{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NUKYYVZKQUIGXCM5BW4XOMHJTL","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":"da4f8d3c4b2d8dbf38d6d0d3fc381b6650f75a3f7dcc04119f595ed3e4745833","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-12-29T20:04:47Z","title_canon_sha256":"1d107056033b49fec0556a85e874568ba34f41d313cf901d0bb5880d497901ed"},"schema_version":"1.0","source":{"id":"1612.09272","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.09272","created_at":"2026-05-17T23:58:59Z"},{"alias_kind":"arxiv_version","alias_value":"1612.09272v1","created_at":"2026-05-17T23:58:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.09272","created_at":"2026-05-17T23:58:59Z"},{"alias_kind":"pith_short_12","alias_value":"NUKYYVZKQUIG","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NUKYYVZKQUIGXCM5","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NUKYYVZK","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:2c667e56b006d8951e57d44e399f483ada9a652955c3ee76d5338d700affe628","target":"graph","created_at":"2026-05-17T23:58:59Z","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 present the results of initiating a benchmarking scheme that allows for cross-comparison of the efficiencies of black holes used as working substances in heat engines. We use a circular cycle in the p-V plane as the benchmark engine. We test it on Einstein-Maxwell, Gauss-Bonnet, and Born-Infeld black holes. Also, we derive a new and surprising exact result for the efficiency of a special `ideal gas' system to which all the black holes asymptote.","authors_text":"Avik Chakraborty, Clifford V. Johnson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-12-29T20:04:47Z","title":"Benchmarking Black Hole Heat Engines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.09272","kind":"arxiv","version":1},"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:b7d93905d6658769307792c639e33ae05873614fe5925fa7fcf27555769eb5a9","target":"record","created_at":"2026-05-17T23:58:59Z","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":"da4f8d3c4b2d8dbf38d6d0d3fc381b6650f75a3f7dcc04119f595ed3e4745833","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2016-12-29T20:04:47Z","title_canon_sha256":"1d107056033b49fec0556a85e874568ba34f41d313cf901d0bb5880d497901ed"},"schema_version":"1.0","source":{"id":"1612.09272","kind":"arxiv","version":1}},"canonical_sha256":"6d158c572a85106b899d0db97730e99aea4dd383230b9018852dc39c733b42ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d158c572a85106b899d0db97730e99aea4dd383230b9018852dc39c733b42ee","first_computed_at":"2026-05-17T23:58:59.453458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:59.453458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DkwM0sR6LcWAw+s5OFlvWwRJneD94WKzTS7ZyMDzavXiAclXOpXtYUXgutQ2wP87ZDamZk9r2xu7fRu38a91AQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:59.454040Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.09272","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7d93905d6658769307792c639e33ae05873614fe5925fa7fcf27555769eb5a9","sha256:2c667e56b006d8951e57d44e399f483ada9a652955c3ee76d5338d700affe628"],"state_sha256":"5e38d89c9b4aaca5905432fa16696c693bf95a235ea4339c364e3da0bdd3c2f0"}