{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:W6I2DKBILXRNFEFCZELMQQNCG3","short_pith_number":"pith:W6I2DKBI","canonical_record":{"source":{"id":"quant-ph/0203044","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2002-03-10T19:32:47Z","cross_cats_sorted":[],"title_canon_sha256":"5b86afa5ae2e5c9f8cb8b4a34f360f8d73a0f9c5508c7c1ae2214c836b7a1e03","abstract_canon_sha256":"9070ed345a93dd12610d3008bac6a93da518cdc2a0b06b751ca6b98483f01da5"},"schema_version":"1.0"},"canonical_sha256":"b791a1a8285de2d290a2c916c841a236e196cfa617fd4385dbf8fdfb96e890f6","source":{"kind":"arxiv","id":"quant-ph/0203044","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0203044","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0203044v2","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0203044","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"W6I2DKBILXRN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"W6I2DKBILXRNFEFC","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"W6I2DKBI","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:W6I2DKBILXRNFEFCZELMQQNCG3","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0203044","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2002-03-10T19:32:47Z","cross_cats_sorted":[],"title_canon_sha256":"5b86afa5ae2e5c9f8cb8b4a34f360f8d73a0f9c5508c7c1ae2214c836b7a1e03","abstract_canon_sha256":"9070ed345a93dd12610d3008bac6a93da518cdc2a0b06b751ca6b98483f01da5"},"schema_version":"1.0"},"canonical_sha256":"b791a1a8285de2d290a2c916c841a236e196cfa617fd4385dbf8fdfb96e890f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:02.069271Z","signature_b64":"1rHhE/PHip4TsCh+CCzqIcJ3AKRbTbRWbHmUtnGfPtwFLNuytLKWES7MhxcxoAvpqDtDhEOwlBLGXpCYdPLpDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b791a1a8285de2d290a2c916c841a236e196cfa617fd4385dbf8fdfb96e890f6","last_reissued_at":"2026-05-18T01:38:02.068687Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:02.068687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0203044","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":"2026-05-18T01:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V7p4P1pUzKpDoQ+u0NlYR2GIwskNna6Ky1+uM+a9aAHIkpbweMXaXFy20ZbQiTzC0ncxeFi629dwfOSGEI1mAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:14:07.452041Z"},"content_sha256":"c12747b5035919d1f1da478ccd8c265e0b7846321dbda49f01184ae4f5b9ab59","schema_version":"1.0","event_id":"sha256:c12747b5035919d1f1da478ccd8c265e0b7846321dbda49f01184ae4f5b9ab59"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:W6I2DKBILXRNFEFCZELMQQNCG3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum repeated games","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A.H. Toor, A. Iqbal","submitted_at":"2002-03-10T19:32:47Z","abstract_excerpt":"In a two-stage repeated classical game of prisoners' dilemma the knowledge that both players will defect in the second stage makes the players to defect in the first stage as well. We find a quantum version of this repeated game where the players decide to cooperate in the first stage while knowing that both will defect in the second."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0203044","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":""},"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":"2026-05-18T01:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7r0qLufCub5jFu1d34PCrDLlV3Vf28LA3E94+S2ZrE1Rsdn3TyV8Chhe0a5MG6y+jtuxq0+pfRFnZtOHXiMeCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:14:07.452763Z"},"content_sha256":"d05d574c05290a9b12e7e28917cb294ef5160edcb490203d265a045b51a5ee88","schema_version":"1.0","event_id":"sha256:d05d574c05290a9b12e7e28917cb294ef5160edcb490203d265a045b51a5ee88"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W6I2DKBILXRNFEFCZELMQQNCG3/bundle.json","state_url":"https://pith.science/pith/W6I2DKBILXRNFEFCZELMQQNCG3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W6I2DKBILXRNFEFCZELMQQNCG3/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":"2026-05-25T20:14:07Z","links":{"resolver":"https://pith.science/pith/W6I2DKBILXRNFEFCZELMQQNCG3","bundle":"https://pith.science/pith/W6I2DKBILXRNFEFCZELMQQNCG3/bundle.json","state":"https://pith.science/pith/W6I2DKBILXRNFEFCZELMQQNCG3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W6I2DKBILXRNFEFCZELMQQNCG3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:W6I2DKBILXRNFEFCZELMQQNCG3","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":"9070ed345a93dd12610d3008bac6a93da518cdc2a0b06b751ca6b98483f01da5","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2002-03-10T19:32:47Z","title_canon_sha256":"5b86afa5ae2e5c9f8cb8b4a34f360f8d73a0f9c5508c7c1ae2214c836b7a1e03"},"schema_version":"1.0","source":{"id":"quant-ph/0203044","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0203044","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0203044v2","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0203044","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"W6I2DKBILXRN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"W6I2DKBILXRNFEFC","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"W6I2DKBI","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:d05d574c05290a9b12e7e28917cb294ef5160edcb490203d265a045b51a5ee88","target":"graph","created_at":"2026-05-18T01:38:02Z","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 a two-stage repeated classical game of prisoners' dilemma the knowledge that both players will defect in the second stage makes the players to defect in the first stage as well. We find a quantum version of this repeated game where the players decide to cooperate in the first stage while knowing that both will defect in the second.","authors_text":"A.H. Toor, A. Iqbal","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2002-03-10T19:32:47Z","title":"Quantum repeated games"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0203044","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:c12747b5035919d1f1da478ccd8c265e0b7846321dbda49f01184ae4f5b9ab59","target":"record","created_at":"2026-05-18T01:38:02Z","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":"9070ed345a93dd12610d3008bac6a93da518cdc2a0b06b751ca6b98483f01da5","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2002-03-10T19:32:47Z","title_canon_sha256":"5b86afa5ae2e5c9f8cb8b4a34f360f8d73a0f9c5508c7c1ae2214c836b7a1e03"},"schema_version":"1.0","source":{"id":"quant-ph/0203044","kind":"arxiv","version":2}},"canonical_sha256":"b791a1a8285de2d290a2c916c841a236e196cfa617fd4385dbf8fdfb96e890f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b791a1a8285de2d290a2c916c841a236e196cfa617fd4385dbf8fdfb96e890f6","first_computed_at":"2026-05-18T01:38:02.068687Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:02.068687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1rHhE/PHip4TsCh+CCzqIcJ3AKRbTbRWbHmUtnGfPtwFLNuytLKWES7MhxcxoAvpqDtDhEOwlBLGXpCYdPLpDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:02.069271Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0203044","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c12747b5035919d1f1da478ccd8c265e0b7846321dbda49f01184ae4f5b9ab59","sha256:d05d574c05290a9b12e7e28917cb294ef5160edcb490203d265a045b51a5ee88"],"state_sha256":"262f90002a65259b58b30bda600bdaafb817d2d3ac49566dcfbf9c803bf61209"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LF2fFLC58n9xCuF98FHSJCdwd/EsxDYaj1hvj7OApHCvpT0znZjlCaghDDSYvMb/nBxEefebXcHTU1zyHDX1CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:14:07.455401Z","bundle_sha256":"4bdf030708c429d25356d0dbc30cfff3f5c4a42d43798a9e63b0bfeb2fabfd70"}}