{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QTJPQ4QN3YNFHWCZNVS7U222SN","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":"14bdd52f1711766b170200c43b1ffcea95c45985d388c2f39e2b32d0c6a4a85c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2021-02-01T16:41:50Z","title_canon_sha256":"7624076170fc974136598ce232d406be739514d129123fa9b330b1c3031883b7"},"schema_version":"1.0","source":{"id":"2102.00958","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.00958","created_at":"2026-07-05T02:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"2102.00958v1","created_at":"2026-07-05T02:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.00958","created_at":"2026-07-05T02:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"QTJPQ4QN3YNF","created_at":"2026-07-05T02:22:58Z"},{"alias_kind":"pith_short_16","alias_value":"QTJPQ4QN3YNFHWCZ","created_at":"2026-07-05T02:22:58Z"},{"alias_kind":"pith_short_8","alias_value":"QTJPQ4QN","created_at":"2026-07-05T02:22:58Z"}],"graph_snapshots":[{"event_id":"sha256:8a490eae9bdb542aa04f75dcc12e73f7979195ca3ba4cea4f54664f0a02dcf04","target":"graph","created_at":"2026-07-05T02:22:58Z","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/2102.00958/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the outflow dynamics and clogging phenomena of mixtures of soft, elastic low-friction spherical grains and hard frictional spheres of similar size in a quasi-two-dimensional (2D) silo with narrow orifice at the bottom. Previous work has demonstrated the crucial influence of elasticity and friction on silo discharge. We show that the addition of small amounts, even as low as 5\\%, of hard grains to an ensemble of soft, low-friction grains already has significant consequences. The mixtures allow a direct comparison of the probabilities of the different types of particles to clog the orif","authors_text":"Bo Fan, Jing Wang, Kirsten Harth, Maja Illig, Ralf Stannarius, Ra\\'ul Cruz Hidalgo, Tam\\'as B\\\"orzs\\\"onyi, Tivadar Pong\\'o, Torsten Trittel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2021-02-01T16:41:50Z","title":"Silo discharge of mixtures of soft and rigid grains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.00958","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:d2197e6993813b14609a553dc7e662cd265c56fd76dd24e8163ed65ab145d829","target":"record","created_at":"2026-07-05T02:22:58Z","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":"14bdd52f1711766b170200c43b1ffcea95c45985d388c2f39e2b32d0c6a4a85c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2021-02-01T16:41:50Z","title_canon_sha256":"7624076170fc974136598ce232d406be739514d129123fa9b330b1c3031883b7"},"schema_version":"1.0","source":{"id":"2102.00958","kind":"arxiv","version":1}},"canonical_sha256":"84d2f8720dde1a53d8596d65fa6b5a9365f994372b9a4f0785fbef516e701be4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84d2f8720dde1a53d8596d65fa6b5a9365f994372b9a4f0785fbef516e701be4","first_computed_at":"2026-07-05T02:22:58.030875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:22:58.030875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5RpWaMutuPY5HOE8gRwb5/QDNc540OFQd+aVNn1ko8Ykv7A4VY/z5sAWnMb92IPp88DWlHv2ZekexT2Xpsp0CA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:22:58.031298Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.00958","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2197e6993813b14609a553dc7e662cd265c56fd76dd24e8163ed65ab145d829","sha256:8a490eae9bdb542aa04f75dcc12e73f7979195ca3ba4cea4f54664f0a02dcf04"],"state_sha256":"7121627212a97a11e7b45aa771ee0b626622dccc8d482b3409176b8546877435"}