{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:VKYTOEU5K5WDA67VINZAKMH5XD","short_pith_number":"pith:VKYTOEU5","canonical_record":{"source":{"id":"1704.04363","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-04-14T06:31:13Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"caec5ca4898769f6683b759de4329d69f43aed4035a36abf4b32da5b78e05479","abstract_canon_sha256":"88cf0243d6f18b5d6328e527fd76681d97f600c0009973e6438c109b9c24b0ad"},"schema_version":"1.0"},"canonical_sha256":"aab137129d576c307bf543720530fdb8f4ab209a85217e04c5875b8ff4cca6aa","source":{"kind":"arxiv","id":"1704.04363","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04363","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04363v4","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04363","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"VKYTOEU5K5WD","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKYTOEU5K5WDA67V","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKYTOEU5","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:VKYTOEU5K5WDA67VINZAKMH5XD","target":"record","payload":{"canonical_record":{"source":{"id":"1704.04363","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-04-14T06:31:13Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"caec5ca4898769f6683b759de4329d69f43aed4035a36abf4b32da5b78e05479","abstract_canon_sha256":"88cf0243d6f18b5d6328e527fd76681d97f600c0009973e6438c109b9c24b0ad"},"schema_version":"1.0"},"canonical_sha256":"aab137129d576c307bf543720530fdb8f4ab209a85217e04c5875b8ff4cca6aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:43.267100Z","signature_b64":"vv4Ffl3qZdvJhfvzAx0YhI5+OXJJc8z2LUFvJAw6SqpshWEw6jq1YFHba/ov3twDYy/pLgcuIL8Gga5nqx0bAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aab137129d576c307bf543720530fdb8f4ab209a85217e04c5875b8ff4cca6aa","last_reissued_at":"2026-05-18T00:36:43.266483Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:43.266483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.04363","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rIqpxoIqndjxtAmeC7eeqmEaHJx7YXY1OBfUspjwXPr8yAPhVuKsi5R8jR6lKFprW4+6Gv9S6OyXAnB2pKN4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T21:15:04.829337Z"},"content_sha256":"78cfebb8e5d33686173772fb4c15f9241a9ec42d833a15904fa840fe4471191e","schema_version":"1.0","event_id":"sha256:78cfebb8e5d33686173772fb4c15f9241a9ec42d833a15904fa840fe4471191e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:VKYTOEU5K5WDA67VINZAKMH5XD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of dark energy on the efficiency of charged AdS black holes as heat engine","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Hang Liu, Xin-he Meng","submitted_at":"2017-04-14T06:31:13Z","abstract_excerpt":"In this paper, we study the heat engine where charged AdS black holes surrounded by dark energy is the working substance and the mechanical work is done via $PdV$ term in the first law of black hole thermodynamics in the extended phase space. We first investigate the effects of a kind of dark energy (quintessence field in this paper) on the efficiency of the RN-AdS black holes as heat engine defined as a rectangle closed path in the $P-V$ plane. We get the exact efficiency formula and find that quintessence field can improve the heat engine efficiency which will increase as the field density $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04363","kind":"arxiv","version":4},"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":"2026-05-18T00:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UhBrQ0zHaKTBMI9noLWg7aS1KbqZft6Eaf9Sk8bEdymPi3UekMNQ3F4dhev995OYRiNG0O2zLZw2zFLUMLhJAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T21:15:04.829848Z"},"content_sha256":"a56926754aa29f4fb0e2c1683718e323d4544d7328d0596394bff2a550d8ee64","schema_version":"1.0","event_id":"sha256:a56926754aa29f4fb0e2c1683718e323d4544d7328d0596394bff2a550d8ee64"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKYTOEU5K5WDA67VINZAKMH5XD/bundle.json","state_url":"https://pith.science/pith/VKYTOEU5K5WDA67VINZAKMH5XD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKYTOEU5K5WDA67VINZAKMH5XD/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":"2026-08-15T21:15:04Z","links":{"resolver":"https://pith.science/pith/VKYTOEU5K5WDA67VINZAKMH5XD","bundle":"https://pith.science/pith/VKYTOEU5K5WDA67VINZAKMH5XD/bundle.json","state":"https://pith.science/pith/VKYTOEU5K5WDA67VINZAKMH5XD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKYTOEU5K5WDA67VINZAKMH5XD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VKYTOEU5K5WDA67VINZAKMH5XD","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":"88cf0243d6f18b5d6328e527fd76681d97f600c0009973e6438c109b9c24b0ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-04-14T06:31:13Z","title_canon_sha256":"caec5ca4898769f6683b759de4329d69f43aed4035a36abf4b32da5b78e05479"},"schema_version":"1.0","source":{"id":"1704.04363","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04363","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04363v4","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04363","created_at":"2026-05-18T00:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"VKYTOEU5K5WD","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKYTOEU5K5WDA67V","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKYTOEU5","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:a56926754aa29f4fb0e2c1683718e323d4544d7328d0596394bff2a550d8ee64","target":"graph","created_at":"2026-05-18T00:36:43Z","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":"In this paper, we study the heat engine where charged AdS black holes surrounded by dark energy is the working substance and the mechanical work is done via $PdV$ term in the first law of black hole thermodynamics in the extended phase space. We first investigate the effects of a kind of dark energy (quintessence field in this paper) on the efficiency of the RN-AdS black holes as heat engine defined as a rectangle closed path in the $P-V$ plane. We get the exact efficiency formula and find that quintessence field can improve the heat engine efficiency which will increase as the field density $","authors_text":"Hang Liu, Xin-he Meng","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-04-14T06:31:13Z","title":"Effects of dark energy on the efficiency of charged AdS black holes as heat engine"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04363","kind":"arxiv","version":4},"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":"sha256:78cfebb8e5d33686173772fb4c15f9241a9ec42d833a15904fa840fe4471191e","target":"record","created_at":"2026-05-18T00:36:43Z","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":"88cf0243d6f18b5d6328e527fd76681d97f600c0009973e6438c109b9c24b0ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-04-14T06:31:13Z","title_canon_sha256":"caec5ca4898769f6683b759de4329d69f43aed4035a36abf4b32da5b78e05479"},"schema_version":"1.0","source":{"id":"1704.04363","kind":"arxiv","version":4}},"canonical_sha256":"aab137129d576c307bf543720530fdb8f4ab209a85217e04c5875b8ff4cca6aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aab137129d576c307bf543720530fdb8f4ab209a85217e04c5875b8ff4cca6aa","first_computed_at":"2026-05-18T00:36:43.266483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:43.266483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vv4Ffl3qZdvJhfvzAx0YhI5+OXJJc8z2LUFvJAw6SqpshWEw6jq1YFHba/ov3twDYy/pLgcuIL8Gga5nqx0bAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:43.267100Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.04363","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78cfebb8e5d33686173772fb4c15f9241a9ec42d833a15904fa840fe4471191e","sha256:a56926754aa29f4fb0e2c1683718e323d4544d7328d0596394bff2a550d8ee64"],"state_sha256":"83e1eb7717e020b99046ae2fcedf137e16cbaf1d89cc4841de662f3d8842b3a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ajGbGRseaqEOrK6/tsjSA+j0MGAlAXcxaNBe3yGLbTfQLFwrgmzt+9gm47uHbJIiXjX5x0s9DMVk2JO1jLr0Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T21:15:04.835133Z","bundle_sha256":"88d897ba2d725b8f2a70897d0e84fbf64379d7da108b1fad53687c6e5274d2a0"}}