{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5ZKPD23MQBYFQ5VHOEVS2GTTP5","short_pith_number":"pith:5ZKPD23M","canonical_record":{"source":{"id":"1610.00336","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2016-10-02T19:01:09Z","cross_cats_sorted":["physics.data-an","stat.AP"],"title_canon_sha256":"e784243b8bf2b17f9c7093b04ebaf55352e2164caae1e260418ff3f3cefc30ab","abstract_canon_sha256":"bee4b6d1a456e4d837025445f5c278cb56a0d131ddf40c9bb1536a3990ef9375"},"schema_version":"1.0"},"canonical_sha256":"ee54f1eb6c80705876a7712b2d1a737f511aba15b394a8ecee6f63a1ae3a1894","source":{"kind":"arxiv","id":"1610.00336","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.00336","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"arxiv_version","alias_value":"1610.00336v2","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.00336","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"pith_short_12","alias_value":"5ZKPD23MQBYF","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5ZKPD23MQBYFQ5VH","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5ZKPD23M","created_at":"2026-05-18T12:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5ZKPD23MQBYFQ5VHOEVS2GTTP5","target":"record","payload":{"canonical_record":{"source":{"id":"1610.00336","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2016-10-02T19:01:09Z","cross_cats_sorted":["physics.data-an","stat.AP"],"title_canon_sha256":"e784243b8bf2b17f9c7093b04ebaf55352e2164caae1e260418ff3f3cefc30ab","abstract_canon_sha256":"bee4b6d1a456e4d837025445f5c278cb56a0d131ddf40c9bb1536a3990ef9375"},"schema_version":"1.0"},"canonical_sha256":"ee54f1eb6c80705876a7712b2d1a737f511aba15b394a8ecee6f63a1ae3a1894","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:46.086492Z","signature_b64":"Rt3r+P/FgPVJN7LzxqKNAwN2L5M5yEXZI3AIUDRrs+hRx0uMuwB67ZC3q06nEcrrjH6qf+GGYAj9xY+g0VHTCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee54f1eb6c80705876a7712b2d1a737f511aba15b394a8ecee6f63a1ae3a1894","last_reissued_at":"2026-05-18T00:23:46.085831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:46.085831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.00336","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":"2026-05-18T00:23:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2EkBtfjkCEETZjOVVZdK3vVRjBX75SUdgARyeQ8LQBbHWkfi/UfWyM8zzgAa4Rp1faHqtM4COoTP0RKiJM9bCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:58:00.609820Z"},"content_sha256":"30a24d776f28757d40777f6783cb36d3e563a45dc5b71c2fcb0d163e17140422","schema_version":"1.0","event_id":"sha256:30a24d776f28757d40777f6783cb36d3e563a45dc5b71c2fcb0d163e17140422"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5ZKPD23MQBYFQ5VHOEVS2GTTP5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"QInfer: Statistical inference software for quantum applications","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["physics.data-an","stat.AP"],"primary_cat":"quant-ph","authors_text":"Christopher Ferrie, Christopher Granade, Ian Hincks, Jonathan Gross, Michal Kononenko, Steven Casagrande, Thomas Alexander, Yuval Sanders","submitted_at":"2016-10-02T19:01:09Z","abstract_excerpt":"Characterizing quantum systems through experimental data is critical to applications as diverse as metrology and quantum computing. Analyzing this experimental data in a robust and reproducible manner is made challenging, however, by the lack of readily-available software for performing principled statistical analysis. We improve the robustness and reproducibility of characterization by introducing an open-source library, QInfer, to address this need. Our library makes it easy to analyze data from tomography, randomized benchmarking, and Hamiltonian learning experiments either in post-processi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.00336","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":""},"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":"2026-05-18T00:23:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2beR4FstY7Vxrf+EJYfREQyRT71p22YWQV2ujBm3wJLp3AguvEOznJ6CjLh+RFlXmvm9Mi0KtMz7fMb20/WQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:58:00.610167Z"},"content_sha256":"4ebab75c8c3aaf93c0beab4c8e2cdef9a23abc901e322928912b40198c37670e","schema_version":"1.0","event_id":"sha256:4ebab75c8c3aaf93c0beab4c8e2cdef9a23abc901e322928912b40198c37670e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/bundle.json","state_url":"https://pith.science/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/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":"2026-05-28T21:58:00Z","links":{"resolver":"https://pith.science/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5","bundle":"https://pith.science/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/bundle.json","state":"https://pith.science/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5ZKPD23MQBYFQ5VHOEVS2GTTP5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5ZKPD23MQBYFQ5VHOEVS2GTTP5","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":"bee4b6d1a456e4d837025445f5c278cb56a0d131ddf40c9bb1536a3990ef9375","cross_cats_sorted":["physics.data-an","stat.AP"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2016-10-02T19:01:09Z","title_canon_sha256":"e784243b8bf2b17f9c7093b04ebaf55352e2164caae1e260418ff3f3cefc30ab"},"schema_version":"1.0","source":{"id":"1610.00336","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.00336","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"arxiv_version","alias_value":"1610.00336v2","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.00336","created_at":"2026-05-18T00:23:46Z"},{"alias_kind":"pith_short_12","alias_value":"5ZKPD23MQBYF","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5ZKPD23MQBYFQ5VH","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5ZKPD23M","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:4ebab75c8c3aaf93c0beab4c8e2cdef9a23abc901e322928912b40198c37670e","target":"graph","created_at":"2026-05-18T00:23:46Z","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":"Characterizing quantum systems through experimental data is critical to applications as diverse as metrology and quantum computing. Analyzing this experimental data in a robust and reproducible manner is made challenging, however, by the lack of readily-available software for performing principled statistical analysis. We improve the robustness and reproducibility of characterization by introducing an open-source library, QInfer, to address this need. Our library makes it easy to analyze data from tomography, randomized benchmarking, and Hamiltonian learning experiments either in post-processi","authors_text":"Christopher Ferrie, Christopher Granade, Ian Hincks, Jonathan Gross, Michal Kononenko, Steven Casagrande, Thomas Alexander, Yuval Sanders","cross_cats":["physics.data-an","stat.AP"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2016-10-02T19:01:09Z","title":"QInfer: Statistical inference software for quantum applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.00336","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":"sha256:30a24d776f28757d40777f6783cb36d3e563a45dc5b71c2fcb0d163e17140422","target":"record","created_at":"2026-05-18T00:23:46Z","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":"bee4b6d1a456e4d837025445f5c278cb56a0d131ddf40c9bb1536a3990ef9375","cross_cats_sorted":["physics.data-an","stat.AP"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2016-10-02T19:01:09Z","title_canon_sha256":"e784243b8bf2b17f9c7093b04ebaf55352e2164caae1e260418ff3f3cefc30ab"},"schema_version":"1.0","source":{"id":"1610.00336","kind":"arxiv","version":2}},"canonical_sha256":"ee54f1eb6c80705876a7712b2d1a737f511aba15b394a8ecee6f63a1ae3a1894","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee54f1eb6c80705876a7712b2d1a737f511aba15b394a8ecee6f63a1ae3a1894","first_computed_at":"2026-05-18T00:23:46.085831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:46.085831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rt3r+P/FgPVJN7LzxqKNAwN2L5M5yEXZI3AIUDRrs+hRx0uMuwB67ZC3q06nEcrrjH6qf+GGYAj9xY+g0VHTCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:46.086492Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.00336","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30a24d776f28757d40777f6783cb36d3e563a45dc5b71c2fcb0d163e17140422","sha256:4ebab75c8c3aaf93c0beab4c8e2cdef9a23abc901e322928912b40198c37670e"],"state_sha256":"e714c6de18c1c3691f27720a3edd69c2158e628b6ad5a98bc08feb6bfb4400df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pcnkECpbk08FMWi0f1cYlGORfk7epHVtBJilE2hQqActBqot7MXLWp2ygCveUTFMitswh6q1t5FBbjf94In9CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:58:00.612234Z","bundle_sha256":"7ec475f158124cbac07e6b02a4d3d4127a81e0950116fc100d1d88c6ae47a950"}}