{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:U75PMVEHTZG7TOGPNARJDEK63Z","short_pith_number":"pith:U75PMVEH","canonical_record":{"source":{"id":"2203.08458","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-16T08:33:34Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"5e3bbea0ee5ce57c3784a24ef03a75d2380742ba3ef7e157ef57c6c8dcad3f88","abstract_canon_sha256":"bb0bb24c676d11447bd44c424d620f5d8795da9d93ecacda6da24756ae5aab53"},"schema_version":"1.0"},"canonical_sha256":"a7faf654879e4df9b8cf682291915ede6fc7036bc43420c7e5922766532a098a","source":{"kind":"arxiv","id":"2203.08458","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.08458","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"arxiv_version","alias_value":"2203.08458v2","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.08458","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_12","alias_value":"U75PMVEHTZG7","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_16","alias_value":"U75PMVEHTZG7TOGP","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_8","alias_value":"U75PMVEH","created_at":"2026-07-05T04:48:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:U75PMVEHTZG7TOGPNARJDEK63Z","target":"record","payload":{"canonical_record":{"source":{"id":"2203.08458","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-16T08:33:34Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"5e3bbea0ee5ce57c3784a24ef03a75d2380742ba3ef7e157ef57c6c8dcad3f88","abstract_canon_sha256":"bb0bb24c676d11447bd44c424d620f5d8795da9d93ecacda6da24756ae5aab53"},"schema_version":"1.0"},"canonical_sha256":"a7faf654879e4df9b8cf682291915ede6fc7036bc43420c7e5922766532a098a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:48:11.537137Z","signature_b64":"EvjwEZ4UbgEupNb2Yqd3+Ea3bj7756R0X1PqHZgBi2ODalJfNG42Rx4f0qxnjNvv3Kud/cQeNp0XLXk+i8tvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7faf654879e4df9b8cf682291915ede6fc7036bc43420c7e5922766532a098a","last_reissued_at":"2026-07-05T04:48:11.536652Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:48:11.536652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.08458","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:48:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kqDxY/JWxOgwk6/HlGjgu4x+BvXSrrPaIBJv1GClULgrqDFhlOcMi1P380Hsnb3eHnrt7uEbjD4iQqC1Mgz1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:56:32.262010Z"},"content_sha256":"431c368925a50ae27bbbe75477bdc102f2484af1e246f6cd177547c6b5ceece4","schema_version":"1.0","event_id":"sha256:431c368925a50ae27bbbe75477bdc102f2484af1e246f6cd177547c6b5ceece4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:U75PMVEHTZG7TOGPNARJDEK63Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simple machine-learned interatomic potentials for complex alloys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Flyura Djurabekova, Jesper Byggm\\\"astar, Kai Nordlund","submitted_at":"2022-03-16T08:33:34Z","abstract_excerpt":"Developing data-driven machine-learning interatomic potentials for materials containing many elements becomes increasingly challenging due to the vast configuration space that must be sampled by the training data. We study the learning rates and achievable accuracy of machine-learning interatomic potentials for many-element alloys with different combinations of descriptors for the local atomic environments. We show that for a five-element alloy system, potentials using simple low-dimensional descriptors can reach meV/atom-accuracy with modestly sized training datasets, significantly outperform"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.08458","kind":"arxiv","version":2},"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/2203.08458/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":"2026-07-05T04:48:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h9IoEaBzheeMzvdB3gitv3NeiggDFbJ1Itk9b7H8dS1Cfs8uXJKFiHWDyU3bRvwgiFj9627p6c0/rM29PGeZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:56:32.262594Z"},"content_sha256":"c19d4a7015fb684c272f4451c20a073401f1b28e0bf9358ef1efe44a3c86414d","schema_version":"1.0","event_id":"sha256:c19d4a7015fb684c272f4451c20a073401f1b28e0bf9358ef1efe44a3c86414d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U75PMVEHTZG7TOGPNARJDEK63Z/bundle.json","state_url":"https://pith.science/pith/U75PMVEHTZG7TOGPNARJDEK63Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U75PMVEHTZG7TOGPNARJDEK63Z/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":"2026-08-04T20:56:32Z","links":{"resolver":"https://pith.science/pith/U75PMVEHTZG7TOGPNARJDEK63Z","bundle":"https://pith.science/pith/U75PMVEHTZG7TOGPNARJDEK63Z/bundle.json","state":"https://pith.science/pith/U75PMVEHTZG7TOGPNARJDEK63Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U75PMVEHTZG7TOGPNARJDEK63Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:U75PMVEHTZG7TOGPNARJDEK63Z","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":"bb0bb24c676d11447bd44c424d620f5d8795da9d93ecacda6da24756ae5aab53","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-16T08:33:34Z","title_canon_sha256":"5e3bbea0ee5ce57c3784a24ef03a75d2380742ba3ef7e157ef57c6c8dcad3f88"},"schema_version":"1.0","source":{"id":"2203.08458","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.08458","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"arxiv_version","alias_value":"2203.08458v2","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.08458","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_12","alias_value":"U75PMVEHTZG7","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_16","alias_value":"U75PMVEHTZG7TOGP","created_at":"2026-07-05T04:48:11Z"},{"alias_kind":"pith_short_8","alias_value":"U75PMVEH","created_at":"2026-07-05T04:48:11Z"}],"graph_snapshots":[{"event_id":"sha256:c19d4a7015fb684c272f4451c20a073401f1b28e0bf9358ef1efe44a3c86414d","target":"graph","created_at":"2026-07-05T04:48:11Z","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/2203.08458/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Developing data-driven machine-learning interatomic potentials for materials containing many elements becomes increasingly challenging due to the vast configuration space that must be sampled by the training data. We study the learning rates and achievable accuracy of machine-learning interatomic potentials for many-element alloys with different combinations of descriptors for the local atomic environments. We show that for a five-element alloy system, potentials using simple low-dimensional descriptors can reach meV/atom-accuracy with modestly sized training datasets, significantly outperform","authors_text":"Flyura Djurabekova, Jesper Byggm\\\"astar, Kai Nordlund","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-16T08:33:34Z","title":"Simple machine-learned interatomic potentials for complex alloys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.08458","kind":"arxiv","version":2},"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":"sha256:431c368925a50ae27bbbe75477bdc102f2484af1e246f6cd177547c6b5ceece4","target":"record","created_at":"2026-07-05T04:48:11Z","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":"bb0bb24c676d11447bd44c424d620f5d8795da9d93ecacda6da24756ae5aab53","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-16T08:33:34Z","title_canon_sha256":"5e3bbea0ee5ce57c3784a24ef03a75d2380742ba3ef7e157ef57c6c8dcad3f88"},"schema_version":"1.0","source":{"id":"2203.08458","kind":"arxiv","version":2}},"canonical_sha256":"a7faf654879e4df9b8cf682291915ede6fc7036bc43420c7e5922766532a098a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7faf654879e4df9b8cf682291915ede6fc7036bc43420c7e5922766532a098a","first_computed_at":"2026-07-05T04:48:11.536652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:48:11.536652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EvjwEZ4UbgEupNb2Yqd3+Ea3bj7756R0X1PqHZgBi2ODalJfNG42Rx4f0qxnjNvv3Kud/cQeNp0XLXk+i8tvCg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:48:11.537137Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.08458","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:431c368925a50ae27bbbe75477bdc102f2484af1e246f6cd177547c6b5ceece4","sha256:c19d4a7015fb684c272f4451c20a073401f1b28e0bf9358ef1efe44a3c86414d"],"state_sha256":"2f928689dbee413a64d25d712e8142ecabdea9b93dfb3500460935e375de6132"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HGxbNjcev+MHipa17wtweGaeQWwlRFw/SZqQlmz7+4E6CoOlpxIn3bgCpI1QSzbk1vB9D6imiMO+gSJUKem/Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:56:32.266597Z","bundle_sha256":"3eed2b851a32fdc6a60a03c839befb557715c6336847cdc836b20d68752be25f"}}