{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:E3OPGL6I4MYK7IARDLNFMUBYNY","short_pith_number":"pith:E3OPGL6I","schema_version":"1.0","canonical_sha256":"26dcf32fc8e330afa0111ada5650386e1d07a91cda2c4f5949367332ae87ac0b","source":{"kind":"arxiv","id":"1001.3811","version":1},"attestation_state":"computed","paper":{"title":"Jamming and growth of dynamical heterogeneities versus depth for granular heap flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"A. R. Abate, D. J. Durian, H. Katsuragi","submitted_at":"2010-01-21T18:45:14Z","abstract_excerpt":"We report on grain dynamics versus depth for steady-state gravity-driven flow of grains along a heap formed between two parallel sidewalls. Near the surface the flow is steady and fast, while far below there is no flow whatsoever; therefore, a jamming transition occurs where depth is an effective control parameter for setting the distance from the transition. As seen previously, the time-averaged velocity profile along the sidewall exhibits a nearly exponential decay vs depth. Using speckle-visiblility spectroscopy (SVS), we find that velocity fluctuations grow relative to the average on appro"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1001.3811","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-01-21T18:45:14Z","cross_cats_sorted":[],"title_canon_sha256":"d40790f0b4f6f9fd405121613f20c35c54e1ba2562cd2c107d61781a4abfce2a","abstract_canon_sha256":"9165ade3f12bf2a397c40a67abf80d3f6c769107ab38124d5139269d1b51e745"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:37:22.166790Z","signature_b64":"NDOXwD6upKFxPb0JKn1MjhnwJs1XdoYePgfEy2Qzm8HEbDTQpF6x9gRYRxmFRFNFRiVMNEZaOX2CJeLMpc0/Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26dcf32fc8e330afa0111ada5650386e1d07a91cda2c4f5949367332ae87ac0b","last_reissued_at":"2026-05-18T04:37:22.166379Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:37:22.166379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Jamming and growth of dynamical heterogeneities versus depth for granular heap flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"A. R. Abate, D. J. Durian, H. Katsuragi","submitted_at":"2010-01-21T18:45:14Z","abstract_excerpt":"We report on grain dynamics versus depth for steady-state gravity-driven flow of grains along a heap formed between two parallel sidewalls. Near the surface the flow is steady and fast, while far below there is no flow whatsoever; therefore, a jamming transition occurs where depth is an effective control parameter for setting the distance from the transition. As seen previously, the time-averaged velocity profile along the sidewall exhibits a nearly exponential decay vs depth. Using speckle-visiblility spectroscopy (SVS), we find that velocity fluctuations grow relative to the average on appro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3811","kind":"arxiv","version":1},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1001.3811","created_at":"2026-05-18T04:37:22.166435+00:00"},{"alias_kind":"arxiv_version","alias_value":"1001.3811v1","created_at":"2026-05-18T04:37:22.166435+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3811","created_at":"2026-05-18T04:37:22.166435+00:00"},{"alias_kind":"pith_short_12","alias_value":"E3OPGL6I4MYK","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_16","alias_value":"E3OPGL6I4MYK7IAR","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_8","alias_value":"E3OPGL6I","created_at":"2026-05-18T12:26:06.534383+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY","json":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY.json","graph_json":"https://pith.science/api/pith-number/E3OPGL6I4MYK7IARDLNFMUBYNY/graph.json","events_json":"https://pith.science/api/pith-number/E3OPGL6I4MYK7IARDLNFMUBYNY/events.json","paper":"https://pith.science/paper/E3OPGL6I"},"agent_actions":{"view_html":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY","download_json":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY.json","view_paper":"https://pith.science/paper/E3OPGL6I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1001.3811&json=true","fetch_graph":"https://pith.science/api/pith-number/E3OPGL6I4MYK7IARDLNFMUBYNY/graph.json","fetch_events":"https://pith.science/api/pith-number/E3OPGL6I4MYK7IARDLNFMUBYNY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY/action/storage_attestation","attest_author":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY/action/author_attestation","sign_citation":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY/action/citation_signature","submit_replication":"https://pith.science/pith/E3OPGL6I4MYK7IARDLNFMUBYNY/action/replication_record"}},"created_at":"2026-05-18T04:37:22.166435+00:00","updated_at":"2026-05-18T04:37:22.166435+00:00"}