{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:PULQLPA5YXYVRN442XHIAFFWH4","short_pith_number":"pith:PULQLPA5","canonical_record":{"source":{"id":"quant-ph/9902074","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-02-24T09:57:05Z","cross_cats_sorted":[],"title_canon_sha256":"ae5cf1f5148a8a43d863001f5dec9b2fa14d265282a5c1d530e5c034a2df875a","abstract_canon_sha256":"e93ad7388092581abff5686c3f7d6bb3aa56d10feff444c27ca80e7e73d639d3"},"schema_version":"1.0"},"canonical_sha256":"7d1705bc1dc5f158b79cd5ce8014b63f146cd26e094bface3c01cbf1adba5b61","source":{"kind":"arxiv","id":"quant-ph/9902074","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9902074","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9902074v1","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9902074","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"pith_short_12","alias_value":"PULQLPA5YXYV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"PULQLPA5YXYVRN44","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"PULQLPA5","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:PULQLPA5YXYVRN442XHIAFFWH4","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/9902074","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-02-24T09:57:05Z","cross_cats_sorted":[],"title_canon_sha256":"ae5cf1f5148a8a43d863001f5dec9b2fa14d265282a5c1d530e5c034a2df875a","abstract_canon_sha256":"e93ad7388092581abff5686c3f7d6bb3aa56d10feff444c27ca80e7e73d639d3"},"schema_version":"1.0"},"canonical_sha256":"7d1705bc1dc5f158b79cd5ce8014b63f146cd26e094bface3c01cbf1adba5b61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:18.198506Z","signature_b64":"MVJ+zZxqQIbkfctdbr4jb4ZKjmkNfEVTld6nCtvWlv5X2HGeutBrXv3+KlU0wP3s3kuCVG8gCfLNjDW9WTqlCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d1705bc1dc5f158b79cd5ce8014b63f146cd26e094bface3c01cbf1adba5b61","last_reissued_at":"2026-05-18T04:11:18.197969Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:18.197969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/9902074","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:11:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l1WyvHpJIiUP7xXVwJXlY1vMtMcl8LkxqqBTmHw+yckYgUdfjeQE2upTGCN95zaAUMeSIbnMBqfL0gncVRXVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T08:18:41.377346Z"},"content_sha256":"1c98a9d4bc023e830be775e1de33ce458b631b458da5df038061adb583dc2887","schema_version":"1.0","event_id":"sha256:1c98a9d4bc023e830be775e1de33ce458b631b458da5df038061adb583dc2887"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:PULQLPA5YXYVRN442XHIAFFWH4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermodynamics of the Casimir effect","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"D. Robaschik, H. Mitter","submitted_at":"1999-02-24T09:57:05Z","abstract_excerpt":"A complete thermodynamic treatment of the Casimir effect is presented. Explicit expressions for the free and the internal energy, the entropy and the pressure are discussed. As an example we consider the Casimir effect with different temperatures between the plates ($T$) resp. outside of them ($T'$). For $T'<T$ the pressure of heat radiation can eventually compensate the Casimir force and the total pressure can vanish. We consider both an isothermal and an adiabatic treatment of the interior region. The equilibrium point (vanishing pressure) turns out instable in the isothermal case. In the ad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9902074","kind":"arxiv","version":1},"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":"2026-05-18T04:11:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CLQog+jVMqZODt65JhsYqST06jy6TCZ9Tq7TXWa3K/wtiVJM2kL8ak5duN2cDe4+1JSaRrC1yRwRLGkhT7A9CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T08:18:41.377696Z"},"content_sha256":"e56c9f6e9db79dcce474a5e71dfd1bace267f6173a147497e7a85be2820ed84d","schema_version":"1.0","event_id":"sha256:e56c9f6e9db79dcce474a5e71dfd1bace267f6173a147497e7a85be2820ed84d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PULQLPA5YXYVRN442XHIAFFWH4/bundle.json","state_url":"https://pith.science/pith/PULQLPA5YXYVRN442XHIAFFWH4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PULQLPA5YXYVRN442XHIAFFWH4/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":"2026-06-01T08:18:41Z","links":{"resolver":"https://pith.science/pith/PULQLPA5YXYVRN442XHIAFFWH4","bundle":"https://pith.science/pith/PULQLPA5YXYVRN442XHIAFFWH4/bundle.json","state":"https://pith.science/pith/PULQLPA5YXYVRN442XHIAFFWH4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PULQLPA5YXYVRN442XHIAFFWH4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:PULQLPA5YXYVRN442XHIAFFWH4","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":"e93ad7388092581abff5686c3f7d6bb3aa56d10feff444c27ca80e7e73d639d3","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-02-24T09:57:05Z","title_canon_sha256":"ae5cf1f5148a8a43d863001f5dec9b2fa14d265282a5c1d530e5c034a2df875a"},"schema_version":"1.0","source":{"id":"quant-ph/9902074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9902074","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9902074v1","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9902074","created_at":"2026-05-18T04:11:18Z"},{"alias_kind":"pith_short_12","alias_value":"PULQLPA5YXYV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"PULQLPA5YXYVRN44","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"PULQLPA5","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:e56c9f6e9db79dcce474a5e71dfd1bace267f6173a147497e7a85be2820ed84d","target":"graph","created_at":"2026-05-18T04:11:18Z","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":"A complete thermodynamic treatment of the Casimir effect is presented. Explicit expressions for the free and the internal energy, the entropy and the pressure are discussed. As an example we consider the Casimir effect with different temperatures between the plates ($T$) resp. outside of them ($T'$). For $T'<T$ the pressure of heat radiation can eventually compensate the Casimir force and the total pressure can vanish. We consider both an isothermal and an adiabatic treatment of the interior region. The equilibrium point (vanishing pressure) turns out instable in the isothermal case. In the ad","authors_text":"D. Robaschik, H. Mitter","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1999-02-24T09:57:05Z","title":"Thermodynamics of the Casimir effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9902074","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":"sha256:1c98a9d4bc023e830be775e1de33ce458b631b458da5df038061adb583dc2887","target":"record","created_at":"2026-05-18T04:11:18Z","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":"e93ad7388092581abff5686c3f7d6bb3aa56d10feff444c27ca80e7e73d639d3","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-02-24T09:57:05Z","title_canon_sha256":"ae5cf1f5148a8a43d863001f5dec9b2fa14d265282a5c1d530e5c034a2df875a"},"schema_version":"1.0","source":{"id":"quant-ph/9902074","kind":"arxiv","version":1}},"canonical_sha256":"7d1705bc1dc5f158b79cd5ce8014b63f146cd26e094bface3c01cbf1adba5b61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d1705bc1dc5f158b79cd5ce8014b63f146cd26e094bface3c01cbf1adba5b61","first_computed_at":"2026-05-18T04:11:18.197969Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:18.197969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MVJ+zZxqQIbkfctdbr4jb4ZKjmkNfEVTld6nCtvWlv5X2HGeutBrXv3+KlU0wP3s3kuCVG8gCfLNjDW9WTqlCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:18.198506Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9902074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c98a9d4bc023e830be775e1de33ce458b631b458da5df038061adb583dc2887","sha256:e56c9f6e9db79dcce474a5e71dfd1bace267f6173a147497e7a85be2820ed84d"],"state_sha256":"33f60b62688cb02d85dfedcfaba2bc200e8412b5a68a8113c932415c19a4726e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"66/MOsbUnPHyQ64LPdXqMFogsJV6EwcUu4n4Cysj5KyjuBmFYIBjU6aqQlcxmVK/MXnw8Rz8ymOsPy4wkO8iCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T08:18:41.379578Z","bundle_sha256":"90aca28c81bb2871e1ea31a866db68a72c7421e0a6ea0b05fd34d2c0544bf73b"}}