{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:CTRYC74R6N6PSMAZUBH4MZFEMZ","short_pith_number":"pith:CTRYC74R","canonical_record":{"source":{"id":"quant-ph/0008015","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-03T11:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"d3c0a07c54b48e96fa3144945f11c47b90b229e80ffc5f2b16e69d8f35d4332e","abstract_canon_sha256":"2782cc3ea149fd14f807881d11b1a64f2b45d87732eb90ee9c74c1b0bbdb49c7"},"schema_version":"1.0"},"canonical_sha256":"14e3817f91f37cf93019a04fc664a4664061aca53ef36b8428fa9d728e8d8680","source":{"kind":"arxiv","id":"quant-ph/0008015","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0008015","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0008015v2","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0008015","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_12","alias_value":"CTRYC74R6N6P","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_16","alias_value":"CTRYC74R6N6PSMAZ","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_8","alias_value":"CTRYC74R","created_at":"2026-07-04T14:45:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:CTRYC74R6N6PSMAZUBH4MZFEMZ","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0008015","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-03T11:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"d3c0a07c54b48e96fa3144945f11c47b90b229e80ffc5f2b16e69d8f35d4332e","abstract_canon_sha256":"2782cc3ea149fd14f807881d11b1a64f2b45d87732eb90ee9c74c1b0bbdb49c7"},"schema_version":"1.0"},"canonical_sha256":"14e3817f91f37cf93019a04fc664a4664061aca53ef36b8428fa9d728e8d8680","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:45:30.681699Z","signature_b64":"9D2TN8VM25WQn0SVJK5HtM3nYGzd1oeWWNZvPSCdiRM2uPvXgJM2xSubcpUNZW6RCGrisa4ilg/pCXb1LGdHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14e3817f91f37cf93019a04fc664a4664061aca53ef36b8428fa9d728e8d8680","last_reissued_at":"2026-07-04T14:45:30.681308Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:45:30.681308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0008015","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":"2026-07-04T14:45:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o8omMiwJHk2vwgtmR3kBmqe/3LcyMuhoari3vTCRuUe/b5BQdh1bLgEvI2++LwYCzEGepjeXYR/VKYp6BsNjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:36:54.087879Z"},"content_sha256":"1b9134253a89d4642f1b566e6e2c8e9d58439d6691f14baf4f00795cabbb0f68","schema_version":"1.0","event_id":"sha256:1b9134253a89d4642f1b566e6e2c8e9d58439d6691f14baf4f00795cabbb0f68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:CTRYC74R6N6PSMAZUBH4MZFEMZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Problem of Programming Quantum Computers","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Anthony Hams, Hans De Raedt, Keiji Saito, Kristel Michielsen, Seiji Miyashita","submitted_at":"2000-08-03T11:33:57Z","abstract_excerpt":"We study effects of the physical realization of quantum computers on their logical operation. Through simulation of physical models of quantum computer hardware, we analyse the difficulties that are encountered in programming physical implementations of quantum computers. We discuss the origin of the instabilities of quantum algorithms and explore physical mechanisms to enlarge the region(s) of stable operation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0008015","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0008015/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T14:45:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mIAcRJffUEsZG0E3URc1sBmdGn+dxSBaS32c0z0RXcYB4iALeRFyy/EdAiOg5yKnYB9EZ1BOtFlo2EPnOZ78AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:36:54.088386Z"},"content_sha256":"105dd36c9a4b7779e014d3d8f2d2c5d224334b522120a4984e952bfa080c3add","schema_version":"1.0","event_id":"sha256:105dd36c9a4b7779e014d3d8f2d2c5d224334b522120a4984e952bfa080c3add"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/bundle.json","state_url":"https://pith.science/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/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":"2026-08-05T07:36:54Z","links":{"resolver":"https://pith.science/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ","bundle":"https://pith.science/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/bundle.json","state":"https://pith.science/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CTRYC74R6N6PSMAZUBH4MZFEMZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:CTRYC74R6N6PSMAZUBH4MZFEMZ","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":"2782cc3ea149fd14f807881d11b1a64f2b45d87732eb90ee9c74c1b0bbdb49c7","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-03T11:33:57Z","title_canon_sha256":"d3c0a07c54b48e96fa3144945f11c47b90b229e80ffc5f2b16e69d8f35d4332e"},"schema_version":"1.0","source":{"id":"quant-ph/0008015","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0008015","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0008015v2","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0008015","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_12","alias_value":"CTRYC74R6N6P","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_16","alias_value":"CTRYC74R6N6PSMAZ","created_at":"2026-07-04T14:45:30Z"},{"alias_kind":"pith_short_8","alias_value":"CTRYC74R","created_at":"2026-07-04T14:45:30Z"}],"graph_snapshots":[{"event_id":"sha256:105dd36c9a4b7779e014d3d8f2d2c5d224334b522120a4984e952bfa080c3add","target":"graph","created_at":"2026-07-04T14:45:30Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/quant-ph/0008015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study effects of the physical realization of quantum computers on their logical operation. Through simulation of physical models of quantum computer hardware, we analyse the difficulties that are encountered in programming physical implementations of quantum computers. We discuss the origin of the instabilities of quantum algorithms and explore physical mechanisms to enlarge the region(s) of stable operation.","authors_text":"Anthony Hams, Hans De Raedt, Keiji Saito, Kristel Michielsen, Seiji Miyashita","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2000-08-03T11:33:57Z","title":"On the Problem of Programming Quantum Computers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0008015","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":"sha256:1b9134253a89d4642f1b566e6e2c8e9d58439d6691f14baf4f00795cabbb0f68","target":"record","created_at":"2026-07-04T14:45:30Z","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":"2782cc3ea149fd14f807881d11b1a64f2b45d87732eb90ee9c74c1b0bbdb49c7","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-03T11:33:57Z","title_canon_sha256":"d3c0a07c54b48e96fa3144945f11c47b90b229e80ffc5f2b16e69d8f35d4332e"},"schema_version":"1.0","source":{"id":"quant-ph/0008015","kind":"arxiv","version":2}},"canonical_sha256":"14e3817f91f37cf93019a04fc664a4664061aca53ef36b8428fa9d728e8d8680","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14e3817f91f37cf93019a04fc664a4664061aca53ef36b8428fa9d728e8d8680","first_computed_at":"2026-07-04T14:45:30.681308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:45:30.681308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9D2TN8VM25WQn0SVJK5HtM3nYGzd1oeWWNZvPSCdiRM2uPvXgJM2xSubcpUNZW6RCGrisa4ilg/pCXb1LGdHDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:45:30.681699Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0008015","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b9134253a89d4642f1b566e6e2c8e9d58439d6691f14baf4f00795cabbb0f68","sha256:105dd36c9a4b7779e014d3d8f2d2c5d224334b522120a4984e952bfa080c3add"],"state_sha256":"0b0274b6ebd7cae603fb06159c1693cfbe523d8b520781311b81209c5e462e0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M1Q4CWt+8TgwywIFIeojDANvaWrreu0SMz0BkEWo3mVYL5Fp/fctOQpfJpk8TtoiYlh6YExhsADB+SyUkHU4BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:36:54.093484Z","bundle_sha256":"0bbb3fa4f3401b959c60de9cb031d19fc75211609fcaa9325d007919d8535998"}}