{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZKQ4TFOWECZRXRR436PMTT2TYU","short_pith_number":"pith:ZKQ4TFOW","canonical_record":{"source":{"id":"2509.09253","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-09-11T08:38:13Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"38b7285b89f1b6bcd5c834ac4bdf9d87c476a368122ff96663d38894cb59f1c4","abstract_canon_sha256":"3e593088796ce70c4b8b032034cd56d2de745b5bf868caa454dd88c1608b85f4"},"schema_version":"1.0"},"canonical_sha256":"caa1c995d620b31bc63cdf9ec9cf53c53895f70c454bc5afffcdb6ca0807da5d","source":{"kind":"arxiv","id":"2509.09253","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.09253","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"2509.09253v4","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.09253","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZKQ4TFOWECZR","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZKQ4TFOWECZRXRR4","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZKQ4TFOW","created_at":"2026-06-23T02:12:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZKQ4TFOWECZRXRR436PMTT2TYU","target":"record","payload":{"canonical_record":{"source":{"id":"2509.09253","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-09-11T08:38:13Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"38b7285b89f1b6bcd5c834ac4bdf9d87c476a368122ff96663d38894cb59f1c4","abstract_canon_sha256":"3e593088796ce70c4b8b032034cd56d2de745b5bf868caa454dd88c1608b85f4"},"schema_version":"1.0"},"canonical_sha256":"caa1c995d620b31bc63cdf9ec9cf53c53895f70c454bc5afffcdb6ca0807da5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:12:33.246936Z","signature_b64":"GF4y/bYQY9498o4J9waVchGbNwlT5ZQ9hBWQvsIl2uF5Q0Xz9uSCeuuT+LuLIVOpawDIkMtKFc+CMI8+jLO6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"caa1c995d620b31bc63cdf9ec9cf53c53895f70c454bc5afffcdb6ca0807da5d","last_reissued_at":"2026-06-23T02:12:33.246472Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:12:33.246472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.09253","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T02:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eCP0x/V++0rNZw3ZGSzTZEBfCr5O4k8ma/u1XHVXRzpLsY/p63By06t+Bp42sNgh6e5lfcO58WLA8ZnyWaF3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T09:19:53.666589Z"},"content_sha256":"e71b635652c656578f096965da436db3b59552ea199747e677ae2e7fa41fc19a","schema_version":"1.0","event_id":"sha256:e71b635652c656578f096965da436db3b59552ea199747e677ae2e7fa41fc19a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZKQ4TFOWECZRXRR436PMTT2TYU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"General ab initio framework for electronic-order-induced lattice-dynamics symmetry breaking","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Mengqi Wang, Pan Zhang, Shuai Zhang, Tiantian Zhang","submitted_at":"2025-09-11T08:38:13Z","abstract_excerpt":"Conventional \\textit{ab initio} approaches are unable to describe phonon time-reversal symmetry ($\\mathcal{T}$) breaking. Here, we develop an \\textit{ab initio} framework, grounded in molecular Berry curvature (MBC) theory, that captures electronic-order-driven symmetry breaking in lattice dynamics. Using Co$_3$Sn$_2$S$_2$ as a model system, our \\textit{ab initio} framework yields phonon spectra that break both $\\mathcal{T}$ and mirror symmetries, quantitatively reproduce the observed phonon splittings observed in experiments, and reveal distinct microscopic origins for the $E_g$ and $E_u$ mod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.09253","kind":"arxiv","version":4},"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/2509.09253/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":"2026-06-23T02:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mxFvxopK5J4oVmj5Fh9ajkO9Wtt5UA52ZKmtUZ+RwjEbnRozqj4WlfdOX4An42dMH8vtoyLUifQWTqBCbSJEDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T09:19:53.666980Z"},"content_sha256":"1a381ad33546903ec08649b1437f9c7411955bacf63960354b47d1a67177d194","schema_version":"1.0","event_id":"sha256:1a381ad33546903ec08649b1437f9c7411955bacf63960354b47d1a67177d194"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/bundle.json","state_url":"https://pith.science/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/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":"2026-07-14T09:19:53Z","links":{"resolver":"https://pith.science/pith/ZKQ4TFOWECZRXRR436PMTT2TYU","bundle":"https://pith.science/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/bundle.json","state":"https://pith.science/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZKQ4TFOWECZRXRR436PMTT2TYU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZKQ4TFOWECZRXRR436PMTT2TYU","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":"3e593088796ce70c4b8b032034cd56d2de745b5bf868caa454dd88c1608b85f4","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-09-11T08:38:13Z","title_canon_sha256":"38b7285b89f1b6bcd5c834ac4bdf9d87c476a368122ff96663d38894cb59f1c4"},"schema_version":"1.0","source":{"id":"2509.09253","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.09253","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"2509.09253v4","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.09253","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZKQ4TFOWECZR","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZKQ4TFOWECZRXRR4","created_at":"2026-06-23T02:12:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZKQ4TFOW","created_at":"2026-06-23T02:12:33Z"}],"graph_snapshots":[{"event_id":"sha256:1a381ad33546903ec08649b1437f9c7411955bacf63960354b47d1a67177d194","target":"graph","created_at":"2026-06-23T02:12:33Z","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/2509.09253/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Conventional \\textit{ab initio} approaches are unable to describe phonon time-reversal symmetry ($\\mathcal{T}$) breaking. Here, we develop an \\textit{ab initio} framework, grounded in molecular Berry curvature (MBC) theory, that captures electronic-order-driven symmetry breaking in lattice dynamics. Using Co$_3$Sn$_2$S$_2$ as a model system, our \\textit{ab initio} framework yields phonon spectra that break both $\\mathcal{T}$ and mirror symmetries, quantitatively reproduce the observed phonon splittings observed in experiments, and reveal distinct microscopic origins for the $E_g$ and $E_u$ mod","authors_text":"Mengqi Wang, Pan Zhang, Shuai Zhang, Tiantian Zhang","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-09-11T08:38:13Z","title":"General ab initio framework for electronic-order-induced lattice-dynamics symmetry breaking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.09253","kind":"arxiv","version":4},"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:e71b635652c656578f096965da436db3b59552ea199747e677ae2e7fa41fc19a","target":"record","created_at":"2026-06-23T02:12:33Z","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":"3e593088796ce70c4b8b032034cd56d2de745b5bf868caa454dd88c1608b85f4","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-09-11T08:38:13Z","title_canon_sha256":"38b7285b89f1b6bcd5c834ac4bdf9d87c476a368122ff96663d38894cb59f1c4"},"schema_version":"1.0","source":{"id":"2509.09253","kind":"arxiv","version":4}},"canonical_sha256":"caa1c995d620b31bc63cdf9ec9cf53c53895f70c454bc5afffcdb6ca0807da5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"caa1c995d620b31bc63cdf9ec9cf53c53895f70c454bc5afffcdb6ca0807da5d","first_computed_at":"2026-06-23T02:12:33.246472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:12:33.246472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GF4y/bYQY9498o4J9waVchGbNwlT5ZQ9hBWQvsIl2uF5Q0Xz9uSCeuuT+LuLIVOpawDIkMtKFc+CMI8+jLO6Cw==","signature_status":"signed_v1","signed_at":"2026-06-23T02:12:33.246936Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.09253","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e71b635652c656578f096965da436db3b59552ea199747e677ae2e7fa41fc19a","sha256:1a381ad33546903ec08649b1437f9c7411955bacf63960354b47d1a67177d194"],"state_sha256":"96261a47069eb7804b84586c0d23efff2800abefff9214690d4208ee023b9562"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OLm+AeMQIyS4ccpHbT8GekZifVx5vC0qEjHYWwchZiFiWLICDw5m4ZtIHN2KKX7ZYgzwu1VVaSEl44Qg3uCKAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T09:19:53.669109Z","bundle_sha256":"b2670dd86bae3ef9c40cfad467019ad9e8d36fa0ef4eb3090bd7cca30140c3ee"}}