{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GRWBF2KSLFQQ7OBNZYPMVCLFVL","short_pith_number":"pith:GRWBF2KS","canonical_record":{"source":{"id":"2112.14553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-29T13:45:12Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"844306bd350d61d744677384a1fc9b1a8318d915eb090a9916ccb6cd0f521eea","abstract_canon_sha256":"35479aa5c199aff95a2b029d2a01e1863a6e7d5f71679c7ad9c4031b912a29e7"},"schema_version":"1.0"},"canonical_sha256":"346c12e95259610fb82dce1eca8965aae334191fcdb577c12a092a8a5e7e3c9b","source":{"kind":"arxiv","id":"2112.14553","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.14553","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"arxiv_version","alias_value":"2112.14553v1","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.14553","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_12","alias_value":"GRWBF2KSLFQQ","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_16","alias_value":"GRWBF2KSLFQQ7OBN","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_8","alias_value":"GRWBF2KS","created_at":"2026-07-05T06:44:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GRWBF2KSLFQQ7OBNZYPMVCLFVL","target":"record","payload":{"canonical_record":{"source":{"id":"2112.14553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-29T13:45:12Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"844306bd350d61d744677384a1fc9b1a8318d915eb090a9916ccb6cd0f521eea","abstract_canon_sha256":"35479aa5c199aff95a2b029d2a01e1863a6e7d5f71679c7ad9c4031b912a29e7"},"schema_version":"1.0"},"canonical_sha256":"346c12e95259610fb82dce1eca8965aae334191fcdb577c12a092a8a5e7e3c9b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:44:03.996029Z","signature_b64":"VnccN7XGw+LSR8pObGPOn/IwxSo12bK864xHqwXialw8zkW4vkf3OkWxz/3bkrq3GYVLI50mytq3RbHb2zANBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"346c12e95259610fb82dce1eca8965aae334191fcdb577c12a092a8a5e7e3c9b","last_reissued_at":"2026-07-05T06:44:03.995602Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:44:03.995602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.14553","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":"2026-07-05T06:44:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CIRx4HU277h2Bm4n+TbRGIeLzaHrm0gguJVxUtbe27TVXKjbwrw0o2yTiI4dN56onsk0Cc2OwQjJc9MNI70gAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:30:48.810564Z"},"content_sha256":"55f7a72b32d2796aa6d88019e52dd11a369dfb4c96d7a89721999d8726ba9c95","schema_version":"1.0","event_id":"sha256:55f7a72b32d2796aa6d88019e52dd11a369dfb4c96d7a89721999d8726ba9c95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GRWBF2KSLFQQ7OBNZYPMVCLFVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Active Learning of Quantum System Hamiltonians yields Query Advantage","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"quant-ph","authors_text":"Arkopal Dutt, Chai Wah Wu, Edwin Pednault, Isaac L. Chuang, John Smolin, Lev Bishop, Sarah Sheldon","submitted_at":"2021-12-29T13:45:12Z","abstract_excerpt":"Hamiltonian learning is an important procedure in quantum system identification, calibration, and successful operation of quantum computers. Through queries to the quantum system, this procedure seeks to obtain the parameters of a given Hamiltonian model and description of noise sources. Standard techniques for Hamiltonian learning require careful design of queries and $O(\\epsilon^{-2})$ queries in achieving learning error $\\epsilon$ due to the standard quantum limit. With the goal of efficiently and accurately estimating the Hamiltonian parameters within learning error $\\epsilon$ through mini"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.14553","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.14553/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":"2026-07-05T06:44:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lCmynYp1j/6JBw07hvA2U556n9/9uFIjE0Vcz5HgX7IeFIaBRChxoK3nVppC0ghsMHLHjZMoI9lk5iDL4KWlAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:30:48.811199Z"},"content_sha256":"306dfd80e80e746ee1e746d13c837eef93350256a903a5fa11fd82d51db3ec39","schema_version":"1.0","event_id":"sha256:306dfd80e80e746ee1e746d13c837eef93350256a903a5fa11fd82d51db3ec39"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/bundle.json","state_url":"https://pith.science/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/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":"2026-08-08T05:30:48Z","links":{"resolver":"https://pith.science/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL","bundle":"https://pith.science/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/bundle.json","state":"https://pith.science/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GRWBF2KSLFQQ7OBNZYPMVCLFVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GRWBF2KSLFQQ7OBNZYPMVCLFVL","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":"35479aa5c199aff95a2b029d2a01e1863a6e7d5f71679c7ad9c4031b912a29e7","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-29T13:45:12Z","title_canon_sha256":"844306bd350d61d744677384a1fc9b1a8318d915eb090a9916ccb6cd0f521eea"},"schema_version":"1.0","source":{"id":"2112.14553","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.14553","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"arxiv_version","alias_value":"2112.14553v1","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.14553","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_12","alias_value":"GRWBF2KSLFQQ","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_16","alias_value":"GRWBF2KSLFQQ7OBN","created_at":"2026-07-05T06:44:03Z"},{"alias_kind":"pith_short_8","alias_value":"GRWBF2KS","created_at":"2026-07-05T06:44:03Z"}],"graph_snapshots":[{"event_id":"sha256:306dfd80e80e746ee1e746d13c837eef93350256a903a5fa11fd82d51db3ec39","target":"graph","created_at":"2026-07-05T06:44:03Z","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/2112.14553/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hamiltonian learning is an important procedure in quantum system identification, calibration, and successful operation of quantum computers. Through queries to the quantum system, this procedure seeks to obtain the parameters of a given Hamiltonian model and description of noise sources. Standard techniques for Hamiltonian learning require careful design of queries and $O(\\epsilon^{-2})$ queries in achieving learning error $\\epsilon$ due to the standard quantum limit. With the goal of efficiently and accurately estimating the Hamiltonian parameters within learning error $\\epsilon$ through mini","authors_text":"Arkopal Dutt, Chai Wah Wu, Edwin Pednault, Isaac L. Chuang, John Smolin, Lev Bishop, Sarah Sheldon","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-29T13:45:12Z","title":"Active Learning of Quantum System Hamiltonians yields Query Advantage"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.14553","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":"sha256:55f7a72b32d2796aa6d88019e52dd11a369dfb4c96d7a89721999d8726ba9c95","target":"record","created_at":"2026-07-05T06:44:03Z","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":"35479aa5c199aff95a2b029d2a01e1863a6e7d5f71679c7ad9c4031b912a29e7","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-12-29T13:45:12Z","title_canon_sha256":"844306bd350d61d744677384a1fc9b1a8318d915eb090a9916ccb6cd0f521eea"},"schema_version":"1.0","source":{"id":"2112.14553","kind":"arxiv","version":1}},"canonical_sha256":"346c12e95259610fb82dce1eca8965aae334191fcdb577c12a092a8a5e7e3c9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"346c12e95259610fb82dce1eca8965aae334191fcdb577c12a092a8a5e7e3c9b","first_computed_at":"2026-07-05T06:44:03.995602Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:44:03.995602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VnccN7XGw+LSR8pObGPOn/IwxSo12bK864xHqwXialw8zkW4vkf3OkWxz/3bkrq3GYVLI50mytq3RbHb2zANBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:44:03.996029Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.14553","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55f7a72b32d2796aa6d88019e52dd11a369dfb4c96d7a89721999d8726ba9c95","sha256:306dfd80e80e746ee1e746d13c837eef93350256a903a5fa11fd82d51db3ec39"],"state_sha256":"a81fc781d1eca3feed68bc16e0980b30ee06108ff3e9456f2f8fafead7cbcb2c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YkuI+6QnafthR+qoo8XzjV0Nta9y/+aoZHzxjYIU0PvGO8LWHzR/Mqi51iVQgUow8fvqMj1FjBd+ROOixYG3DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T05:30:48.816460Z","bundle_sha256":"40af049cafcf3b882bca368653028f3cb7a32d1a8c35b822ef06b7b003c8804b"}}