{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:UOLWAE6HXKOO6YRDL5LWUIDNWD","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":"8d60f249d1b0109e2666c31856037be1d8200030e355ce04610fc5e409f04a54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-06-12T01:28:47Z","title_canon_sha256":"619f1015afd726a62b57532c782080b88af85cfca71b333e6068477800ddccdc"},"schema_version":"1.0","source":{"id":"1306.2687","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2687","created_at":"2026-05-18T01:49:23Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2687v3","created_at":"2026-05-18T01:49:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2687","created_at":"2026-05-18T01:49:23Z"},{"alias_kind":"pith_short_12","alias_value":"UOLWAE6HXKOO","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UOLWAE6HXKOO6YRD","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UOLWAE6H","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:854295c76965c3901c96e0c68f5239019262033a26b1f416599706e6023ccf9d","target":"graph","created_at":"2026-05-18T01:49:23Z","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":"We explore the initial moments of impact between two dense granular clusters in a two-dimensional geometry. The particles are composed of solid CO$_{2}$ and are levitated on a hot surface. Upon collision, the propagation of a dynamic \"jamming front\" produces a distinct regime for energy dissipation in a granular gas in which the translational kinetic energy decreases by over 90%. Experiments and associated simulations show that the initial loss of kinetic energy obeys a power law in time, $\\Delta E=-Kt^{3/2}$, a form that can be predicted from kinetic arguments.","authors_text":"Justin C. Burton, Peter Y. Lu, Sidney R. Nagel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-06-12T01:28:47Z","title":"Energy Loss at Propagating Jamming Fronts in Granular Gas Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2687","kind":"arxiv","version":3},"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":"sha256:0438f16822ee63d759cc047967afc1c9557ecea75d78998c56b9756ed961f6e0","target":"record","created_at":"2026-05-18T01:49:23Z","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":"8d60f249d1b0109e2666c31856037be1d8200030e355ce04610fc5e409f04a54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-06-12T01:28:47Z","title_canon_sha256":"619f1015afd726a62b57532c782080b88af85cfca71b333e6068477800ddccdc"},"schema_version":"1.0","source":{"id":"1306.2687","kind":"arxiv","version":3}},"canonical_sha256":"a3976013c7ba9cef62235f576a206db0eb7cadefdf77d0af278d92f1237db72f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3976013c7ba9cef62235f576a206db0eb7cadefdf77d0af278d92f1237db72f","first_computed_at":"2026-05-18T01:49:23.401542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:23.401542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tvljf7FIA8FA9C7BNOWDgLrSJt5Lemx2wqhDnR7IoOpNaEnTaCYCVFs1zlsw05a+eUb9x89xo14hDGptLh88Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:23.402164Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.2687","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0438f16822ee63d759cc047967afc1c9557ecea75d78998c56b9756ed961f6e0","sha256:854295c76965c3901c96e0c68f5239019262033a26b1f416599706e6023ccf9d"],"state_sha256":"cda0884274c9f4fabe859c0027a60a8b79dd4f2f3316278e641b27bbbf6d5183"}