653a016aea48f605ad03a9167c44cdf7f08a44d0b"},"schema_version":"1.0","source":{"id":"1802.00169","kind":"arxiv","version":2}},"canonical_sha256":"6e527b54e23654d9f02a80721920e42e0bc2d3b6c0d4f6208de69844053f1985","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e527b54e23654d9f02a80721920e42e0bc2d3b6c0d4f6208de69844053f1985","first_computed_at":"2026-05-18T00:08:54.703976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:54.703976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mh9081LA1AOmxD7X/J+2xTaXrtzQIKsqlrpc1szVFAPJCjoWIcCVuGe6eK0L2fTPWOp25LPoffUiAJDWeMgPAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:54.704664Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.00169","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6d8ef7610ae7054ec8f8d2dfeed2ad2ecb8ffd6e5eed0e3c3bb78afafe09f00","sha256:8e92c719cc9fb288de6fffc3007b6994f4a6c1865cf0da59976d52e820c4fe57"],"state_sha256":"0cd4972f3d6ffea8a1a8351b247328b87d1c95ca3c8bf3c290ab9df50d12d6f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zqijUtjClcmQwgWKrucJ1lVuorgDRQu3BKtclcFlFoUO0eu7mmtSYLrMyNGANSLQpH/IrjpE4+C6ETYqsAMYDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T23:22:20.086158Z","bundle_sha256":"732e5ac9b86b8165ef1d8cd0bc0e5d766a38fbf34b33e4294e6e2e5dd53a62c6"}}