{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:IHI6WP2P7B4F7AVAR7MXLP4HHI","short_pith_number":"pith:IHI6WP2P","canonical_record":{"source":{"id":"1202.6474","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-29T07:52:44Z","cross_cats_sorted":[],"title_canon_sha256":"368d0e4841ee06346d96a39e86acef5b9e3bca380f670803b5ebab3187c847bd","abstract_canon_sha256":"9aea2964a5ebdca67cfca0499bc0d5d6813e982c8a4f5d4a6e641df2fd8c38b7"},"schema_version":"1.0"},"canonical_sha256":"41d1eb3f4ff8785f82a08fd975bf873a14505ac551fc7ab61267d249e8983e9e","source":{"kind":"arxiv","id":"1202.6474","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.6474","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1202.6474v1","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.6474","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"IHI6WP2P7B4F","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IHI6WP2P7B4F7AVA","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IHI6WP2P","created_at":"2026-05-18T12:27:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:IHI6WP2P7B4F7AVAR7MXLP4HHI","target":"record","payload":{"canonical_record":{"source":{"id":"1202.6474","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-29T07:52:44Z","cross_cats_sorted":[],"title_canon_sha256":"368d0e4841ee06346d96a39e86acef5b9e3bca380f670803b5ebab3187c847bd","abstract_canon_sha256":"9aea2964a5ebdca67cfca0499bc0d5d6813e982c8a4f5d4a6e641df2fd8c38b7"},"schema_version":"1.0"},"canonical_sha256":"41d1eb3f4ff8785f82a08fd975bf873a14505ac551fc7ab61267d249e8983e9e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:18.382052Z","signature_b64":"rxAkfZwzD9RGtbuBXB8YMn0mzSztLoQ5AEBZG1kaB46ysUWEl1fGiBXeVXyZ17NiaAnOxnT1m2/SzfCgtmLCAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41d1eb3f4ff8785f82a08fd975bf873a14505ac551fc7ab61267d249e8983e9e","last_reissued_at":"2026-05-18T01:58:18.381523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:18.381523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.6474","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i+UrFo3I8+vFRLj0YAJsceJp4+OccrSVzO39kXIFMuqi/0PX3fQZ2X5V2ohvvICx/AOZfVctDVvlFQIX07a/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T18:27:45.973532Z"},"content_sha256":"1f3dd333d1638922625462c77c94c556ee2189709b1ebc85691b6b86dc821d91","schema_version":"1.0","event_id":"sha256:1f3dd333d1638922625462c77c94c556ee2189709b1ebc85691b6b86dc821d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:IHI6WP2P7B4F7AVAR7MXLP4HHI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Equilibrium concentration profiles and sedimentation kinetics of colloidal gels under gravitational stress","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Eleonora Secchi, Giovanni Brambilla (L2C), Luca Cipelletti (L2C), R. Piazza, Stefano Buzzaccaro","submitted_at":"2012-02-29T07:52:44Z","abstract_excerpt":"We study the sedimentation of colloidal gels by using a combination of light scattering, polarimetry and video imaging. The asymptotic concentration profiles $\\varphi(z,t\\rightarrow \\infty)$ exhibit remarkable scaling properties: profiles for gels prepared at different initial volume fractions and particle interactions can be superimposed onto a single master curve by using suitable reduced variables. We show theoretically that this behavior stems from a power law dependence of the compressive elastic modulus \\textit{vs} $\\varphi$, which we directly test experimentally. The sedimentation kinet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.6474","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LZEkgEg0gcv6AS+dp6KZj0q16QKwRa635pO7U8Jvreecp8cojk8knlScOBJEfGuWKvYPykesssIA45LZTb8EDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T18:27:45.973869Z"},"content_sha256":"0dfcba33d35b82ae6f7ab07242b88eacde1f310d379f4dbc07100ad8eb897261","schema_version":"1.0","event_id":"sha256:0dfcba33d35b82ae6f7ab07242b88eacde1f310d379f4dbc07100ad8eb897261"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/bundle.json","state_url":"https://pith.science/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/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":"2026-06-21T18:27:45Z","links":{"resolver":"https://pith.science/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI","bundle":"https://pith.science/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/bundle.json","state":"https://pith.science/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IHI6WP2P7B4F7AVAR7MXLP4HHI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:IHI6WP2P7B4F7AVAR7MXLP4HHI","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":"9aea2964a5ebdca67cfca0499bc0d5d6813e982c8a4f5d4a6e641df2fd8c38b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-29T07:52:44Z","title_canon_sha256":"368d0e4841ee06346d96a39e86acef5b9e3bca380f670803b5ebab3187c847bd"},"schema_version":"1.0","source":{"id":"1202.6474","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.6474","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1202.6474v1","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.6474","created_at":"2026-05-18T01:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"IHI6WP2P7B4F","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IHI6WP2P7B4F7AVA","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IHI6WP2P","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:0dfcba33d35b82ae6f7ab07242b88eacde1f310d379f4dbc07100ad8eb897261","target":"graph","created_at":"2026-05-18T01:58:18Z","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 study the sedimentation of colloidal gels by using a combination of light scattering, polarimetry and video imaging. The asymptotic concentration profiles $\\varphi(z,t\\rightarrow \\infty)$ exhibit remarkable scaling properties: profiles for gels prepared at different initial volume fractions and particle interactions can be superimposed onto a single master curve by using suitable reduced variables. We show theoretically that this behavior stems from a power law dependence of the compressive elastic modulus \\textit{vs} $\\varphi$, which we directly test experimentally. The sedimentation kinet","authors_text":"Eleonora Secchi, Giovanni Brambilla (L2C), Luca Cipelletti (L2C), R. Piazza, Stefano Buzzaccaro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-29T07:52:44Z","title":"Equilibrium concentration profiles and sedimentation kinetics of colloidal gels under gravitational stress"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.6474","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":"sha256:1f3dd333d1638922625462c77c94c556ee2189709b1ebc85691b6b86dc821d91","target":"record","created_at":"2026-05-18T01:58:18Z","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":"9aea2964a5ebdca67cfca0499bc0d5d6813e982c8a4f5d4a6e641df2fd8c38b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-29T07:52:44Z","title_canon_sha256":"368d0e4841ee06346d96a39e86acef5b9e3bca380f670803b5ebab3187c847bd"},"schema_version":"1.0","source":{"id":"1202.6474","kind":"arxiv","version":1}},"canonical_sha256":"41d1eb3f4ff8785f82a08fd975bf873a14505ac551fc7ab61267d249e8983e9e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41d1eb3f4ff8785f82a08fd975bf873a14505ac551fc7ab61267d249e8983e9e","first_computed_at":"2026-05-18T01:58:18.381523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:18.381523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rxAkfZwzD9RGtbuBXB8YMn0mzSztLoQ5AEBZG1kaB46ysUWEl1fGiBXeVXyZ17NiaAnOxnT1m2/SzfCgtmLCAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:18.382052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.6474","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f3dd333d1638922625462c77c94c556ee2189709b1ebc85691b6b86dc821d91","sha256:0dfcba33d35b82ae6f7ab07242b88eacde1f310d379f4dbc07100ad8eb897261"],"state_sha256":"915d2cd9870a902d4bb32f2055e11113e3573165fecbd1e58215b8486a0ee2ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HXgOQqSX+IcdbXV5XaWRFnMLVZS0p4DHZbrR9n/QyFLsfZME7ko8YsSvogBac0OQedKLzuLSi3SsVBkLFs+NDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T18:27:45.975987Z","bundle_sha256":"f7cde5a3f59fb7523394b7454a5f9275086f78b178c4fb3627740657588b9895"}}