{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OYA36WJ63XVEQW5GBPFXNB5A4P","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":"e546bda37fea684e1d90f5a2b2ff906e492269719a8b29aa7f6aebdf1787a3f5","cross_cats_sorted":["nlin.AO","nlin.PS","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-05-10T17:59:28Z","title_canon_sha256":"7302e735f4c4f334d7fa859d9bff5e00c0d2bd7e8c3b4ce0270640002b22e44c"},"schema_version":"1.0","source":{"id":"1605.03131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.03131","created_at":"2026-05-18T01:03:19Z"},{"alias_kind":"arxiv_version","alias_value":"1605.03131v1","created_at":"2026-05-18T01:03:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.03131","created_at":"2026-05-18T01:03:19Z"},{"alias_kind":"pith_short_12","alias_value":"OYA36WJ63XVE","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OYA36WJ63XVEQW5G","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OYA36WJ6","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:66f638e40805c118eb1591810b59da12e39f7545085af1edac9fb505c0aa6a14","target":"graph","created_at":"2026-05-18T01:03:19Z","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":"Developing quantitative methods for characterizing structural properties of force chains in densely packed granular media is an important step toward understanding or predicting large-scale physical properties of a packing. A promising framework in which to develop such methods is network science, which can be used to translate particle locations and force contacts to a graph in which particles are represented by nodes and forces between particles are represented by weighted edges. Applying network-based community-detection techniques to extract force chains opens the door to developing statis","authors_text":"Chad Giusti, Danielle S. Bassett, Eli T. Owens, Karen E. Daniels, Lia Papadopoulos","cross_cats":["nlin.AO","nlin.PS","physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-05-10T17:59:28Z","title":"Topological and geometric measurements of force chain structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.03131","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:a69c7cc3652bd82335dc63fe71c68f3491083c3f7bda7581b9962c8530ec5875","target":"record","created_at":"2026-05-18T01:03:19Z","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":"e546bda37fea684e1d90f5a2b2ff906e492269719a8b29aa7f6aebdf1787a3f5","cross_cats_sorted":["nlin.AO","nlin.PS","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-05-10T17:59:28Z","title_canon_sha256":"7302e735f4c4f334d7fa859d9bff5e00c0d2bd7e8c3b4ce0270640002b22e44c"},"schema_version":"1.0","source":{"id":"1605.03131","kind":"arxiv","version":1}},"canonical_sha256":"7601bf593eddea485ba60bcb7687a0e3d185e8bf7abacaaac1727578249d9379","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7601bf593eddea485ba60bcb7687a0e3d185e8bf7abacaaac1727578249d9379","first_computed_at":"2026-05-18T01:03:19.043997Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:19.043997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tntsqfc/3Z7/gDZxOhzETYnRX3bxOXtrQKR6SrMwNJ3yTVrtr8KXiGZ2wxLs7waOFXdqVJcGiyVor8wgOY2HDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:19.044481Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.03131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a69c7cc3652bd82335dc63fe71c68f3491083c3f7bda7581b9962c8530ec5875","sha256:66f638e40805c118eb1591810b59da12e39f7545085af1edac9fb505c0aa6a14"],"state_sha256":"81d3b301f3aa16c9db2b2c7a0596201916234c220d60974606b77ff8c2055feb"}