{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:UQJYHI72QVWHC6F2NW2SFBGBT2","short_pith_number":"pith:UQJYHI72","canonical_record":{"source":{"id":"2204.10061","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-21T12:50:47Z","cross_cats_sorted":[],"title_canon_sha256":"89167d2923f8bcf38ff0245cc5234833b6e11de2375253d19d10003f64d4f18e","abstract_canon_sha256":"2059396683ba65419c9d49fbd23ec7afbb704a22ff6295b7b6805e5bec53ac81"},"schema_version":"1.0"},"canonical_sha256":"a41383a3fa856c7178ba6db52284c19ea70eb56e2e2403b1d18484d728108bfe","source":{"kind":"arxiv","id":"2204.10061","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.10061","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"arxiv_version","alias_value":"2204.10061v4","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.10061","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_12","alias_value":"UQJYHI72QVWH","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_16","alias_value":"UQJYHI72QVWHC6F2","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_8","alias_value":"UQJYHI72","created_at":"2026-07-05T05:36:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:UQJYHI72QVWHC6F2NW2SFBGBT2","target":"record","payload":{"canonical_record":{"source":{"id":"2204.10061","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-21T12:50:47Z","cross_cats_sorted":[],"title_canon_sha256":"89167d2923f8bcf38ff0245cc5234833b6e11de2375253d19d10003f64d4f18e","abstract_canon_sha256":"2059396683ba65419c9d49fbd23ec7afbb704a22ff6295b7b6805e5bec53ac81"},"schema_version":"1.0"},"canonical_sha256":"a41383a3fa856c7178ba6db52284c19ea70eb56e2e2403b1d18484d728108bfe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:36:30.161539Z","signature_b64":"YK7JSy0gwAuXdFzGpODllfznqkC5WyieZoDRo8FFsfR7H26DxNd0YCNAPFa0pqbI9fmJiPeas2UvT1c6bXh7CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a41383a3fa856c7178ba6db52284c19ea70eb56e2e2403b1d18484d728108bfe","last_reissued_at":"2026-07-05T05:36:30.161059Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:36:30.161059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.10061","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:36:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D/7jbUPOvYdkQdY/gB1jlF516vA0CU8ZjepT2UkvOChuHzCd4s0ZUUf8q+8zEHzIwAchZQupQ0kO69SgCFImBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T16:28:39.162306Z"},"content_sha256":"0228db9523f347f635e1a87612ef387f59662de36c261491fcc3355ea493a324","schema_version":"1.0","event_id":"sha256:0228db9523f347f635e1a87612ef387f59662de36c261491fcc3355ea493a324"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:UQJYHI72QVWHC6F2NW2SFBGBT2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scalable measures of magic resource for quantum computers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"M. S. Kim, Tobias Haug","submitted_at":"2022-04-21T12:50:47Z","abstract_excerpt":"Non-stabilizerness or magic resource characterizes the amount of non-Clifford operations needed to prepare quantum states. It is a crucial resource for quantum computing and a necessary condition for quantum advantage. However, quantifying magic resource beyond a few qubits has been a major challenge. Here, we introduce efficient measures of magic resource for pure quantum states with a sampling cost that is independent of the number of qubits. Our method uses Bell measurements over two copies of a state, which we implement in experiment together with a cost-free error mitigation scheme. We sh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.10061","kind":"arxiv","version":4},"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/2204.10061/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":"2026-07-05T05:36:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aBhE8iGusFH5tDhrKlC9/DitC25D4fiIv31MqX+d+to0y1lBf3vekjg4WjxnExQGYr0jCQQ/eiO9A6EM0pfsCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T16:28:39.162703Z"},"content_sha256":"72d170fe4487251872542b47896fef77cc1d90779f78f838a983eb634163284e","schema_version":"1.0","event_id":"sha256:72d170fe4487251872542b47896fef77cc1d90779f78f838a983eb634163284e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/bundle.json","state_url":"https://pith.science/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/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":"2026-08-02T16:28:39Z","links":{"resolver":"https://pith.science/pith/UQJYHI72QVWHC6F2NW2SFBGBT2","bundle":"https://pith.science/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/bundle.json","state":"https://pith.science/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UQJYHI72QVWHC6F2NW2SFBGBT2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:UQJYHI72QVWHC6F2NW2SFBGBT2","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":"2059396683ba65419c9d49fbd23ec7afbb704a22ff6295b7b6805e5bec53ac81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-21T12:50:47Z","title_canon_sha256":"89167d2923f8bcf38ff0245cc5234833b6e11de2375253d19d10003f64d4f18e"},"schema_version":"1.0","source":{"id":"2204.10061","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.10061","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"arxiv_version","alias_value":"2204.10061v4","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.10061","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_12","alias_value":"UQJYHI72QVWH","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_16","alias_value":"UQJYHI72QVWHC6F2","created_at":"2026-07-05T05:36:30Z"},{"alias_kind":"pith_short_8","alias_value":"UQJYHI72","created_at":"2026-07-05T05:36:30Z"}],"graph_snapshots":[{"event_id":"sha256:72d170fe4487251872542b47896fef77cc1d90779f78f838a983eb634163284e","target":"graph","created_at":"2026-07-05T05:36:30Z","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/2204.10061/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Non-stabilizerness or magic resource characterizes the amount of non-Clifford operations needed to prepare quantum states. It is a crucial resource for quantum computing and a necessary condition for quantum advantage. However, quantifying magic resource beyond a few qubits has been a major challenge. Here, we introduce efficient measures of magic resource for pure quantum states with a sampling cost that is independent of the number of qubits. Our method uses Bell measurements over two copies of a state, which we implement in experiment together with a cost-free error mitigation scheme. We sh","authors_text":"M. S. Kim, Tobias Haug","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-21T12:50:47Z","title":"Scalable measures of magic resource for quantum computers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.10061","kind":"arxiv","version":4},"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":"sha256:0228db9523f347f635e1a87612ef387f59662de36c261491fcc3355ea493a324","target":"record","created_at":"2026-07-05T05:36:30Z","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":"2059396683ba65419c9d49fbd23ec7afbb704a22ff6295b7b6805e5bec53ac81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-21T12:50:47Z","title_canon_sha256":"89167d2923f8bcf38ff0245cc5234833b6e11de2375253d19d10003f64d4f18e"},"schema_version":"1.0","source":{"id":"2204.10061","kind":"arxiv","version":4}},"canonical_sha256":"a41383a3fa856c7178ba6db52284c19ea70eb56e2e2403b1d18484d728108bfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a41383a3fa856c7178ba6db52284c19ea70eb56e2e2403b1d18484d728108bfe","first_computed_at":"2026-07-05T05:36:30.161059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:36:30.161059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YK7JSy0gwAuXdFzGpODllfznqkC5WyieZoDRo8FFsfR7H26DxNd0YCNAPFa0pqbI9fmJiPeas2UvT1c6bXh7CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:36:30.161539Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.10061","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0228db9523f347f635e1a87612ef387f59662de36c261491fcc3355ea493a324","sha256:72d170fe4487251872542b47896fef77cc1d90779f78f838a983eb634163284e"],"state_sha256":"71d354ab5a06295cea892a1d86fead5f7473ab9fe4f5d7582b9234e59d30c225"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jW9J8EutOCLnE91uB8OQiYvzGhtQ1LeJYxjjXjGhiZNlPD0azpH+s0p5NpxLZWsgEUwtKtfJXdVDyVnh9JX1CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T16:28:39.165432Z","bundle_sha256":"611909bce1359e1a48bbef38c2fa4e764a51d556cf0d20596c19d7117a02593f"}}