{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TKAEL3KCGYGMTHVOWOAZEXJDZI","short_pith_number":"pith:TKAEL3KC","canonical_record":{"source":{"id":"1610.04464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-10-14T13:57:57Z","cross_cats_sorted":[],"title_canon_sha256":"41962a821ea84dd2886a52e33938c5fe16b95153bc661f86cff1b07f02f1cce7","abstract_canon_sha256":"5f325652d0b43d2e154e01af7c28b1cfc3a7b59d3fecf280d661be9d926a6c04"},"schema_version":"1.0"},"canonical_sha256":"9a8045ed42360cc99eaeb381925d23ca03a8c0ad6940c7291db5df536a075fdb","source":{"kind":"arxiv","id":"1610.04464","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04464","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04464v1","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04464","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"pith_short_12","alias_value":"TKAEL3KCGYGM","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TKAEL3KCGYGMTHVO","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TKAEL3KC","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TKAEL3KCGYGMTHVOWOAZEXJDZI","target":"record","payload":{"canonical_record":{"source":{"id":"1610.04464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-10-14T13:57:57Z","cross_cats_sorted":[],"title_canon_sha256":"41962a821ea84dd2886a52e33938c5fe16b95153bc661f86cff1b07f02f1cce7","abstract_canon_sha256":"5f325652d0b43d2e154e01af7c28b1cfc3a7b59d3fecf280d661be9d926a6c04"},"schema_version":"1.0"},"canonical_sha256":"9a8045ed42360cc99eaeb381925d23ca03a8c0ad6940c7291db5df536a075fdb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:15.109515Z","signature_b64":"ntnr+vPxpnztMjqj/ivOaUld7+ERXV8xpHlp0BSkyX40hN3XCdctdtjjSKkO0vgvN6ZOVpHJ+1kZ4cJ5l8KqAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a8045ed42360cc99eaeb381925d23ca03a8c0ad6940c7291db5df536a075fdb","last_reissued_at":"2026-05-18T01:02:15.108826Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:15.108826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.04464","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":"2026-05-18T01:02:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ITgXVyj34GJMJYkUi9Tcdr/xX9p7pSbheBoB+EhnSdnV8ZtzzZ58Sosh9Uzgrq/NixV6v0ROsF0fWoN41fa0CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:31:01.259775Z"},"content_sha256":"ad2642486da430c0d77fa0904b16eb6b9ed8cefd1ce977dbdba62011169f0e92","schema_version":"1.0","event_id":"sha256:ad2642486da430c0d77fa0904b16eb6b9ed8cefd1ce977dbdba62011169f0e92"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TKAEL3KCGYGMTHVOWOAZEXJDZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental weak measurement of two non-commuting observables","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Anthony Martin, Gilles P\\\"utz, Nicolas Gisin, Tomer Barnea","submitted_at":"2016-10-14T13:57:57Z","abstract_excerpt":"The fact that not all quantum observables are jointly measurable is one of the major differences between quantum and classical theory. In the former, non-commuting observables can only be simultaneously measured with limited precision. We report on an experimental implementation of such a simultaneous measurement of two non-commuting observables based on the framework of weak von Neumann measurements. We use a photonic setup where the polarisation degree of freedom acts as the system and the two components of the transversal position correspond to the pointers of the measurement apparatuses. I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04464","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":"2026-05-18T01:02:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ryj1Km4/K3ttFt/3lhFI4yOaBjwjzd6tpiqQ10LlZgjYHjER+lasbFG2Nwh0X51SSc21+zMFjPzcAM1iUeiwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:31:01.260120Z"},"content_sha256":"1b936d933ec146c9a2662377337e36a7a59664f7a6d28e955af6f063f7e19622","schema_version":"1.0","event_id":"sha256:1b936d933ec146c9a2662377337e36a7a59664f7a6d28e955af6f063f7e19622"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/bundle.json","state_url":"https://pith.science/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/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":"2026-06-02T06:31:01Z","links":{"resolver":"https://pith.science/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI","bundle":"https://pith.science/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/bundle.json","state":"https://pith.science/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TKAEL3KCGYGMTHVOWOAZEXJDZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TKAEL3KCGYGMTHVOWOAZEXJDZI","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":"5f325652d0b43d2e154e01af7c28b1cfc3a7b59d3fecf280d661be9d926a6c04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-10-14T13:57:57Z","title_canon_sha256":"41962a821ea84dd2886a52e33938c5fe16b95153bc661f86cff1b07f02f1cce7"},"schema_version":"1.0","source":{"id":"1610.04464","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04464","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04464v1","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04464","created_at":"2026-05-18T01:02:15Z"},{"alias_kind":"pith_short_12","alias_value":"TKAEL3KCGYGM","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TKAEL3KCGYGMTHVO","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TKAEL3KC","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:1b936d933ec146c9a2662377337e36a7a59664f7a6d28e955af6f063f7e19622","target":"graph","created_at":"2026-05-18T01:02:15Z","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":"The fact that not all quantum observables are jointly measurable is one of the major differences between quantum and classical theory. In the former, non-commuting observables can only be simultaneously measured with limited precision. We report on an experimental implementation of such a simultaneous measurement of two non-commuting observables based on the framework of weak von Neumann measurements. We use a photonic setup where the polarisation degree of freedom acts as the system and the two components of the transversal position correspond to the pointers of the measurement apparatuses. I","authors_text":"Anthony Martin, Gilles P\\\"utz, Nicolas Gisin, Tomer Barnea","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-10-14T13:57:57Z","title":"Experimental weak measurement of two non-commuting observables"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04464","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:ad2642486da430c0d77fa0904b16eb6b9ed8cefd1ce977dbdba62011169f0e92","target":"record","created_at":"2026-05-18T01:02:15Z","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":"5f325652d0b43d2e154e01af7c28b1cfc3a7b59d3fecf280d661be9d926a6c04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-10-14T13:57:57Z","title_canon_sha256":"41962a821ea84dd2886a52e33938c5fe16b95153bc661f86cff1b07f02f1cce7"},"schema_version":"1.0","source":{"id":"1610.04464","kind":"arxiv","version":1}},"canonical_sha256":"9a8045ed42360cc99eaeb381925d23ca03a8c0ad6940c7291db5df536a075fdb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a8045ed42360cc99eaeb381925d23ca03a8c0ad6940c7291db5df536a075fdb","first_computed_at":"2026-05-18T01:02:15.108826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:15.108826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ntnr+vPxpnztMjqj/ivOaUld7+ERXV8xpHlp0BSkyX40hN3XCdctdtjjSKkO0vgvN6ZOVpHJ+1kZ4cJ5l8KqAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:15.109515Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.04464","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad2642486da430c0d77fa0904b16eb6b9ed8cefd1ce977dbdba62011169f0e92","sha256:1b936d933ec146c9a2662377337e36a7a59664f7a6d28e955af6f063f7e19622"],"state_sha256":"91eef0223173b825ef7b7a8c801a2d8f49f7b9f6dd6b9074f09b312d2d566523"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MLy5nTeQ5wqv+PSVwxhM2ypSVrtUXr+6bicDv9VOWcf0DL4G5pSMXu3rYYFUphAXytHv+4KwlfbioVoxV/AKAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T06:31:01.262102Z","bundle_sha256":"ca1585fe8777f967e862b260885f95193f9034367d6aed00ba29d1ee89ad6f76"}}