{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:LL2UI43NQPGKZROQEX2PQM73VF","short_pith_number":"pith:LL2UI43N","canonical_record":{"source":{"id":"2607.25690","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-28T13:05:32Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.comp-ph"],"title_canon_sha256":"c9580563f2c66c865b363b5c153594ba7ee2bc7d01c59809b385a8e3263760ed","abstract_canon_sha256":"6a11e4c24661d4cd4e3afce53c7db4dd0b9c702a7097626d122318f98e1a68f7"},"schema_version":"1.0"},"canonical_sha256":"5af544736d83ccacc5d025f4f833fba956c7a9507f21facf6d20a392cedecd62","source":{"kind":"arxiv","id":"2607.25690","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.25690","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"arxiv_version","alias_value":"2607.25690v1","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.25690","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_12","alias_value":"LL2UI43NQPGK","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"LL2UI43NQPGKZROQ","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"LL2UI43N","created_at":"2026-07-29T01:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:LL2UI43NQPGKZROQEX2PQM73VF","target":"record","payload":{"canonical_record":{"source":{"id":"2607.25690","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-28T13:05:32Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.comp-ph"],"title_canon_sha256":"c9580563f2c66c865b363b5c153594ba7ee2bc7d01c59809b385a8e3263760ed","abstract_canon_sha256":"6a11e4c24661d4cd4e3afce53c7db4dd0b9c702a7097626d122318f98e1a68f7"},"schema_version":"1.0"},"canonical_sha256":"5af544736d83ccacc5d025f4f833fba956c7a9507f21facf6d20a392cedecd62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-29T01:25:57.234201Z","signature_b64":"CvAor8VvBdFQUfNCk9X+BwpSHlLeC6plK8o9mzIFuv2aKy+Vaz4n5dd8rx7Q1lVJVcdcNoSqnjXrFObn/t3PAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5af544736d83ccacc5d025f4f833fba956c7a9507f21facf6d20a392cedecd62","last_reissued_at":"2026-07-29T01:25:57.233298Z","signature_status":"signed_v1","first_computed_at":"2026-07-29T01:25:57.233298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.25690","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":"2026-07-29T01:25:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y0vU6dkNmXYRtQJ7vL6BoXHyIkv3XmJ+8RAkm2hO7QhBNFczAootsG1yV5JqtFAvsoo1l0VgEl59z7TPELRqDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T17:48:43.526818Z"},"content_sha256":"d9f78b5d7d225240e87401cc9d6be222e849940991225953f42651b177d24c38","schema_version":"1.0","event_id":"sha256:d9f78b5d7d225240e87401cc9d6be222e849940991225953f42651b177d24c38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:LL2UI43NQPGKZROQEX2PQM73VF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-Principles Wannier Representation of Proximity Effects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.comp-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Denis Kochan, Johan F\\'elisaz, Oleg V. Yazyev, Stepan S. Tsirkin, Yaroslav Zhumagulov","submitted_at":"2026-07-28T13:05:32Z","abstract_excerpt":"Proximity effects in layered heterostructures are usually represented by static parameters fitted to first-principles bands, which discards the energy dependence of the virtual hybridization, the momentum transfer, and the spatial structure. We overcome this limitation by deriving a dynamical proximity operator $\\mathcal{V}(\\mathbf{k},\\mathbf{k}';\\omega)$ directly from density functional theory, downfolding the Kohn-Sham Hamiltonian of the heterostructure onto a fixed low-energy target Wannier subspace and reproducing its spectrum exactly within that subspace. The construction separates direct"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.25690","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/2607.25690/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":"2026-07-29T01:25:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AsLblUawCcAXQRs8vXr8yrBx3K1H6RSwJjvSij2tHkMHDvuKtlMQg3pe3rB6gXXQ9h8zILqfwBnm5R2qj8UaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T17:48:43.527324Z"},"content_sha256":"06440feb5b7b664b4793cacefe6e74784a41211f44176fbe56be557c69e60e38","schema_version":"1.0","event_id":"sha256:06440feb5b7b664b4793cacefe6e74784a41211f44176fbe56be557c69e60e38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LL2UI43NQPGKZROQEX2PQM73VF/bundle.json","state_url":"https://pith.science/pith/LL2UI43NQPGKZROQEX2PQM73VF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LL2UI43NQPGKZROQEX2PQM73VF/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":"2026-08-22T17:48:43Z","links":{"resolver":"https://pith.science/pith/LL2UI43NQPGKZROQEX2PQM73VF","bundle":"https://pith.science/pith/LL2UI43NQPGKZROQEX2PQM73VF/bundle.json","state":"https://pith.science/pith/LL2UI43NQPGKZROQEX2PQM73VF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LL2UI43NQPGKZROQEX2PQM73VF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:LL2UI43NQPGKZROQEX2PQM73VF","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":"6a11e4c24661d4cd4e3afce53c7db4dd0b9c702a7097626d122318f98e1a68f7","cross_cats_sorted":["cond-mat.mtrl-sci","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-28T13:05:32Z","title_canon_sha256":"c9580563f2c66c865b363b5c153594ba7ee2bc7d01c59809b385a8e3263760ed"},"schema_version":"1.0","source":{"id":"2607.25690","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.25690","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"arxiv_version","alias_value":"2607.25690v1","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.25690","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_12","alias_value":"LL2UI43NQPGK","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"LL2UI43NQPGKZROQ","created_at":"2026-07-29T01:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"LL2UI43N","created_at":"2026-07-29T01:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:06440feb5b7b664b4793cacefe6e74784a41211f44176fbe56be557c69e60e38","target":"graph","created_at":"2026-07-29T01:25:57Z","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/2607.25690/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Proximity effects in layered heterostructures are usually represented by static parameters fitted to first-principles bands, which discards the energy dependence of the virtual hybridization, the momentum transfer, and the spatial structure. We overcome this limitation by deriving a dynamical proximity operator $\\mathcal{V}(\\mathbf{k},\\mathbf{k}';\\omega)$ directly from density functional theory, downfolding the Kohn-Sham Hamiltonian of the heterostructure onto a fixed low-energy target Wannier subspace and reproducing its spectrum exactly within that subspace. The construction separates direct","authors_text":"Denis Kochan, Johan F\\'elisaz, Oleg V. Yazyev, Stepan S. Tsirkin, Yaroslav Zhumagulov","cross_cats":["cond-mat.mtrl-sci","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-28T13:05:32Z","title":"First-Principles Wannier Representation of Proximity Effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.25690","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:d9f78b5d7d225240e87401cc9d6be222e849940991225953f42651b177d24c38","target":"record","created_at":"2026-07-29T01:25:57Z","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":"6a11e4c24661d4cd4e3afce53c7db4dd0b9c702a7097626d122318f98e1a68f7","cross_cats_sorted":["cond-mat.mtrl-sci","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-28T13:05:32Z","title_canon_sha256":"c9580563f2c66c865b363b5c153594ba7ee2bc7d01c59809b385a8e3263760ed"},"schema_version":"1.0","source":{"id":"2607.25690","kind":"arxiv","version":1}},"canonical_sha256":"5af544736d83ccacc5d025f4f833fba956c7a9507f21facf6d20a392cedecd62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5af544736d83ccacc5d025f4f833fba956c7a9507f21facf6d20a392cedecd62","first_computed_at":"2026-07-29T01:25:57.233298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-29T01:25:57.233298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CvAor8VvBdFQUfNCk9X+BwpSHlLeC6plK8o9mzIFuv2aKy+Vaz4n5dd8rx7Q1lVJVcdcNoSqnjXrFObn/t3PAg==","signature_status":"signed_v1","signed_at":"2026-07-29T01:25:57.234201Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.25690","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9f78b5d7d225240e87401cc9d6be222e849940991225953f42651b177d24c38","sha256:06440feb5b7b664b4793cacefe6e74784a41211f44176fbe56be557c69e60e38"],"state_sha256":"93e22ac5c8e07c2f9ec4429fa722b03ade971cc3b615fbc3d462401118b3e7a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"poatJdDyS3XxDkfVb+FsswWlGfFG6JS2nSqBJlL4qsqLwSO5XCGvnMV6y3HNPU6LhtLDGrKfqAjVX1+1Gw0nAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T17:48:43.532099Z","bundle_sha256":"c3ed25df851c2e25a056dcb6832caa52317016734b87f6a71b17665ec9723180"}}