{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:CJ4MYBZPTDT3FMMIGIDRUMBP3Y","short_pith_number":"pith:CJ4MYBZP","canonical_record":{"source":{"id":"2204.00015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-31T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"4d591c7bc5cfb92621e3b2d85c18e43401cdb487952a8b4d59db32fc6b1f8424","abstract_canon_sha256":"07f44b3bfbc25b7be16679f398a11ce6ceb14aa2b13623ad84bf93f819978b8a"},"schema_version":"1.0"},"canonical_sha256":"1278cc072f98e7b2b18832071a302fde29c0253da64e010c673e6c737bb4870f","source":{"kind":"arxiv","id":"2204.00015","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.00015","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"arxiv_version","alias_value":"2204.00015v2","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.00015","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_12","alias_value":"CJ4MYBZPTDT3","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"CJ4MYBZPTDT3FMMI","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"CJ4MYBZP","created_at":"2026-07-05T05:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:CJ4MYBZPTDT3FMMIGIDRUMBP3Y","target":"record","payload":{"canonical_record":{"source":{"id":"2204.00015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-31T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"4d591c7bc5cfb92621e3b2d85c18e43401cdb487952a8b4d59db32fc6b1f8424","abstract_canon_sha256":"07f44b3bfbc25b7be16679f398a11ce6ceb14aa2b13623ad84bf93f819978b8a"},"schema_version":"1.0"},"canonical_sha256":"1278cc072f98e7b2b18832071a302fde29c0253da64e010c673e6c737bb4870f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:27:59.051213Z","signature_b64":"+4oVABsnUgzt0XT2Ty4ACNpn5PAWHJ0ujPqOPWy5/lEWPCAO+HlNMX2Mzr/LLiCzRp6AuRt44Xt4AkPjPNBYBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1278cc072f98e7b2b18832071a302fde29c0253da64e010c673e6c737bb4870f","last_reissued_at":"2026-07-05T05:27:59.050763Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:27:59.050763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.00015","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":"2026-07-05T05:27:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NR1sjf+QJU9haBDpxCQOHwo0WXj9YA6V/LKPkz6dBi7N+B/gTV9SFrUgCCBhHeS3sO/ZUsuK66NiL4z80GK7Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T13:02:43.063605Z"},"content_sha256":"dd10f834d7a7fa845d3cb839c18130b7d217579c68fc01a2e7260b62bd61f1f6","schema_version":"1.0","event_id":"sha256:dd10f834d7a7fa845d3cb839c18130b7d217579c68fc01a2e7260b62bd61f1f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:CJ4MYBZPTDT3FMMIGIDRUMBP3Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring magic on a quantum processor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alioscia Hamma, Lorenzo Leone, Salvatore F.E. Oliviero, Seth Lloyd","submitted_at":"2022-03-31T18:00:01Z","abstract_excerpt":"Magic states are the resource that allows quantum computers to attain an advantage over classical computers. This resource consists in the deviation from a property called stabilizerness which in turn implies that stabilizer circuits can be efficiently simulated on a classical computer. Without magic, no quantum computer can do anything that a classical computer cannot do. Given the importance of magic for quantum computation, it would be useful to have a method for measuring the amount of magic in a quantum state. In this work, we propose and experimentally demonstrate a protocol for measurin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.00015","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/2204.00015/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":"2026-07-05T05:27:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Ud4o9hu1xpWMjU5YkcG6FoyTeBLIB0JcJQsz7yZLU6o3PDZpbG4qQoGGnz10GPdYQi5Zw/nC57RJ8gCEIJtAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T13:02:43.064138Z"},"content_sha256":"037af3f0e5925f27f9683d726a2884baef8dd56355f594d98922764a8a04391e","schema_version":"1.0","event_id":"sha256:037af3f0e5925f27f9683d726a2884baef8dd56355f594d98922764a8a04391e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/bundle.json","state_url":"https://pith.science/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/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":"2026-08-15T13:02:43Z","links":{"resolver":"https://pith.science/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y","bundle":"https://pith.science/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/bundle.json","state":"https://pith.science/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CJ4MYBZPTDT3FMMIGIDRUMBP3Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:CJ4MYBZPTDT3FMMIGIDRUMBP3Y","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":"07f44b3bfbc25b7be16679f398a11ce6ceb14aa2b13623ad84bf93f819978b8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-31T18:00:01Z","title_canon_sha256":"4d591c7bc5cfb92621e3b2d85c18e43401cdb487952a8b4d59db32fc6b1f8424"},"schema_version":"1.0","source":{"id":"2204.00015","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.00015","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"arxiv_version","alias_value":"2204.00015v2","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.00015","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_12","alias_value":"CJ4MYBZPTDT3","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"CJ4MYBZPTDT3FMMI","created_at":"2026-07-05T05:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"CJ4MYBZP","created_at":"2026-07-05T05:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:037af3f0e5925f27f9683d726a2884baef8dd56355f594d98922764a8a04391e","target":"graph","created_at":"2026-07-05T05:27:59Z","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/2204.00015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magic states are the resource that allows quantum computers to attain an advantage over classical computers. This resource consists in the deviation from a property called stabilizerness which in turn implies that stabilizer circuits can be efficiently simulated on a classical computer. Without magic, no quantum computer can do anything that a classical computer cannot do. Given the importance of magic for quantum computation, it would be useful to have a method for measuring the amount of magic in a quantum state. In this work, we propose and experimentally demonstrate a protocol for measurin","authors_text":"Alioscia Hamma, Lorenzo Leone, Salvatore F.E. Oliviero, Seth Lloyd","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-31T18:00:01Z","title":"Measuring magic on a quantum processor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.00015","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:dd10f834d7a7fa845d3cb839c18130b7d217579c68fc01a2e7260b62bd61f1f6","target":"record","created_at":"2026-07-05T05:27:59Z","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":"07f44b3bfbc25b7be16679f398a11ce6ceb14aa2b13623ad84bf93f819978b8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-31T18:00:01Z","title_canon_sha256":"4d591c7bc5cfb92621e3b2d85c18e43401cdb487952a8b4d59db32fc6b1f8424"},"schema_version":"1.0","source":{"id":"2204.00015","kind":"arxiv","version":2}},"canonical_sha256":"1278cc072f98e7b2b18832071a302fde29c0253da64e010c673e6c737bb4870f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1278cc072f98e7b2b18832071a302fde29c0253da64e010c673e6c737bb4870f","first_computed_at":"2026-07-05T05:27:59.050763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:27:59.050763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+4oVABsnUgzt0XT2Ty4ACNpn5PAWHJ0ujPqOPWy5/lEWPCAO+HlNMX2Mzr/LLiCzRp6AuRt44Xt4AkPjPNBYBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:27:59.051213Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.00015","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd10f834d7a7fa845d3cb839c18130b7d217579c68fc01a2e7260b62bd61f1f6","sha256:037af3f0e5925f27f9683d726a2884baef8dd56355f594d98922764a8a04391e"],"state_sha256":"cd8bbf0ce4a72512efcf3d5283463d04b36257d8b03e81648241fd1548ec06bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LobopDcXlMcH0UiiXxhHH6w5WSTXErP3E5NS8awPlMEaXbTKMIE4iSpyraHsHnn8gw1Sfp+rRFj3/KqFR/4SBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T13:02:43.070232Z","bundle_sha256":"11411a34cff0c2fc87b6534423d7c13f847baab1ef2a237e9ba74fc903e8adbd"}}