{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4M6C2KLSLDQA7RQZDEJBTBZL33","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":"981926b41c2caac8771eb9ee3dcfa25ca041555718747f7b3c5e47ad9444a9a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-10T19:32:32Z","title_canon_sha256":"a96a99fbdb5127b4ab43917a2a07acf9d46af8a21add9713b69ff63e00c37ab3"},"schema_version":"1.0","source":{"id":"1310.2927","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2927","created_at":"2026-05-18T00:26:21Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2927v5","created_at":"2026-05-18T00:26:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2927","created_at":"2026-05-18T00:26:21Z"},{"alias_kind":"pith_short_12","alias_value":"4M6C2KLSLDQA","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4M6C2KLSLDQA7RQZ","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4M6C2KLS","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:f6a3b50ccd74b7e1fc5da7e6cd3d75f1adbf23a58c8f22bde16aae2f39809eac","target":"graph","created_at":"2026-05-18T00:26:21Z","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":"Modern programming relies on our ability to treat preprogrammed functions as black boxes - we can invoke them as subroutines without knowing their physical implementation. Here we show it is generally impossible to execute an unknown quantum subroutine. This, as a special case, forbids applying black-box subroutines conditioned on an ancillary qubit. We explore how this limits many quantum algorithms - forcing their circuit implementation to be individually tailored to specific inputs and inducing failure if these inputs are not known in advance. We present a method to avoid this situation for","authors_text":"Jayne Thompson, Kavan Modi, Mile Gu, Vlatko Vedral","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-10T19:32:32Z","title":"Quantum Computing with black-box Subroutines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2927","kind":"arxiv","version":5},"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:d59a1e45fa91decfb7833722a88f99e59f1ffcb8f756456f8020ee89a40187d6","target":"record","created_at":"2026-05-18T00:26:21Z","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":"981926b41c2caac8771eb9ee3dcfa25ca041555718747f7b3c5e47ad9444a9a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-10T19:32:32Z","title_canon_sha256":"a96a99fbdb5127b4ab43917a2a07acf9d46af8a21add9713b69ff63e00c37ab3"},"schema_version":"1.0","source":{"id":"1310.2927","kind":"arxiv","version":5}},"canonical_sha256":"e33c2d297258e00fc619191219872bded45c15abf212002cf124aba7c7368587","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e33c2d297258e00fc619191219872bded45c15abf212002cf124aba7c7368587","first_computed_at":"2026-05-18T00:26:21.566560Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:21.566560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NsvapdtVC0a+iDviLKzIJa0jUFoqyCWLuZ+ygGn87xIUkPss0nr4L8UwuTSxk3Zvyd6esu7ytMjFgUHFgSNmAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:21.567293Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.2927","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d59a1e45fa91decfb7833722a88f99e59f1ffcb8f756456f8020ee89a40187d6","sha256:f6a3b50ccd74b7e1fc5da7e6cd3d75f1adbf23a58c8f22bde16aae2f39809eac"],"state_sha256":"3af315337a33716e837d92e1e06e5e6c1c60395a4b7acea164c34525cfce8ae7"}