{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JILVSOQUVRP2LMGKRE6CAZEXAH","short_pith_number":"pith:JILVSOQU","canonical_record":{"source":{"id":"1806.01189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:34:14Z","cross_cats_sorted":[],"title_canon_sha256":"2d2aef4ed0704bbf4197d8766dabc7aa83450671f64db7aedb5def69d8002fae","abstract_canon_sha256":"76755927c22e3590cbd0a4343a4d90784a8dea27f2ac78262621b63a1f3f36a3"},"schema_version":"1.0"},"canonical_sha256":"4a17593a14ac5fa5b0ca893c20649701c088a49a7f94d1fd33800c627af0a543","source":{"kind":"arxiv","id":"1806.01189","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01189","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01189v1","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01189","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"JILVSOQUVRP2","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JILVSOQUVRP2LMGK","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JILVSOQU","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JILVSOQUVRP2LMGKRE6CAZEXAH","target":"record","payload":{"canonical_record":{"source":{"id":"1806.01189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:34:14Z","cross_cats_sorted":[],"title_canon_sha256":"2d2aef4ed0704bbf4197d8766dabc7aa83450671f64db7aedb5def69d8002fae","abstract_canon_sha256":"76755927c22e3590cbd0a4343a4d90784a8dea27f2ac78262621b63a1f3f36a3"},"schema_version":"1.0"},"canonical_sha256":"4a17593a14ac5fa5b0ca893c20649701c088a49a7f94d1fd33800c627af0a543","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:17.146636Z","signature_b64":"6aK+Y+f9ScMr+a1Ik8GZs3aKJoOD/KNqXNTUKKpH1dnJg3ivwVkYGnGMbnznN8NNQ5SqJewVa1KJr8v1wcpHAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a17593a14ac5fa5b0ca893c20649701c088a49a7f94d1fd33800c627af0a543","last_reissued_at":"2026-05-18T00:14:17.146029Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:17.146029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.01189","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":"2026-05-18T00:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bzR06NZVPHPpHh6Qey+Rm5FudOE2xpA25R4KwiTAg/72I+lro5buwQJZG8/UJwH1N/CpoadpqPJMYys+XTsfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T18:49:04.424548Z"},"content_sha256":"d9fd5aa9c834f1cc583950b7f315e8372307a5fe6d943d4acbbe4d0ca0bdf3d0","schema_version":"1.0","event_id":"sha256:d9fd5aa9c834f1cc583950b7f315e8372307a5fe6d943d4acbbe4d0ca0bdf3d0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JILVSOQUVRP2LMGKRE6CAZEXAH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Faithful Pointer for qubit measurement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. K. Pan, Asmita Kumari","submitted_at":"2018-06-04T16:34:14Z","abstract_excerpt":"In the context of von Neumann projective measurement scenario for a qubit system, it is widely believed that the mutual orthogonality between the post-interaction pointer states is the sufficient condition for achieving the ideal measurement situation. However, for experimentally verifying the observable probabilities, the real space distinction between the pointer distributions corresponding to post-interaction pointer states play crucial role. It is implicitly assumed that mutual orthogonality ensures the support between the post-interaction pointer distributions to be disjoint. We point out"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01189","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":"2026-05-18T00:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"braaOkqqJhbK2f4IKvhaqmtgLZ+KGC1KiPyWTZURu/CV0N0vqRnY4Z9CO/doQP+U4fxMa1yN5pzBkALA8hxVDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T18:49:04.425197Z"},"content_sha256":"da791401f7250033d0188ce129d1157f1360cb1e3f25ecad9ca3a636ba09b35a","schema_version":"1.0","event_id":"sha256:da791401f7250033d0188ce129d1157f1360cb1e3f25ecad9ca3a636ba09b35a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/bundle.json","state_url":"https://pith.science/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/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":"2026-06-05T18:49:04Z","links":{"resolver":"https://pith.science/pith/JILVSOQUVRP2LMGKRE6CAZEXAH","bundle":"https://pith.science/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/bundle.json","state":"https://pith.science/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JILVSOQUVRP2LMGKRE6CAZEXAH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JILVSOQUVRP2LMGKRE6CAZEXAH","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":"76755927c22e3590cbd0a4343a4d90784a8dea27f2ac78262621b63a1f3f36a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:34:14Z","title_canon_sha256":"2d2aef4ed0704bbf4197d8766dabc7aa83450671f64db7aedb5def69d8002fae"},"schema_version":"1.0","source":{"id":"1806.01189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01189","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01189v1","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01189","created_at":"2026-05-18T00:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"JILVSOQUVRP2","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JILVSOQUVRP2LMGK","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JILVSOQU","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:da791401f7250033d0188ce129d1157f1360cb1e3f25ecad9ca3a636ba09b35a","target":"graph","created_at":"2026-05-18T00:14:17Z","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":"In the context of von Neumann projective measurement scenario for a qubit system, it is widely believed that the mutual orthogonality between the post-interaction pointer states is the sufficient condition for achieving the ideal measurement situation. However, for experimentally verifying the observable probabilities, the real space distinction between the pointer distributions corresponding to post-interaction pointer states play crucial role. It is implicitly assumed that mutual orthogonality ensures the support between the post-interaction pointer distributions to be disjoint. We point out","authors_text":"A. K. Pan, Asmita Kumari","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:34:14Z","title":"Faithful Pointer for qubit measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01189","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:d9fd5aa9c834f1cc583950b7f315e8372307a5fe6d943d4acbbe4d0ca0bdf3d0","target":"record","created_at":"2026-05-18T00:14:17Z","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":"76755927c22e3590cbd0a4343a4d90784a8dea27f2ac78262621b63a1f3f36a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:34:14Z","title_canon_sha256":"2d2aef4ed0704bbf4197d8766dabc7aa83450671f64db7aedb5def69d8002fae"},"schema_version":"1.0","source":{"id":"1806.01189","kind":"arxiv","version":1}},"canonical_sha256":"4a17593a14ac5fa5b0ca893c20649701c088a49a7f94d1fd33800c627af0a543","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a17593a14ac5fa5b0ca893c20649701c088a49a7f94d1fd33800c627af0a543","first_computed_at":"2026-05-18T00:14:17.146029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:17.146029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6aK+Y+f9ScMr+a1Ik8GZs3aKJoOD/KNqXNTUKKpH1dnJg3ivwVkYGnGMbnznN8NNQ5SqJewVa1KJr8v1wcpHAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:17.146636Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9fd5aa9c834f1cc583950b7f315e8372307a5fe6d943d4acbbe4d0ca0bdf3d0","sha256:da791401f7250033d0188ce129d1157f1360cb1e3f25ecad9ca3a636ba09b35a"],"state_sha256":"18c029c7e920eecbc6911a9c43658d8bbf6fc3cecef2955c4778f0411414d9ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mngP9qXViLFPIbHQEH8k7KzDJoH/xs0bp/l20AcKj7zKZtuzSrE/ELQsspwkMIDBWMpeJxovl8qxyYe/16QpBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T18:49:04.429408Z","bundle_sha256":"fdba68a4e5cb9423803777fb61abd8b441e08386d8098f7ccb2d819c5ad183de"}}