{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:OZS6AWGYKNBJAIQNJ3ALSC22XH","short_pith_number":"pith:OZS6AWGY","schema_version":"1.0","canonical_sha256":"7665e058d8534290220d4ec0b90b5ab9f028f18d15be5963db659e412c94ad50","source":{"kind":"arxiv","id":"2503.14466","version":1},"attestation_state":"computed","paper":{"title":"Inescapable anisotropy of non-reciprocal XY models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Alexandre Solon, Dawid Dopierala, Hugues Chat\\'e, Xia-qing Shi","submitted_at":"2025-03-18T17:43:32Z","abstract_excerpt":"We investigate non-reciprocal XY (NRXY) models defined on two-dimensional lattices in which the coupling strength of a spin with its neighbors varies with their position in the frame defined by the current spin orientation. As expected from the seminal work of Dadhichi et al., Phys. Rev. E 101, 052601 (2020), we first show that non-reciprocity is akin to a self-propulsion: we derive a mean-field continuous theory identical to that of constant-density flocks. Like the latter, NRXY models exhibit a long-range ordered phase that is metastable to the nucleation of topological defects, and their as"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2503.14466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-03-18T17:43:32Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"3f8e8aeb9ef7924cb09fe1df1ff9787d2167e27de65b9478a7ad72ab0ff9b05f","abstract_canon_sha256":"8cd1d72e77477608eecdcdd924d9ec8d08ea664997a1638d418b99043ec127d4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:34:03.496695Z","signature_b64":"4HuldnFGplQNYVwkirlpSRL0zxhOhrwRZ32FS90ERGG5p3XrJQAk241zV9MW729lX5L9xXQ7VjGYsEyXF9A0DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7665e058d8534290220d4ec0b90b5ab9f028f18d15be5963db659e412c94ad50","last_reissued_at":"2026-07-05T10:34:03.495687Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:34:03.495687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Inescapable anisotropy of non-reciprocal XY models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Alexandre Solon, Dawid Dopierala, Hugues Chat\\'e, Xia-qing Shi","submitted_at":"2025-03-18T17:43:32Z","abstract_excerpt":"We investigate non-reciprocal XY (NRXY) models defined on two-dimensional lattices in which the coupling strength of a spin with its neighbors varies with their position in the frame defined by the current spin orientation. As expected from the seminal work of Dadhichi et al., Phys. Rev. E 101, 052601 (2020), we first show that non-reciprocity is akin to a self-propulsion: we derive a mean-field continuous theory identical to that of constant-density flocks. Like the latter, NRXY models exhibit a long-range ordered phase that is metastable to the nucleation of topological defects, and their as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.14466","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/2503.14466/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2503.14466","created_at":"2026-07-05T10:34:03.495833+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.14466v1","created_at":"2026-07-05T10:34:03.495833+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.14466","created_at":"2026-07-05T10:34:03.495833+00:00"},{"alias_kind":"pith_short_12","alias_value":"OZS6AWGYKNBJ","created_at":"2026-07-05T10:34:03.495833+00:00"},{"alias_kind":"pith_short_16","alias_value":"OZS6AWGYKNBJAIQN","created_at":"2026-07-05T10:34:03.495833+00:00"},{"alias_kind":"pith_short_8","alias_value":"OZS6AWGY","created_at":"2026-07-05T10:34:03.495833+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2505.21602","citing_title":"Response to the comment on The inconvenient truth about flocks by Chat\\'e and Solon","ref_index":14,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH","json":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH.json","graph_json":"https://pith.science/api/pith-number/OZS6AWGYKNBJAIQNJ3ALSC22XH/graph.json","events_json":"https://pith.science/api/pith-number/OZS6AWGYKNBJAIQNJ3ALSC22XH/events.json","paper":"https://pith.science/paper/OZS6AWGY"},"agent_actions":{"view_html":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH","download_json":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH.json","view_paper":"https://pith.science/paper/OZS6AWGY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.14466&json=true","fetch_graph":"https://pith.science/api/pith-number/OZS6AWGYKNBJAIQNJ3ALSC22XH/graph.json","fetch_events":"https://pith.science/api/pith-number/OZS6AWGYKNBJAIQNJ3ALSC22XH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH/action/storage_attestation","attest_author":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH/action/author_attestation","sign_citation":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH/action/citation_signature","submit_replication":"https://pith.science/pith/OZS6AWGYKNBJAIQNJ3ALSC22XH/action/replication_record"}},"created_at":"2026-07-05T10:34:03.495833+00:00","updated_at":"2026-07-05T10:34:03.495833+00:00"}