{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LSTPBUW6PL3D6V2MTJCKDNFVPD","short_pith_number":"pith:LSTPBUW6","canonical_record":{"source":{"id":"1203.1677","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-08T02:02:23Z","cross_cats_sorted":[],"title_canon_sha256":"1b6cab711a459a7e383d751966937d6a1afde3efb0ff21aa32603fc87ab321e6","abstract_canon_sha256":"a1f1cc1cbb783b3ced8d6bdb9ef3249ec7c59ff2b4d9e934859d5143b23b9c8d"},"schema_version":"1.0"},"canonical_sha256":"5ca6f0d2de7af63f574c9a44a1b4b578c65dc5dda2b54002ced0a3133e9b46a8","source":{"kind":"arxiv","id":"1203.1677","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1677","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1677v1","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1677","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"LSTPBUW6PL3D","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LSTPBUW6PL3D6V2M","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LSTPBUW6","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LSTPBUW6PL3D6V2MTJCKDNFVPD","target":"record","payload":{"canonical_record":{"source":{"id":"1203.1677","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-08T02:02:23Z","cross_cats_sorted":[],"title_canon_sha256":"1b6cab711a459a7e383d751966937d6a1afde3efb0ff21aa32603fc87ab321e6","abstract_canon_sha256":"a1f1cc1cbb783b3ced8d6bdb9ef3249ec7c59ff2b4d9e934859d5143b23b9c8d"},"schema_version":"1.0"},"canonical_sha256":"5ca6f0d2de7af63f574c9a44a1b4b578c65dc5dda2b54002ced0a3133e9b46a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:13.242957Z","signature_b64":"rj5hoW6lJi+JFWTRDtvPAvRhiOHJ65Mc0FN+IPVWdZSsxKgcSfWZmUN0UohHj3WOy8EcxbbpgWuEjPkAY7XZBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ca6f0d2de7af63f574c9a44a1b4b578c65dc5dda2b54002ced0a3133e9b46a8","last_reissued_at":"2026-05-18T01:58:13.242192Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:13.242192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.1677","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":"2026-05-18T01:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RhHkoburV+68xl1+0teq9efIHIpgA7aaxcZ+K5DVTA+M34l8z0U6Vw66ooLRp0XK9Fu+VbyLVpLKEpFv4VwtDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:24:32.262865Z"},"content_sha256":"df021384a0212b367debf9a3d74367182bb3e7412d6865f5cd0cadd3efb6e500","schema_version":"1.0","event_id":"sha256:df021384a0212b367debf9a3d74367182bb3e7412d6865f5cd0cadd3efb6e500"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LSTPBUW6PL3D6V2MTJCKDNFVPD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Symmetric minimal quantum tomography by successive measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Amir Kalev, Berthold-Georg Englert, Jiangwei Shang","submitted_at":"2012-03-08T02:02:23Z","abstract_excerpt":"We consider the implementation of a symmetric informationally complete probability-operator measurement (SIC POM) in the Hilbert space of a d-level system by a two-step measurement process: a diagonal-operator measurement with high-rank outcomes, followed by a rank-1 measurement in a basis chosen in accordance with the result of the first measurement. We find that any Heisenberg-Weyl group-covariant SIC POM can be realized by such a sequence where the second measurement is simply a measurement in the Fourier basis, independent of the result of the first measurement. Furthermore, at least for t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1677","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":"2026-05-18T01:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VhBL+mNnYVlmVs/8sg3BLpgPVrGoEYxb0yi2IIOzBWURC8ySnqrdJxNnieartTehOm3HBqF0+du9peDeHY/bCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:24:32.263257Z"},"content_sha256":"acfbb5ffae0f5a2c72a406dbbe81331baa210f45ef07dc8fb21930db0cd788f0","schema_version":"1.0","event_id":"sha256:acfbb5ffae0f5a2c72a406dbbe81331baa210f45ef07dc8fb21930db0cd788f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/bundle.json","state_url":"https://pith.science/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/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":"2026-06-10T05:24:32Z","links":{"resolver":"https://pith.science/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD","bundle":"https://pith.science/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/bundle.json","state":"https://pith.science/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LSTPBUW6PL3D6V2MTJCKDNFVPD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LSTPBUW6PL3D6V2MTJCKDNFVPD","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":"a1f1cc1cbb783b3ced8d6bdb9ef3249ec7c59ff2b4d9e934859d5143b23b9c8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-08T02:02:23Z","title_canon_sha256":"1b6cab711a459a7e383d751966937d6a1afde3efb0ff21aa32603fc87ab321e6"},"schema_version":"1.0","source":{"id":"1203.1677","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1677","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1677v1","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1677","created_at":"2026-05-18T01:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"LSTPBUW6PL3D","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LSTPBUW6PL3D6V2M","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LSTPBUW6","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:acfbb5ffae0f5a2c72a406dbbe81331baa210f45ef07dc8fb21930db0cd788f0","target":"graph","created_at":"2026-05-18T01:58:13Z","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 consider the implementation of a symmetric informationally complete probability-operator measurement (SIC POM) in the Hilbert space of a d-level system by a two-step measurement process: a diagonal-operator measurement with high-rank outcomes, followed by a rank-1 measurement in a basis chosen in accordance with the result of the first measurement. We find that any Heisenberg-Weyl group-covariant SIC POM can be realized by such a sequence where the second measurement is simply a measurement in the Fourier basis, independent of the result of the first measurement. Furthermore, at least for t","authors_text":"Amir Kalev, Berthold-Georg Englert, Jiangwei Shang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-08T02:02:23Z","title":"Symmetric minimal quantum tomography by successive measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1677","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:df021384a0212b367debf9a3d74367182bb3e7412d6865f5cd0cadd3efb6e500","target":"record","created_at":"2026-05-18T01:58:13Z","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":"a1f1cc1cbb783b3ced8d6bdb9ef3249ec7c59ff2b4d9e934859d5143b23b9c8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-08T02:02:23Z","title_canon_sha256":"1b6cab711a459a7e383d751966937d6a1afde3efb0ff21aa32603fc87ab321e6"},"schema_version":"1.0","source":{"id":"1203.1677","kind":"arxiv","version":1}},"canonical_sha256":"5ca6f0d2de7af63f574c9a44a1b4b578c65dc5dda2b54002ced0a3133e9b46a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ca6f0d2de7af63f574c9a44a1b4b578c65dc5dda2b54002ced0a3133e9b46a8","first_computed_at":"2026-05-18T01:58:13.242192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:13.242192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rj5hoW6lJi+JFWTRDtvPAvRhiOHJ65Mc0FN+IPVWdZSsxKgcSfWZmUN0UohHj3WOy8EcxbbpgWuEjPkAY7XZBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:13.242957Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1677","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df021384a0212b367debf9a3d74367182bb3e7412d6865f5cd0cadd3efb6e500","sha256:acfbb5ffae0f5a2c72a406dbbe81331baa210f45ef07dc8fb21930db0cd788f0"],"state_sha256":"ed0f360820c919f431831d818869614d4901da3dc9f1079306753afe937f1774"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HnmtM1ox2hbKtc2jaXoN67Lz4jbw159g4YOtdDQMo8EbXx3PbVQETd0iOs7tF60y2WfNHI03MLwrE2diUY9QAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T05:24:32.265782Z","bundle_sha256":"636fc66122797200985b6002f3421eb8344ba57edf473d88ca996ac9d24b80d8"}}