{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:L4UWLKS63TLZXFWSFLMUBWLWWK","short_pith_number":"pith:L4UWLKS6","canonical_record":{"source":{"id":"2102.10132","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-19T19:30:18Z","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"title_canon_sha256":"d7a575e84ea73c0943ccedc9741fa04a010b00b8dccbe1c7396d24abea6aa78c","abstract_canon_sha256":"36cab55ec003d5f7779e4d0660092bb84ebebadb16e58ac36ab320c10fa1da1b"},"schema_version":"1.0"},"canonical_sha256":"5f2965aa5edcd79b96d22ad940d976b281139235241052441ac917938610ff55","source":{"kind":"arxiv","id":"2102.10132","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.10132","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"2102.10132v2","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.10132","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"L4UWLKS63TLZ","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_16","alias_value":"L4UWLKS63TLZXFWS","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_8","alias_value":"L4UWLKS6","created_at":"2026-07-05T03:52:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:L4UWLKS63TLZXFWSFLMUBWLWWK","target":"record","payload":{"canonical_record":{"source":{"id":"2102.10132","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-19T19:30:18Z","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"title_canon_sha256":"d7a575e84ea73c0943ccedc9741fa04a010b00b8dccbe1c7396d24abea6aa78c","abstract_canon_sha256":"36cab55ec003d5f7779e4d0660092bb84ebebadb16e58ac36ab320c10fa1da1b"},"schema_version":"1.0"},"canonical_sha256":"5f2965aa5edcd79b96d22ad940d976b281139235241052441ac917938610ff55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:52:49.482396Z","signature_b64":"4ttHUS3n4yLHkD8CgQxNOk+zyCgyDM10tYWWxrU7D1GZ0j8SKpyp8fGnBgoPZzqUQfoxa/+73zfS7/cjVvKuDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f2965aa5edcd79b96d22ad940d976b281139235241052441ac917938610ff55","last_reissued_at":"2026-07-05T03:52:49.482007Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:52:49.482007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.10132","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":"2026-07-05T03:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5W0pIkUGA6oSZMlHEPC5chBmAvaJtuigDPyEhQ+PHF83cbMAf5/jGW4dqN6gyukObG+9hGdbOYejMk9i6jhLDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T17:14:10.388473Z"},"content_sha256":"bc9d99421e6521d10789c8953ff822785a54f61e0dcbd072cc2f64a7e4ff9e5f","schema_version":"1.0","event_id":"sha256:bc9d99421e6521d10789c8953ff822785a54f61e0dcbd072cc2f64a7e4ff9e5f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:L4UWLKS63TLZXFWSFLMUBWLWWK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hamiltonian-Driven Shadow Tomography of Quantum States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","cs.LG","math.IT"],"primary_cat":"quant-ph","authors_text":"Hong-Ye Hu, Yi-Zhuang You","submitted_at":"2021-02-19T19:30:18Z","abstract_excerpt":"Classical shadow tomography provides an efficient method for predicting functions of an unknown quantum state from a few measurements of the state. It relies on a unitary channel that efficiently scrambles the quantum information of the state to the measurement basis. Facing the challenge of realizing deep unitary circuits on near-term quantum devices, we explore the scenario in which the unitary channel can be shallow and is generated by a quantum chaotic Hamiltonian via time evolution. We provide an unbiased estimator of the density matrix for all ranges of the evolution time. We analyze the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.10132","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/2102.10132/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":"2026-07-05T03:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SgmqC5jNCXpqfA59eSnsqbbAi58dCRzQc4Gs0ceXfEgcWuvwCS34M87W9A1HmrMCXupKMvLcWja8KApXzMMyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T17:14:10.388868Z"},"content_sha256":"bbfad4d16e9c99e7584bdb0bd036852aa09726b628eddc63260f621bc64b0552","schema_version":"1.0","event_id":"sha256:bbfad4d16e9c99e7584bdb0bd036852aa09726b628eddc63260f621bc64b0552"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/bundle.json","state_url":"https://pith.science/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/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":"2026-08-05T17:14:10Z","links":{"resolver":"https://pith.science/pith/L4UWLKS63TLZXFWSFLMUBWLWWK","bundle":"https://pith.science/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/bundle.json","state":"https://pith.science/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4UWLKS63TLZXFWSFLMUBWLWWK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:L4UWLKS63TLZXFWSFLMUBWLWWK","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":"36cab55ec003d5f7779e4d0660092bb84ebebadb16e58ac36ab320c10fa1da1b","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-19T19:30:18Z","title_canon_sha256":"d7a575e84ea73c0943ccedc9741fa04a010b00b8dccbe1c7396d24abea6aa78c"},"schema_version":"1.0","source":{"id":"2102.10132","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.10132","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"2102.10132v2","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.10132","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"L4UWLKS63TLZ","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_16","alias_value":"L4UWLKS63TLZXFWS","created_at":"2026-07-05T03:52:49Z"},{"alias_kind":"pith_short_8","alias_value":"L4UWLKS6","created_at":"2026-07-05T03:52:49Z"}],"graph_snapshots":[{"event_id":"sha256:bbfad4d16e9c99e7584bdb0bd036852aa09726b628eddc63260f621bc64b0552","target":"graph","created_at":"2026-07-05T03:52:49Z","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/2102.10132/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Classical shadow tomography provides an efficient method for predicting functions of an unknown quantum state from a few measurements of the state. It relies on a unitary channel that efficiently scrambles the quantum information of the state to the measurement basis. Facing the challenge of realizing deep unitary circuits on near-term quantum devices, we explore the scenario in which the unitary channel can be shallow and is generated by a quantum chaotic Hamiltonian via time evolution. We provide an unbiased estimator of the density matrix for all ranges of the evolution time. We analyze the","authors_text":"Hong-Ye Hu, Yi-Zhuang You","cross_cats":["cs.IT","cs.LG","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-19T19:30:18Z","title":"Hamiltonian-Driven Shadow Tomography of Quantum States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.10132","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:bc9d99421e6521d10789c8953ff822785a54f61e0dcbd072cc2f64a7e4ff9e5f","target":"record","created_at":"2026-07-05T03:52:49Z","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":"36cab55ec003d5f7779e4d0660092bb84ebebadb16e58ac36ab320c10fa1da1b","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-19T19:30:18Z","title_canon_sha256":"d7a575e84ea73c0943ccedc9741fa04a010b00b8dccbe1c7396d24abea6aa78c"},"schema_version":"1.0","source":{"id":"2102.10132","kind":"arxiv","version":2}},"canonical_sha256":"5f2965aa5edcd79b96d22ad940d976b281139235241052441ac917938610ff55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f2965aa5edcd79b96d22ad940d976b281139235241052441ac917938610ff55","first_computed_at":"2026-07-05T03:52:49.482007Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:52:49.482007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4ttHUS3n4yLHkD8CgQxNOk+zyCgyDM10tYWWxrU7D1GZ0j8SKpyp8fGnBgoPZzqUQfoxa/+73zfS7/cjVvKuDw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:52:49.482396Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.10132","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc9d99421e6521d10789c8953ff822785a54f61e0dcbd072cc2f64a7e4ff9e5f","sha256:bbfad4d16e9c99e7584bdb0bd036852aa09726b628eddc63260f621bc64b0552"],"state_sha256":"48b254a232a14641a8d8dd567a29708e6ee43034e5618272cfd38097dba5051c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NDFDbnU8DJF7WDj72w3HC1DNDRcGBkLHdt+SrjhwHHc9ObEQbG5ZRPkLuYntJgXg1ueckjL7BpWZrlVOgIgCAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T17:14:10.391355Z","bundle_sha256":"c05e8dcb1d813b51586b99cc06c472ec4dc99096c8171e1aed94d35e37001da2"}}