{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BW2B2YUR3N35UUXHHOFALKFQJW","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":"b1424abe6aa0d34b9151b4d58045c02f84cddde26e84b4a5e6d4ea029015170b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T22:33:50Z","title_canon_sha256":"4afa054e606e225a8b2f397c3f8b26e26609009ef71f6d1c959f44ff7c766aa0"},"schema_version":"1.0","source":{"id":"1610.07673","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07673","created_at":"2026-05-18T00:42:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07673v2","created_at":"2026-05-18T00:42:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07673","created_at":"2026-05-18T00:42:51Z"},{"alias_kind":"pith_short_12","alias_value":"BW2B2YUR3N35","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BW2B2YUR3N35UUXH","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BW2B2YUR","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:43363f8a1f1082d86bff93626ed2f0695d9dee9e4ab05d11b306719d73252669","target":"graph","created_at":"2026-05-18T00:42:51Z","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":"The Materials Project crystal structure database has been searched for materials possessing layered motifs in their crystal structures using a topology-scaling algorithm. The algorithm identifies and measures the sizes of bonded atomic clusters in a structure's unit cell, and determines their scaling with cell size. The search yielded 826 stable layered materials, which are considered as candidates for the formation of two-dimensional monolayers via exfoliation. Density-functional theory calculates the exfoliation energy of each material and 681 monolayers are found to exhibit exfoliation ener","authors_text":"Joshua Paul, Michael Ashton, Richard G. Hennig, Susan B. Sinnott","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T22:33:50Z","title":"Topology-Scaling Identification of Layered Solids and Stable Exfoliated 2D Materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07673","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:bd84d1b72e9fe4ea4cc2a6e686c11e003e407ba7f5df59aa91968f03bbd69539","target":"record","created_at":"2026-05-18T00:42:51Z","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":"b1424abe6aa0d34b9151b4d58045c02f84cddde26e84b4a5e6d4ea029015170b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T22:33:50Z","title_canon_sha256":"4afa054e606e225a8b2f397c3f8b26e26609009ef71f6d1c959f44ff7c766aa0"},"schema_version":"1.0","source":{"id":"1610.07673","kind":"arxiv","version":2}},"canonical_sha256":"0db41d6291db77da52e73b8a05a8b04d8a8abe5b2eca2f5c72a682de99bb1cd7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0db41d6291db77da52e73b8a05a8b04d8a8abe5b2eca2f5c72a682de99bb1cd7","first_computed_at":"2026-05-18T00:42:51.517884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:51.517884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ud9lVmO2io2lFNQhPYbnmfdT/ymYSdkFJQ4v1mXMHcssMxfQuZVVrBHAeB3hkyOiURMWLCmC/7IVUDKOQ/1uCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:51.518581Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07673","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd84d1b72e9fe4ea4cc2a6e686c11e003e407ba7f5df59aa91968f03bbd69539","sha256:43363f8a1f1082d86bff93626ed2f0695d9dee9e4ab05d11b306719d73252669"],"state_sha256":"788ee82e5a7f491e86b3e35e7ba53292be1c1ba82e98d9a29398c69fe8a27576"}