{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:XJK4PKHVFMJXIQZSBEMVW5YP6S","short_pith_number":"pith:XJK4PKHV","canonical_record":{"source":{"id":"2102.08587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-17T05:48:29Z","cross_cats_sorted":[],"title_canon_sha256":"b2a61399827d8248aa540f39638f91007661556e0f00dbe73ed5c34363c49f45","abstract_canon_sha256":"5c478e45f21c59480f09fb86110579968cd43efec34d5508e57a7769a6db852f"},"schema_version":"1.0"},"canonical_sha256":"ba55c7a8f52b1374433209195b770ff48a5e55bd990fe87c9391c2b05c7a7e14","source":{"kind":"arxiv","id":"2102.08587","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.08587","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"arxiv_version","alias_value":"2102.08587v1","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.08587","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_12","alias_value":"XJK4PKHVFMJX","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_16","alias_value":"XJK4PKHVFMJXIQZS","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_8","alias_value":"XJK4PKHV","created_at":"2026-07-05T02:56:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:XJK4PKHVFMJXIQZSBEMVW5YP6S","target":"record","payload":{"canonical_record":{"source":{"id":"2102.08587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-17T05:48:29Z","cross_cats_sorted":[],"title_canon_sha256":"b2a61399827d8248aa540f39638f91007661556e0f00dbe73ed5c34363c49f45","abstract_canon_sha256":"5c478e45f21c59480f09fb86110579968cd43efec34d5508e57a7769a6db852f"},"schema_version":"1.0"},"canonical_sha256":"ba55c7a8f52b1374433209195b770ff48a5e55bd990fe87c9391c2b05c7a7e14","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:56:38.552285Z","signature_b64":"CTg6MzqlRvkuLjh3KAZkW0v4PPV6SHYsuwgj8cVutcxRwMeink0U/xPS48H5YIjZZwer1YyUuDyzw3IyqSHACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba55c7a8f52b1374433209195b770ff48a5e55bd990fe87c9391c2b05c7a7e14","last_reissued_at":"2026-07-05T02:56:38.551883Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:56:38.551883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.08587","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":"2026-07-05T02:56:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZEF0ypplH3R0trRoRTGZcRhU0dEKgzroSiqXSxL69H9j1aG9vud0+XHZ1RXnfqR91ED2LLwk3aL6+54ubuK2CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T01:29:20.152482Z"},"content_sha256":"a594852cf539a073f6fdd05e8986d1774d394ffa3f856e3eb658cb1a96380fe4","schema_version":"1.0","event_id":"sha256:a594852cf539a073f6fdd05e8986d1774d394ffa3f856e3eb658cb1a96380fe4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:XJK4PKHVFMJXIQZSBEMVW5YP6S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of strong and weak thermalization in a superconducting quantum processor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Cheng Guo, Cheng-Zhi Peng, Chen Zha, Fusheng Chen, Futian Liang, Haoran Qian, Hao Rong, He-Liang Huang, Heng Fan, Hui Deng, Jiale Yu, Jian-Wei Pan, Jin Lin, Lihua Sun, Ming Gong, Na Li, Qingling Zhu, Shaojun Guo, Shaowei Li, Xiaobo Zhu, Yangsen Ye, Yulin Wu, Yu-Ran Zhang, Yu Xu, Zheng-Hang Sun","submitted_at":"2021-02-17T05:48:29Z","abstract_excerpt":"We experimentally study the ergodic dynamics of a 1D array of 12 superconducting qubits with a transverse field, and identify the regimes of strong and weak thermalization with different initial states. We observe convergence of the local observable to its thermal expectation value in the strong-thermalizaion regime. For weak thermalization, the dynamics of local observable exhibits an oscillation around the thermal value, which can only be attained by the time average. We also demonstrate that the entanglement entropy and concurrence can characterize the regimes of strong and weak thermalizat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.08587","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/2102.08587/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":"2026-07-05T02:56:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dRs2a6lKfeeHg/6cKTjw8Dtb98mEqWCFJY1wuQBVyJPk+lA+aGf7dbi71Nl+HHSrYq3gZYYDBwkkCOEQHyt0Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T01:29:20.153306Z"},"content_sha256":"f5ba316bbbb7d9ea9e6580ced82358a6d7d302bf27cd55734643bac3703aff55","schema_version":"1.0","event_id":"sha256:f5ba316bbbb7d9ea9e6580ced82358a6d7d302bf27cd55734643bac3703aff55"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/bundle.json","state_url":"https://pith.science/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/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":"2026-08-14T01:29:20Z","links":{"resolver":"https://pith.science/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S","bundle":"https://pith.science/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/bundle.json","state":"https://pith.science/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XJK4PKHVFMJXIQZSBEMVW5YP6S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XJK4PKHVFMJXIQZSBEMVW5YP6S","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":"5c478e45f21c59480f09fb86110579968cd43efec34d5508e57a7769a6db852f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-17T05:48:29Z","title_canon_sha256":"b2a61399827d8248aa540f39638f91007661556e0f00dbe73ed5c34363c49f45"},"schema_version":"1.0","source":{"id":"2102.08587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.08587","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"arxiv_version","alias_value":"2102.08587v1","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.08587","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_12","alias_value":"XJK4PKHVFMJX","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_16","alias_value":"XJK4PKHVFMJXIQZS","created_at":"2026-07-05T02:56:38Z"},{"alias_kind":"pith_short_8","alias_value":"XJK4PKHV","created_at":"2026-07-05T02:56:38Z"}],"graph_snapshots":[{"event_id":"sha256:f5ba316bbbb7d9ea9e6580ced82358a6d7d302bf27cd55734643bac3703aff55","target":"graph","created_at":"2026-07-05T02:56:38Z","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/2102.08587/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We experimentally study the ergodic dynamics of a 1D array of 12 superconducting qubits with a transverse field, and identify the regimes of strong and weak thermalization with different initial states. We observe convergence of the local observable to its thermal expectation value in the strong-thermalizaion regime. For weak thermalization, the dynamics of local observable exhibits an oscillation around the thermal value, which can only be attained by the time average. We also demonstrate that the entanglement entropy and concurrence can characterize the regimes of strong and weak thermalizat","authors_text":"Cheng Guo, Cheng-Zhi Peng, Chen Zha, Fusheng Chen, Futian Liang, Haoran Qian, Hao Rong, He-Liang Huang, Heng Fan, Hui Deng, Jiale Yu, Jian-Wei Pan, Jin Lin, Lihua Sun, Ming Gong, Na Li, Qingling Zhu, Shaojun Guo, Shaowei Li, Xiaobo Zhu, Yangsen Ye, Yulin Wu, Yu-Ran Zhang, Yu Xu, Zheng-Hang Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-17T05:48:29Z","title":"Observation of strong and weak thermalization in a superconducting quantum processor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.08587","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:a594852cf539a073f6fdd05e8986d1774d394ffa3f856e3eb658cb1a96380fe4","target":"record","created_at":"2026-07-05T02:56:38Z","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":"5c478e45f21c59480f09fb86110579968cd43efec34d5508e57a7769a6db852f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-02-17T05:48:29Z","title_canon_sha256":"b2a61399827d8248aa540f39638f91007661556e0f00dbe73ed5c34363c49f45"},"schema_version":"1.0","source":{"id":"2102.08587","kind":"arxiv","version":1}},"canonical_sha256":"ba55c7a8f52b1374433209195b770ff48a5e55bd990fe87c9391c2b05c7a7e14","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba55c7a8f52b1374433209195b770ff48a5e55bd990fe87c9391c2b05c7a7e14","first_computed_at":"2026-07-05T02:56:38.551883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:56:38.551883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CTg6MzqlRvkuLjh3KAZkW0v4PPV6SHYsuwgj8cVutcxRwMeink0U/xPS48H5YIjZZwer1YyUuDyzw3IyqSHACA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:56:38.552285Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.08587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a594852cf539a073f6fdd05e8986d1774d394ffa3f856e3eb658cb1a96380fe4","sha256:f5ba316bbbb7d9ea9e6580ced82358a6d7d302bf27cd55734643bac3703aff55"],"state_sha256":"08385255de57d069240e6f13114132a25ebf90d73e7437739dd3d13213b5ce07"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BcGecO0EQcyT4CzcGenSRVP69TeJdEf0c9dSgyH2rftRSbODAi1fcIeYBhKp11s2FOX2z1SpmPIhEWShkTn2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T01:29:20.158875Z","bundle_sha256":"ba9db3031295662e46bcc0d3401690aab93f3cc7261678c08ac780db34cf48a1"}}