{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TQTVOC34XKOMMKJZGVVGAJOSC5","short_pith_number":"pith:TQTVOC34","canonical_record":{"source":{"id":"1603.02732","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-08T23:03:21Z","cross_cats_sorted":[],"title_canon_sha256":"1bd13019c2509f243bab2dabbe8efc74c3ea3189372a33de1f9faa096ee91f37","abstract_canon_sha256":"79b5097af52ea4d44502e72c187f52da209cd5f37d036f90a5159335c15a18ad"},"schema_version":"1.0"},"canonical_sha256":"9c27570b7cba9cc62939356a6025d2175800c5c97a305201573be6ead730e99f","source":{"kind":"arxiv","id":"1603.02732","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.02732","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"1603.02732v2","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.02732","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"TQTVOC34XKOM","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"TQTVOC34XKOMMKJZ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"TQTVOC34","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TQTVOC34XKOMMKJZGVVGAJOSC5","target":"record","payload":{"canonical_record":{"source":{"id":"1603.02732","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-08T23:03:21Z","cross_cats_sorted":[],"title_canon_sha256":"1bd13019c2509f243bab2dabbe8efc74c3ea3189372a33de1f9faa096ee91f37","abstract_canon_sha256":"79b5097af52ea4d44502e72c187f52da209cd5f37d036f90a5159335c15a18ad"},"schema_version":"1.0"},"canonical_sha256":"9c27570b7cba9cc62939356a6025d2175800c5c97a305201573be6ead730e99f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:35.862681Z","signature_b64":"hART9CisxDUKEWJjOy0KtvST1/D3+ucIGBhd9bs2K9hbcKQ9X8KBQ7FfJPDWdszXykN1atcjjYJyzXJjvfo1DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c27570b7cba9cc62939356a6025d2175800c5c97a305201573be6ead730e99f","last_reissued_at":"2026-05-18T00:35:35.862081Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:35.862081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.02732","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":"2026-05-18T00:35:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ccLflvIydjcAkW0SGL8LcmiiMvVUDZzjwS600jHRepfYNI841nSP6iQ1WLp/sNC5j7O+hj55iw13mS9abn0pCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:02:17.661244Z"},"content_sha256":"1ffe33362d3ad4cadd89fcaf3dc441336dc9c603408ee078ac2209aff8a175f3","schema_version":"1.0","event_id":"sha256:1ffe33362d3ad4cadd89fcaf3dc441336dc9c603408ee078ac2209aff8a175f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TQTVOC34XKOMMKJZGVVGAJOSC5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SGO: An ultrafast engine for ab initio atomic structure global optimization by differential evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Lin-Wang Wang, Weile Jia, Zhanghui Chen","submitted_at":"2016-03-08T23:03:21Z","abstract_excerpt":"This paper presents a fast method for global search of atomic structures at ab initio level. The structures global optimization (SGO) engine consists of a high-efficiency differential evolution algorithm, accelerated local relaxation methods and an ultrafast plane-wave density functional theory code run on GPU machines. It can search the global-minimum configurations of crystals, two-dimensional materials and quantum clusters without symmetry restriction in a very short time (half or several hours). The engine is also able to search the energy landscape of a given system, which is useful for e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.02732","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":""},"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":"2026-05-18T00:35:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ymEnybDGWwMTRibrQsD1zEL/H51zkfJ6PbNfxVQtoqI6Yn05jvqR3gMSOV7xtD+lMoC4YykEDh7QFwoB3XpgAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:02:17.661957Z"},"content_sha256":"388f6f06b945516025b2d9c55948ea95b93ad704c765bfe36ace6bfaf6639fbc","schema_version":"1.0","event_id":"sha256:388f6f06b945516025b2d9c55948ea95b93ad704c765bfe36ace6bfaf6639fbc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/bundle.json","state_url":"https://pith.science/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/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":"2026-05-26T05:02:17Z","links":{"resolver":"https://pith.science/pith/TQTVOC34XKOMMKJZGVVGAJOSC5","bundle":"https://pith.science/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/bundle.json","state":"https://pith.science/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TQTVOC34XKOMMKJZGVVGAJOSC5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TQTVOC34XKOMMKJZGVVGAJOSC5","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":"79b5097af52ea4d44502e72c187f52da209cd5f37d036f90a5159335c15a18ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-08T23:03:21Z","title_canon_sha256":"1bd13019c2509f243bab2dabbe8efc74c3ea3189372a33de1f9faa096ee91f37"},"schema_version":"1.0","source":{"id":"1603.02732","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.02732","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"1603.02732v2","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.02732","created_at":"2026-05-18T00:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"TQTVOC34XKOM","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"TQTVOC34XKOMMKJZ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"TQTVOC34","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:388f6f06b945516025b2d9c55948ea95b93ad704c765bfe36ace6bfaf6639fbc","target":"graph","created_at":"2026-05-18T00:35:35Z","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"},"paper":{"abstract_excerpt":"This paper presents a fast method for global search of atomic structures at ab initio level. The structures global optimization (SGO) engine consists of a high-efficiency differential evolution algorithm, accelerated local relaxation methods and an ultrafast plane-wave density functional theory code run on GPU machines. It can search the global-minimum configurations of crystals, two-dimensional materials and quantum clusters without symmetry restriction in a very short time (half or several hours). The engine is also able to search the energy landscape of a given system, which is useful for e","authors_text":"Lin-Wang Wang, Weile Jia, Zhanghui Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-08T23:03:21Z","title":"SGO: An ultrafast engine for ab initio atomic structure global optimization by differential evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.02732","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":"sha256:1ffe33362d3ad4cadd89fcaf3dc441336dc9c603408ee078ac2209aff8a175f3","target":"record","created_at":"2026-05-18T00:35:35Z","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":"79b5097af52ea4d44502e72c187f52da209cd5f37d036f90a5159335c15a18ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-08T23:03:21Z","title_canon_sha256":"1bd13019c2509f243bab2dabbe8efc74c3ea3189372a33de1f9faa096ee91f37"},"schema_version":"1.0","source":{"id":"1603.02732","kind":"arxiv","version":2}},"canonical_sha256":"9c27570b7cba9cc62939356a6025d2175800c5c97a305201573be6ead730e99f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9c27570b7cba9cc62939356a6025d2175800c5c97a305201573be6ead730e99f","first_computed_at":"2026-05-18T00:35:35.862081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:35.862081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hART9CisxDUKEWJjOy0KtvST1/D3+ucIGBhd9bs2K9hbcKQ9X8KBQ7FfJPDWdszXykN1atcjjYJyzXJjvfo1DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:35.862681Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.02732","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ffe33362d3ad4cadd89fcaf3dc441336dc9c603408ee078ac2209aff8a175f3","sha256:388f6f06b945516025b2d9c55948ea95b93ad704c765bfe36ace6bfaf6639fbc"],"state_sha256":"f9a1dfd86e53e3eabd35590a8cfa315f7a29953f3f8ab697b71ebd6fa0d22667"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bhTO5fyX5W0bghBejlbcsXGRy4jy1FJm9xkz24djywGZej4B+HKeZ7y7HtGBRatB47OKT0GDgPjr4Y0XYy0oDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:02:17.665558Z","bundle_sha256":"7e67919b0264fcc34280cfb67e5c8a9747360d321576dad4513a0814157313b5"}}