{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PCRYQ4R2LQIE3NX6Q5A3NHKDS2","short_pith_number":"pith:PCRYQ4R2","canonical_record":{"source":{"id":"1308.1525","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-07T10:01:02Z","cross_cats_sorted":[],"title_canon_sha256":"f8021e9f3be0fde9fa801f1815ad29539a5083406ea726208e4096d8ee57b964","abstract_canon_sha256":"4c9245f5cf8da177f04c4755105dc38fb8053df2a5f35df8eacec0587403bfe5"},"schema_version":"1.0"},"canonical_sha256":"78a388723a5c104db6fe8741b69d439686b83f23b33415ab230699fd2c27f986","source":{"kind":"arxiv","id":"1308.1525","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1525","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1525v1","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1525","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"PCRYQ4R2LQIE","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PCRYQ4R2LQIE3NX6","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PCRYQ4R2","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PCRYQ4R2LQIE3NX6Q5A3NHKDS2","target":"record","payload":{"canonical_record":{"source":{"id":"1308.1525","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-07T10:01:02Z","cross_cats_sorted":[],"title_canon_sha256":"f8021e9f3be0fde9fa801f1815ad29539a5083406ea726208e4096d8ee57b964","abstract_canon_sha256":"4c9245f5cf8da177f04c4755105dc38fb8053df2a5f35df8eacec0587403bfe5"},"schema_version":"1.0"},"canonical_sha256":"78a388723a5c104db6fe8741b69d439686b83f23b33415ab230699fd2c27f986","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:30.924096Z","signature_b64":"/HDYQccuU6eT1QnoUiPosw4InBTww/wJZek3+QfMgMhFG7qerHvDTglS2N1wVbSTW1kJ9nz50/W2cVeC/djTBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78a388723a5c104db6fe8741b69d439686b83f23b33415ab230699fd2c27f986","last_reissued_at":"2026-05-18T03:16:30.923385Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:30.923385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.1525","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":"2026-05-18T03:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uJVNMWmEtuubSaLd/4C01cc9IqEgQBluoDanTbMsh3Z2S3gmMQz/VfH/vUW5AosZEElvdksHj+8aHcQ8jjY7CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:28:00.709879Z"},"content_sha256":"49b0ce1abb5fa267d281e7652904449a1f685c0c0caf38165c00b8f3252b6df7","schema_version":"1.0","event_id":"sha256:49b0ce1abb5fa267d281e7652904449a1f685c0c0caf38165c00b8f3252b6df7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PCRYQ4R2LQIE3NX6Q5A3NHKDS2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Composite Particles and the Szilard Engine","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"D. Kaszlikowski, T.K. Chuan","submitted_at":"2013-08-07T10:01:02Z","abstract_excerpt":"The Szilard engine is the simplest possible engine, composed only of one or more particles in a box. The box is then immersed in a heat bath and partitioned into two parts by a wall. It is known that in the cold temperature limit, one may extract more work out of elementary boson than out of elementary fermions. In this paper, we consider the amount of work that can be extracted out of a system of composite particles -- particles which are composed of two interacting elementary fermions of different species. We demonstrate that the amount of work extracted is closely tied to the amount of enta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1525","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":"2026-05-18T03:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y5Y+MXF0IDx2B5FAltktX/xM7VTny+7axJ2+mGtgqcfV38DUeW0BOt5PcU1yOuL7MWY2JqR/+velXqEv7fqJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:28:00.710262Z"},"content_sha256":"94c965f7beb2239afc762b8e9c9ceaf491db2408862ab8c174d66bb75ddc5cf7","schema_version":"1.0","event_id":"sha256:94c965f7beb2239afc762b8e9c9ceaf491db2408862ab8c174d66bb75ddc5cf7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/bundle.json","state_url":"https://pith.science/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/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":"2026-05-30T09:28:00Z","links":{"resolver":"https://pith.science/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2","bundle":"https://pith.science/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/bundle.json","state":"https://pith.science/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PCRYQ4R2LQIE3NX6Q5A3NHKDS2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PCRYQ4R2LQIE3NX6Q5A3NHKDS2","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":"4c9245f5cf8da177f04c4755105dc38fb8053df2a5f35df8eacec0587403bfe5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-07T10:01:02Z","title_canon_sha256":"f8021e9f3be0fde9fa801f1815ad29539a5083406ea726208e4096d8ee57b964"},"schema_version":"1.0","source":{"id":"1308.1525","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1525","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1525v1","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1525","created_at":"2026-05-18T03:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"PCRYQ4R2LQIE","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PCRYQ4R2LQIE3NX6","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PCRYQ4R2","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:94c965f7beb2239afc762b8e9c9ceaf491db2408862ab8c174d66bb75ddc5cf7","target":"graph","created_at":"2026-05-18T03:16:30Z","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":"The Szilard engine is the simplest possible engine, composed only of one or more particles in a box. The box is then immersed in a heat bath and partitioned into two parts by a wall. It is known that in the cold temperature limit, one may extract more work out of elementary boson than out of elementary fermions. In this paper, we consider the amount of work that can be extracted out of a system of composite particles -- particles which are composed of two interacting elementary fermions of different species. We demonstrate that the amount of work extracted is closely tied to the amount of enta","authors_text":"D. Kaszlikowski, T.K. Chuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-07T10:01:02Z","title":"Composite Particles and the Szilard Engine"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1525","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":"sha256:49b0ce1abb5fa267d281e7652904449a1f685c0c0caf38165c00b8f3252b6df7","target":"record","created_at":"2026-05-18T03:16:30Z","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":"4c9245f5cf8da177f04c4755105dc38fb8053df2a5f35df8eacec0587403bfe5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-07T10:01:02Z","title_canon_sha256":"f8021e9f3be0fde9fa801f1815ad29539a5083406ea726208e4096d8ee57b964"},"schema_version":"1.0","source":{"id":"1308.1525","kind":"arxiv","version":1}},"canonical_sha256":"78a388723a5c104db6fe8741b69d439686b83f23b33415ab230699fd2c27f986","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78a388723a5c104db6fe8741b69d439686b83f23b33415ab230699fd2c27f986","first_computed_at":"2026-05-18T03:16:30.923385Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:30.923385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/HDYQccuU6eT1QnoUiPosw4InBTww/wJZek3+QfMgMhFG7qerHvDTglS2N1wVbSTW1kJ9nz50/W2cVeC/djTBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:30.924096Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.1525","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49b0ce1abb5fa267d281e7652904449a1f685c0c0caf38165c00b8f3252b6df7","sha256:94c965f7beb2239afc762b8e9c9ceaf491db2408862ab8c174d66bb75ddc5cf7"],"state_sha256":"c84519225b46c101f528cdd9470ca6590bd98e8b4434fe0b71efa1a11d3e9826"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KhCyuPr4pR/BKlRbZRPuJwe9AN79oBudFb2NHGoKt/25/PpR6CeGpH3E5NcnF9eemUGfkNEG4MJGF7PXs2gLAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:28:00.713427Z","bundle_sha256":"852df05ce95103d06fc648d72f94c844c7b36d7e086e11871d7c8835679ba45f"}}