{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:6IP4E4U7CMS7KMTY2KF4XB73FD","short_pith_number":"pith:6IP4E4U7","canonical_record":{"source":{"id":"0810.3191","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-10-17T16:32:15Z","cross_cats_sorted":[],"title_canon_sha256":"1140bf2596ffe9f3d7057fa00d08e62b40a111ce8b8ffb0dae20da928662e7a5","abstract_canon_sha256":"71f702068018416e8ce5605250b2f4cd535a0310813c4093920d093c0c92d069"},"schema_version":"1.0"},"canonical_sha256":"f21fc2729f1325f53278d28bcb87fb28f63d28e55bf3b459cc7657f545927c36","source":{"kind":"arxiv","id":"0810.3191","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.3191","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"arxiv_version","alias_value":"0810.3191v3","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.3191","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"pith_short_12","alias_value":"6IP4E4U7CMS7","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"6IP4E4U7CMS7KMTY","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"6IP4E4U7","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:6IP4E4U7CMS7KMTY2KF4XB73FD","target":"record","payload":{"canonical_record":{"source":{"id":"0810.3191","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-10-17T16:32:15Z","cross_cats_sorted":[],"title_canon_sha256":"1140bf2596ffe9f3d7057fa00d08e62b40a111ce8b8ffb0dae20da928662e7a5","abstract_canon_sha256":"71f702068018416e8ce5605250b2f4cd535a0310813c4093920d093c0c92d069"},"schema_version":"1.0"},"canonical_sha256":"f21fc2729f1325f53278d28bcb87fb28f63d28e55bf3b459cc7657f545927c36","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:22.352760Z","signature_b64":"nfanIpo8WLUlczrZ9n8p5hBAg3xHjVbaq3GqnNv3JHFQb5+Yllwj4mxLDbbQNkOGne6ubPhgwoUha8uBgh1CCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f21fc2729f1325f53278d28bcb87fb28f63d28e55bf3b459cc7657f545927c36","last_reissued_at":"2026-05-18T01:29:22.351969Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:22.351969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.3191","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:29:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tw1T4cA9F4qkLhhwTg1+oQ3bRf33pwpB45+vLtIGEb8a/WOQswU5VOoOXssy7UVaupLqgC13QjWMW4EO9GUUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:16:49.593747Z"},"content_sha256":"fb134c971bf9c2d26c82c5c6f7cce281637cb2b9c747a6b7bdd8c57f3e15a077","schema_version":"1.0","event_id":"sha256:fb134c971bf9c2d26c82c5c6f7cce281637cb2b9c747a6b7bdd8c57f3e15a077"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:6IP4E4U7CMS7KMTY2KF4XB73FD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fluidization of granular media wetted by liquid $^4$He","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"K. Huang, M. Schr\\\"oter, M. Sohaili, S. Herminghaus","submitted_at":"2008-10-17T16:32:15Z","abstract_excerpt":"We explore experimentally the fluidization of vertically agitated PMMA spheres wetted by liquid $^4$He. By controlling the temperature around the $\\lambda$ point we change the properties of the wetting liquid from a normal fluid (helium I) to a superfluid (helium II). For wetting by helium I, the critical acceleration for fluidization ($\\Gamma_c$) shows a steep increase close to the saturation of the vapor pressure in the sample cell. For helium II wetting, $\\Gamma_c$ starts to increase at about 75% saturation, indicating that capillary bridges are enhanced by the superflow of unsaturated heli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.3191","kind":"arxiv","version":3},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:29:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pfQqJTPLcyZFKUNx5LJAbtii6lRW7JC/HH+p/lvQ4ayNx2KJ4XVMkpIFNkNsrBZ6G5goGsAqnJc9+MAlCr+3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:16:49.594424Z"},"content_sha256":"1188333f1244fc010b1b9de560da618457849216f2c34242c771c2cd67e57a38","schema_version":"1.0","event_id":"sha256:1188333f1244fc010b1b9de560da618457849216f2c34242c771c2cd67e57a38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/bundle.json","state_url":"https://pith.science/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T21:16:49Z","links":{"resolver":"https://pith.science/pith/6IP4E4U7CMS7KMTY2KF4XB73FD","bundle":"https://pith.science/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/bundle.json","state":"https://pith.science/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6IP4E4U7CMS7KMTY2KF4XB73FD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:6IP4E4U7CMS7KMTY2KF4XB73FD","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":"71f702068018416e8ce5605250b2f4cd535a0310813c4093920d093c0c92d069","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-10-17T16:32:15Z","title_canon_sha256":"1140bf2596ffe9f3d7057fa00d08e62b40a111ce8b8ffb0dae20da928662e7a5"},"schema_version":"1.0","source":{"id":"0810.3191","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.3191","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"arxiv_version","alias_value":"0810.3191v3","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.3191","created_at":"2026-05-18T01:29:22Z"},{"alias_kind":"pith_short_12","alias_value":"6IP4E4U7CMS7","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"6IP4E4U7CMS7KMTY","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"6IP4E4U7","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:1188333f1244fc010b1b9de560da618457849216f2c34242c771c2cd67e57a38","target":"graph","created_at":"2026-05-18T01:29:22Z","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 experimentally the fluidization of vertically agitated PMMA spheres wetted by liquid $^4$He. By controlling the temperature around the $\\lambda$ point we change the properties of the wetting liquid from a normal fluid (helium I) to a superfluid (helium II). For wetting by helium I, the critical acceleration for fluidization ($\\Gamma_c$) shows a steep increase close to the saturation of the vapor pressure in the sample cell. For helium II wetting, $\\Gamma_c$ starts to increase at about 75% saturation, indicating that capillary bridges are enhanced by the superflow of unsaturated heli","authors_text":"K. Huang, M. Schr\\\"oter, M. Sohaili, S. Herminghaus","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-10-17T16:32:15Z","title":"Fluidization of granular media wetted by liquid $^4$He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.3191","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:fb134c971bf9c2d26c82c5c6f7cce281637cb2b9c747a6b7bdd8c57f3e15a077","target":"record","created_at":"2026-05-18T01:29:22Z","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":"71f702068018416e8ce5605250b2f4cd535a0310813c4093920d093c0c92d069","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-10-17T16:32:15Z","title_canon_sha256":"1140bf2596ffe9f3d7057fa00d08e62b40a111ce8b8ffb0dae20da928662e7a5"},"schema_version":"1.0","source":{"id":"0810.3191","kind":"arxiv","version":3}},"canonical_sha256":"f21fc2729f1325f53278d28bcb87fb28f63d28e55bf3b459cc7657f545927c36","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f21fc2729f1325f53278d28bcb87fb28f63d28e55bf3b459cc7657f545927c36","first_computed_at":"2026-05-18T01:29:22.351969Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:22.351969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nfanIpo8WLUlczrZ9n8p5hBAg3xHjVbaq3GqnNv3JHFQb5+Yllwj4mxLDbbQNkOGne6ubPhgwoUha8uBgh1CCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:22.352760Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.3191","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb134c971bf9c2d26c82c5c6f7cce281637cb2b9c747a6b7bdd8c57f3e15a077","sha256:1188333f1244fc010b1b9de560da618457849216f2c34242c771c2cd67e57a38"],"state_sha256":"81fd3f86fafd09eb085d37c25b6d4ea1e4333dbbba083b89832679b29a500a83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"StxseDwhwZSEyTgZw+QookGyBW6gouU2fy3tfdqafAse2Aa/SNOEyqwRhnNsomWHWTHZs195k8NN+MyeXojQBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:16:49.598361Z","bundle_sha256":"052411398b6bb715cfa7186f49938e7039286eb99c85101d09674c2aba5da0bb"}}