{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:Z7P4ZCEWUNUYJM4FVTOB42COFV","short_pith_number":"pith:Z7P4ZCEW","canonical_record":{"source":{"id":"2101.00024","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T19:00:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ef8417c95a3c860a5053a8b4464b160006a4f4c9d4ff973e392a760c613bfcd7","abstract_canon_sha256":"782e3fc8247984b341d5320dc2c37675159794b6fe483d5d88b66ca280f21c40"},"schema_version":"1.0"},"canonical_sha256":"cfdfcc8896a36984b385acdc1e684e2d5b0dc8a3ac0798914df0a748ca09e452","source":{"kind":"arxiv","id":"2101.00024","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.00024","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"arxiv_version","alias_value":"2101.00024v2","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.00024","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_12","alias_value":"Z7P4ZCEWUNUY","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_16","alias_value":"Z7P4ZCEWUNUYJM4F","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_8","alias_value":"Z7P4ZCEW","created_at":"2026-07-05T02:26:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:Z7P4ZCEWUNUYJM4FVTOB42COFV","target":"record","payload":{"canonical_record":{"source":{"id":"2101.00024","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T19:00:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ef8417c95a3c860a5053a8b4464b160006a4f4c9d4ff973e392a760c613bfcd7","abstract_canon_sha256":"782e3fc8247984b341d5320dc2c37675159794b6fe483d5d88b66ca280f21c40"},"schema_version":"1.0"},"canonical_sha256":"cfdfcc8896a36984b385acdc1e684e2d5b0dc8a3ac0798914df0a748ca09e452","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:26:54.167886Z","signature_b64":"4j1Uyd01++VVIbToC9lOI2reQNkvq14fIdkc3sxk74HB8ZWM/TcEz+OVscy0646JBxNz/2OgsalGoip0qA+8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfdfcc8896a36984b385acdc1e684e2d5b0dc8a3ac0798914df0a748ca09e452","last_reissued_at":"2026-07-05T02:26:54.167403Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:26:54.167403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.00024","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":"2026-07-05T02:26:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sp4pIXpnJEfkyGsNsfCr1w63Wqh9NOsecXsKkwr/sQxyr0jTGhQ0ItJT6yv8nw2pviqwcUojWYY/yECmRvOlAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:51:48.991737Z"},"content_sha256":"f015d745688f9be02945d8b78194969dc25e410d48bdf27d1b8800d6c7eedddb","schema_version":"1.0","event_id":"sha256:f015d745688f9be02945d8b78194969dc25e410d48bdf27d1b8800d6c7eedddb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:Z7P4ZCEWUNUYJM4FVTOB42COFV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Islands in Linear Dilaton Black Holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Alex Kehagias, Georgios K. Karananas, John Taskas","submitted_at":"2020-12-31T19:00:05Z","abstract_excerpt":"We derive a novel four-dimensional black hole with planar horizon that asymptotes to the linear dilaton background. The usual growth of its entanglement entropy before Page's time is established. After that, emergent islands modify to a large extent the entropy, which becomes finite and is saturated by its Bekenstein-Hawking value in accordance with the finiteness of the von Neumann entropy of eternal black holes. We demonstrate that viewed from the string frame, our solution is the two-dimensional Witten black hole with two additional free bosons. We generalize our findings by considering a g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.00024","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2101.00024/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:26:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"str1+wz1WyBLY5HVfnsE8RU2jhAOBYpMe4qTp2Dn6RWKkhm0EaxZ6ZTuU42C5uKDiW/tXlUk5Uqf9GdBPt49BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:51:48.992229Z"},"content_sha256":"fad1dc97efc1f22aa97d628f22566cb2a452ff051668b13b26ca9f2c0c84f6a0","schema_version":"1.0","event_id":"sha256:fad1dc97efc1f22aa97d628f22566cb2a452ff051668b13b26ca9f2c0c84f6a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/bundle.json","state_url":"https://pith.science/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/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":"2026-08-06T15:51:48Z","links":{"resolver":"https://pith.science/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV","bundle":"https://pith.science/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/bundle.json","state":"https://pith.science/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z7P4ZCEWUNUYJM4FVTOB42COFV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:Z7P4ZCEWUNUYJM4FVTOB42COFV","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":"782e3fc8247984b341d5320dc2c37675159794b6fe483d5d88b66ca280f21c40","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T19:00:05Z","title_canon_sha256":"ef8417c95a3c860a5053a8b4464b160006a4f4c9d4ff973e392a760c613bfcd7"},"schema_version":"1.0","source":{"id":"2101.00024","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.00024","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"arxiv_version","alias_value":"2101.00024v2","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.00024","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_12","alias_value":"Z7P4ZCEWUNUY","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_16","alias_value":"Z7P4ZCEWUNUYJM4F","created_at":"2026-07-05T02:26:54Z"},{"alias_kind":"pith_short_8","alias_value":"Z7P4ZCEW","created_at":"2026-07-05T02:26:54Z"}],"graph_snapshots":[{"event_id":"sha256:fad1dc97efc1f22aa97d628f22566cb2a452ff051668b13b26ca9f2c0c84f6a0","target":"graph","created_at":"2026-07-05T02:26:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.00024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We derive a novel four-dimensional black hole with planar horizon that asymptotes to the linear dilaton background. The usual growth of its entanglement entropy before Page's time is established. After that, emergent islands modify to a large extent the entropy, which becomes finite and is saturated by its Bekenstein-Hawking value in accordance with the finiteness of the von Neumann entropy of eternal black holes. We demonstrate that viewed from the string frame, our solution is the two-dimensional Witten black hole with two additional free bosons. We generalize our findings by considering a g","authors_text":"Alex Kehagias, Georgios K. Karananas, John Taskas","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T19:00:05Z","title":"Islands in Linear Dilaton Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.00024","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:f015d745688f9be02945d8b78194969dc25e410d48bdf27d1b8800d6c7eedddb","target":"record","created_at":"2026-07-05T02:26:54Z","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":"782e3fc8247984b341d5320dc2c37675159794b6fe483d5d88b66ca280f21c40","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T19:00:05Z","title_canon_sha256":"ef8417c95a3c860a5053a8b4464b160006a4f4c9d4ff973e392a760c613bfcd7"},"schema_version":"1.0","source":{"id":"2101.00024","kind":"arxiv","version":2}},"canonical_sha256":"cfdfcc8896a36984b385acdc1e684e2d5b0dc8a3ac0798914df0a748ca09e452","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfdfcc8896a36984b385acdc1e684e2d5b0dc8a3ac0798914df0a748ca09e452","first_computed_at":"2026-07-05T02:26:54.167403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:26:54.167403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4j1Uyd01++VVIbToC9lOI2reQNkvq14fIdkc3sxk74HB8ZWM/TcEz+OVscy0646JBxNz/2OgsalGoip0qA+8BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:26:54.167886Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.00024","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f015d745688f9be02945d8b78194969dc25e410d48bdf27d1b8800d6c7eedddb","sha256:fad1dc97efc1f22aa97d628f22566cb2a452ff051668b13b26ca9f2c0c84f6a0"],"state_sha256":"bc92c12aac3bbe13a5a08bb65acf0c0e543ff23897753ec1b65eda5bc47db50f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Haay+XetQYzw3e2saCI4FsEINv2+cmzgSxQ9WlFNs8tcWSB53PqewZgne4ZTtlBapvdWGMRHygPMaTJJZTLzCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T15:51:48.996549Z","bundle_sha256":"af63f6ff80a3da6b105c3ad13309a1c63850b222bfd46be99a0f534ff89d5333"}}