{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TDHYLGX77SOYEGFF6MFMNM24YB","short_pith_number":"pith:TDHYLGX7","canonical_record":{"source":{"id":"1708.00054","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-31T20:09:09Z","cross_cats_sorted":[],"title_canon_sha256":"3efeebf4d6cc1074d5e691fb1a530815c5a2fc7e1faf84c6a30a4d7f195add08","abstract_canon_sha256":"2763269900482a13c0cbcb68b76fb00602dacd74aab5c587e4066f2915a38f90"},"schema_version":"1.0"},"canonical_sha256":"98cf859afffc9d8218a5f30ac6b35cc060ff741632c38370ceec95e42e25b44b","source":{"kind":"arxiv","id":"1708.00054","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00054","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00054v1","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00054","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"pith_short_12","alias_value":"TDHYLGX77SOY","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TDHYLGX77SOYEGFF","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TDHYLGX7","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TDHYLGX77SOYEGFF6MFMNM24YB","target":"record","payload":{"canonical_record":{"source":{"id":"1708.00054","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-31T20:09:09Z","cross_cats_sorted":[],"title_canon_sha256":"3efeebf4d6cc1074d5e691fb1a530815c5a2fc7e1faf84c6a30a4d7f195add08","abstract_canon_sha256":"2763269900482a13c0cbcb68b76fb00602dacd74aab5c587e4066f2915a38f90"},"schema_version":"1.0"},"canonical_sha256":"98cf859afffc9d8218a5f30ac6b35cc060ff741632c38370ceec95e42e25b44b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:06.156566Z","signature_b64":"G2pVrgawCaMa16WClRTfAD6Mgm8k2vrCYDdVQQ7KXpsG1x7yyxG4h0PbTL13dgF+QDb1R83jNL0z1q3X2BKlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98cf859afffc9d8218a5f30ac6b35cc060ff741632c38370ceec95e42e25b44b","last_reissued_at":"2026-05-18T00:39:06.155779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:06.155779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.00054","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":"2026-05-18T00:39:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AU0jMOrmfZhKkJEOgEeM2ICASwEoGhm/w7q0hdpiBGtCK3r6AnV282GOy2YYigNL0X1v9iFSHIn6ejufy0OUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T16:04:56.534526Z"},"content_sha256":"f84099c4b1429b8f2fccb20414d308102e3d77d7d42946cfe0ae2d24b64480db","schema_version":"1.0","event_id":"sha256:f84099c4b1429b8f2fccb20414d308102e3d77d7d42946cfe0ae2d24b64480db"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TDHYLGX77SOYEGFF6MFMNM24YB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A slightly smaller surface code S gate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Austin Fowler, Craig Gidney","submitted_at":"2017-07-31T20:09:09Z","abstract_excerpt":"We cut the volume of surface code S gates by 25% by omitting a Hadamard gate."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00054","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":"2026-05-18T00:39:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t7gVMewdNP/pkbq/gBUx8cRw1KlI1HKK/KaioUNx53LHKdwg1kDTYeUrWJ/J+JXiKOkdDy9ZJMKSCReGWEI1DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T16:04:56.534928Z"},"content_sha256":"18fabd9d12842a6ba9036e17c7120f57c1f46667d4568ee753063a732e9ed03d","schema_version":"1.0","event_id":"sha256:18fabd9d12842a6ba9036e17c7120f57c1f46667d4568ee753063a732e9ed03d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TDHYLGX77SOYEGFF6MFMNM24YB/bundle.json","state_url":"https://pith.science/pith/TDHYLGX77SOYEGFF6MFMNM24YB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TDHYLGX77SOYEGFF6MFMNM24YB/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":"2026-06-05T16:04:56Z","links":{"resolver":"https://pith.science/pith/TDHYLGX77SOYEGFF6MFMNM24YB","bundle":"https://pith.science/pith/TDHYLGX77SOYEGFF6MFMNM24YB/bundle.json","state":"https://pith.science/pith/TDHYLGX77SOYEGFF6MFMNM24YB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TDHYLGX77SOYEGFF6MFMNM24YB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TDHYLGX77SOYEGFF6MFMNM24YB","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":"2763269900482a13c0cbcb68b76fb00602dacd74aab5c587e4066f2915a38f90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-31T20:09:09Z","title_canon_sha256":"3efeebf4d6cc1074d5e691fb1a530815c5a2fc7e1faf84c6a30a4d7f195add08"},"schema_version":"1.0","source":{"id":"1708.00054","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00054","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00054v1","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00054","created_at":"2026-05-18T00:39:06Z"},{"alias_kind":"pith_short_12","alias_value":"TDHYLGX77SOY","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TDHYLGX77SOYEGFF","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TDHYLGX7","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:18fabd9d12842a6ba9036e17c7120f57c1f46667d4568ee753063a732e9ed03d","target":"graph","created_at":"2026-05-18T00:39:06Z","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":"We cut the volume of surface code S gates by 25% by omitting a Hadamard gate.","authors_text":"Austin Fowler, Craig Gidney","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-31T20:09:09Z","title":"A slightly smaller surface code S gate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00054","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:f84099c4b1429b8f2fccb20414d308102e3d77d7d42946cfe0ae2d24b64480db","target":"record","created_at":"2026-05-18T00:39:06Z","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":"2763269900482a13c0cbcb68b76fb00602dacd74aab5c587e4066f2915a38f90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-31T20:09:09Z","title_canon_sha256":"3efeebf4d6cc1074d5e691fb1a530815c5a2fc7e1faf84c6a30a4d7f195add08"},"schema_version":"1.0","source":{"id":"1708.00054","kind":"arxiv","version":1}},"canonical_sha256":"98cf859afffc9d8218a5f30ac6b35cc060ff741632c38370ceec95e42e25b44b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98cf859afffc9d8218a5f30ac6b35cc060ff741632c38370ceec95e42e25b44b","first_computed_at":"2026-05-18T00:39:06.155779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:06.155779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G2pVrgawCaMa16WClRTfAD6Mgm8k2vrCYDdVQQ7KXpsG1x7yyxG4h0PbTL13dgF+QDb1R83jNL0z1q3X2BKlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:06.156566Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.00054","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f84099c4b1429b8f2fccb20414d308102e3d77d7d42946cfe0ae2d24b64480db","sha256:18fabd9d12842a6ba9036e17c7120f57c1f46667d4568ee753063a732e9ed03d"],"state_sha256":"809c25f0be4f6b3b223d4d92ff382ac513f28094669f6cfb967879efeccdd3e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SKOnV+8JNuQl1hBwZGX29eJcJnCK/hlKLHVxhTJ49gbppEEtFyujUcjAM7j/Gw4ISV39OjQV2wzcyFeIMkdWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T16:04:56.536896Z","bundle_sha256":"543877cb4d7824eac702a71b7f2e46c78b1b245add5949d7ebfe7a23869b24f9"}}