{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:SVYO2N7T3H5RZWQMHOPHRV2ICL","short_pith_number":"pith:SVYO2N7T","canonical_record":{"source":{"id":"2209.06543","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2022-09-14T10:44:26Z","cross_cats_sorted":["cond-mat.stat-mech","quant-ph"],"title_canon_sha256":"9cf666ce3555ad50ed6b15e39426d77cae600fb89255437d9c6a45f05bb3a482","abstract_canon_sha256":"c2e307d20bedcfeb957ca2cc79521d764d0df7bea7b6e1fcc94363573ef87e46"},"schema_version":"1.0"},"canonical_sha256":"9570ed37f3d9fb1cda0c3b9e78d74812ede10c379156db81606c841db647cf48","source":{"kind":"arxiv","id":"2209.06543","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.06543","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"2209.06543v1","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.06543","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"SVYO2N7T3H5R","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_16","alias_value":"SVYO2N7T3H5RZWQM","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_8","alias_value":"SVYO2N7T","created_at":"2026-07-05T06:08:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:SVYO2N7T3H5RZWQMHOPHRV2ICL","target":"record","payload":{"canonical_record":{"source":{"id":"2209.06543","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2022-09-14T10:44:26Z","cross_cats_sorted":["cond-mat.stat-mech","quant-ph"],"title_canon_sha256":"9cf666ce3555ad50ed6b15e39426d77cae600fb89255437d9c6a45f05bb3a482","abstract_canon_sha256":"c2e307d20bedcfeb957ca2cc79521d764d0df7bea7b6e1fcc94363573ef87e46"},"schema_version":"1.0"},"canonical_sha256":"9570ed37f3d9fb1cda0c3b9e78d74812ede10c379156db81606c841db647cf48","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:08:08.475168Z","signature_b64":"176UzCYxrFdtJB1qZoCH+lfq+NSRYuG1sOVUXfL5+EG3//RX7tg3h2SE6vcWuF4cjsURvFOqwtezSSnIP5Z5Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9570ed37f3d9fb1cda0c3b9e78d74812ede10c379156db81606c841db647cf48","last_reissued_at":"2026-07-05T06:08:08.474704Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:08:08.474704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.06543","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":"2026-07-05T06:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ii3gwskkIuqlnYZj+9I3Pgdp4ksbIbGniDEshX/TLt79W7cFzGJtL6KrvtKjjMCCCvEgL8zXatI/niTlve8lBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T05:48:49.713998Z"},"content_sha256":"c824d9e556b48f7feef173214482134627c010acb424d8a15e1c7ad8a9668e8b","schema_version":"1.0","event_id":"sha256:c824d9e556b48f7feef173214482134627c010acb424d8a15e1c7ad8a9668e8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:SVYO2N7T3H5RZWQMHOPHRV2ICL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunable phase transition in a dissipative two-spin system: A renormalization group study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","quant-ph"],"primary_cat":"cond-mat.str-el","authors_text":"Xingdong Luo","submitted_at":"2022-09-14T10:44:26Z","abstract_excerpt":"We proposed and theoretically studied a model of two separated spins coupled to a common bosonic bath. In our SU(2)-symmetric model, the phase transition point and the stable fixed point representing the nonclassical phase can be continuously tuned by the distance between the two spins. Thus the fixed point collision and annihilation (FPCAA) could be achieved by simply changing the distance. Moreover, we studied in detail variation of the critical value when the distance is changed. Finally, we also discussed several possible generalizations of our model which may be worth further studying. Ou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.06543","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/2209.06543/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":"2026-07-05T06:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IlnfkaK3Rw5PC2ToxBGX5ivhRG+JDD4RwRpfSPcaQG34KalJAlESJNNa/3DQOUeSDYMQlWB/rCok3GhZSRbZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T05:48:49.714887Z"},"content_sha256":"f9fadf15a0c66a0c8b054898356a14e0f3dd0bb5036a71eb789cf9b8ec55a149","schema_version":"1.0","event_id":"sha256:f9fadf15a0c66a0c8b054898356a14e0f3dd0bb5036a71eb789cf9b8ec55a149"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/bundle.json","state_url":"https://pith.science/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/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":"2026-08-22T05:48:49Z","links":{"resolver":"https://pith.science/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL","bundle":"https://pith.science/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/bundle.json","state":"https://pith.science/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SVYO2N7T3H5RZWQMHOPHRV2ICL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:SVYO2N7T3H5RZWQMHOPHRV2ICL","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":"c2e307d20bedcfeb957ca2cc79521d764d0df7bea7b6e1fcc94363573ef87e46","cross_cats_sorted":["cond-mat.stat-mech","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2022-09-14T10:44:26Z","title_canon_sha256":"9cf666ce3555ad50ed6b15e39426d77cae600fb89255437d9c6a45f05bb3a482"},"schema_version":"1.0","source":{"id":"2209.06543","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.06543","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"2209.06543v1","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.06543","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"SVYO2N7T3H5R","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_16","alias_value":"SVYO2N7T3H5RZWQM","created_at":"2026-07-05T06:08:08Z"},{"alias_kind":"pith_short_8","alias_value":"SVYO2N7T","created_at":"2026-07-05T06:08:08Z"}],"graph_snapshots":[{"event_id":"sha256:f9fadf15a0c66a0c8b054898356a14e0f3dd0bb5036a71eb789cf9b8ec55a149","target":"graph","created_at":"2026-07-05T06:08:08Z","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/2209.06543/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We proposed and theoretically studied a model of two separated spins coupled to a common bosonic bath. In our SU(2)-symmetric model, the phase transition point and the stable fixed point representing the nonclassical phase can be continuously tuned by the distance between the two spins. Thus the fixed point collision and annihilation (FPCAA) could be achieved by simply changing the distance. Moreover, we studied in detail variation of the critical value when the distance is changed. Finally, we also discussed several possible generalizations of our model which may be worth further studying. Ou","authors_text":"Xingdong Luo","cross_cats":["cond-mat.stat-mech","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2022-09-14T10:44:26Z","title":"Tunable phase transition in a dissipative two-spin system: A renormalization group study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.06543","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:c824d9e556b48f7feef173214482134627c010acb424d8a15e1c7ad8a9668e8b","target":"record","created_at":"2026-07-05T06:08:08Z","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":"c2e307d20bedcfeb957ca2cc79521d764d0df7bea7b6e1fcc94363573ef87e46","cross_cats_sorted":["cond-mat.stat-mech","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2022-09-14T10:44:26Z","title_canon_sha256":"9cf666ce3555ad50ed6b15e39426d77cae600fb89255437d9c6a45f05bb3a482"},"schema_version":"1.0","source":{"id":"2209.06543","kind":"arxiv","version":1}},"canonical_sha256":"9570ed37f3d9fb1cda0c3b9e78d74812ede10c379156db81606c841db647cf48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9570ed37f3d9fb1cda0c3b9e78d74812ede10c379156db81606c841db647cf48","first_computed_at":"2026-07-05T06:08:08.474704Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:08:08.474704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"176UzCYxrFdtJB1qZoCH+lfq+NSRYuG1sOVUXfL5+EG3//RX7tg3h2SE6vcWuF4cjsURvFOqwtezSSnIP5Z5Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:08:08.475168Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.06543","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c824d9e556b48f7feef173214482134627c010acb424d8a15e1c7ad8a9668e8b","sha256:f9fadf15a0c66a0c8b054898356a14e0f3dd0bb5036a71eb789cf9b8ec55a149"],"state_sha256":"31c83323e62061d0575bd4b9dde137b1495afeb497a43fd1da91ff1774da3b74"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JKwvD75hMSop+zjDu4sISK/LemZ5IH/5MebJTYES4EAPPG/Keuj8px3WRCX4LF6q6YjM266WggqsG1xgtVfNCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T05:48:49.719998Z","bundle_sha256":"6bd02fc3c207551fa298b03858b16c08369b502ad52102f8b4e695fafa310c1e"}}