{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3SK7M6W7JOSI6K57C654KD7VHF","short_pith_number":"pith:3SK7M6W7","canonical_record":{"source":{"id":"1805.08854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-05-22T20:32:45Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"27aacf53bde645205176d289e105a4acc1021c0ffd3efc5b4aff1b0843b6eec6","abstract_canon_sha256":"7ecb84ca31b6ec858f156e5d96efd26f5ea2530f7d73aa32c760d2fdb6a82f10"},"schema_version":"1.0"},"canonical_sha256":"dc95f67adf4ba48f2bbf17bbc50ff53973b9799d0bbfc8810965a9b6897532fe","source":{"kind":"arxiv","id":"1805.08854","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.08854","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"arxiv_version","alias_value":"1805.08854v1","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08854","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"pith_short_12","alias_value":"3SK7M6W7JOSI","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3SK7M6W7JOSI6K57","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3SK7M6W7","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3SK7M6W7JOSI6K57C654KD7VHF","target":"record","payload":{"canonical_record":{"source":{"id":"1805.08854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-05-22T20:32:45Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"27aacf53bde645205176d289e105a4acc1021c0ffd3efc5b4aff1b0843b6eec6","abstract_canon_sha256":"7ecb84ca31b6ec858f156e5d96efd26f5ea2530f7d73aa32c760d2fdb6a82f10"},"schema_version":"1.0"},"canonical_sha256":"dc95f67adf4ba48f2bbf17bbc50ff53973b9799d0bbfc8810965a9b6897532fe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:09.277244Z","signature_b64":"srx1qyNwp8QKJ8r7pS4tifR4UX3qOL1nb3lfyhh5gqRmtRccFVdVwTzYE4HZ9rcERG/IP20T7XebMEzhqMsMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc95f67adf4ba48f2bbf17bbc50ff53973b9799d0bbfc8810965a9b6897532fe","last_reissued_at":"2026-05-18T00:15:09.276776Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:09.276776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.08854","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":"2026-05-18T00:15:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0uBo9TV8TqY4tQobjUqwoD74AhlKSmFaYHezdlbpKeYqUiOozsUfiaZqB+vMGb+lzec8g3y65JP8n6bgH8PZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:28:33.742799Z"},"content_sha256":"805c60156de3cd3fd1a3f9790f02ba83e1573a89ff6ba8a4335c59f5b44e9244","schema_version":"1.0","event_id":"sha256:805c60156de3cd3fd1a3f9790f02ba83e1573a89ff6ba8a4335c59f5b44e9244"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3SK7M6W7JOSI6K57C654KD7VHF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Advection and diffusion in a chemically induced compressible flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.flu-dyn","authors_text":"C\\'ecile Cottin-Bizonne, Christophe Ybert, Florence Raynal, Mickael Bourgoin, Romain Volk","submitted_at":"2018-05-22T20:32:45Z","abstract_excerpt":"We study analytically the joint dispersion of Gaussian patches of salt and colloids in linear flows, and how salt gradients accelerate or delay colloid spreading by diffusiophoretic effects. Because these flows have constant gradients in space, the problem can be solved almost entirely for any set of parameters, leading to predictions of how the mixing time and the Batchelor scale are modified by diffusiophoresis. We observe that the evolution of global concentrations, defined as the inverse of the patches areas, are very similar to those obtained experimentally in chaotic advection. They are "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08854","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":"2026-05-18T00:15:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oGEEIPOybC0gbepolrc65Ktxfu7vSh6uAvuBhsRqPZwBoieb7AO7ZEGPMojdW4ccJmst5NinZ38+BX2iy9XaBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:28:33.743279Z"},"content_sha256":"6181daaccc2b9527368e4cc17eb190e673bc939229e5f0de6283c1c3f12afc3f","schema_version":"1.0","event_id":"sha256:6181daaccc2b9527368e4cc17eb190e673bc939229e5f0de6283c1c3f12afc3f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3SK7M6W7JOSI6K57C654KD7VHF/bundle.json","state_url":"https://pith.science/pith/3SK7M6W7JOSI6K57C654KD7VHF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3SK7M6W7JOSI6K57C654KD7VHF/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":"2026-06-01T21:28:33Z","links":{"resolver":"https://pith.science/pith/3SK7M6W7JOSI6K57C654KD7VHF","bundle":"https://pith.science/pith/3SK7M6W7JOSI6K57C654KD7VHF/bundle.json","state":"https://pith.science/pith/3SK7M6W7JOSI6K57C654KD7VHF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3SK7M6W7JOSI6K57C654KD7VHF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3SK7M6W7JOSI6K57C654KD7VHF","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":"7ecb84ca31b6ec858f156e5d96efd26f5ea2530f7d73aa32c760d2fdb6a82f10","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-05-22T20:32:45Z","title_canon_sha256":"27aacf53bde645205176d289e105a4acc1021c0ffd3efc5b4aff1b0843b6eec6"},"schema_version":"1.0","source":{"id":"1805.08854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.08854","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"arxiv_version","alias_value":"1805.08854v1","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08854","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"pith_short_12","alias_value":"3SK7M6W7JOSI","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3SK7M6W7JOSI6K57","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3SK7M6W7","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:6181daaccc2b9527368e4cc17eb190e673bc939229e5f0de6283c1c3f12afc3f","target":"graph","created_at":"2026-05-18T00:15:09Z","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 analytically the joint dispersion of Gaussian patches of salt and colloids in linear flows, and how salt gradients accelerate or delay colloid spreading by diffusiophoretic effects. Because these flows have constant gradients in space, the problem can be solved almost entirely for any set of parameters, leading to predictions of how the mixing time and the Batchelor scale are modified by diffusiophoresis. We observe that the evolution of global concentrations, defined as the inverse of the patches areas, are very similar to those obtained experimentally in chaotic advection. They are ","authors_text":"C\\'ecile Cottin-Bizonne, Christophe Ybert, Florence Raynal, Mickael Bourgoin, Romain Volk","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-05-22T20:32:45Z","title":"Advection and diffusion in a chemically induced compressible flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08854","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":"sha256:805c60156de3cd3fd1a3f9790f02ba83e1573a89ff6ba8a4335c59f5b44e9244","target":"record","created_at":"2026-05-18T00:15:09Z","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":"7ecb84ca31b6ec858f156e5d96efd26f5ea2530f7d73aa32c760d2fdb6a82f10","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-05-22T20:32:45Z","title_canon_sha256":"27aacf53bde645205176d289e105a4acc1021c0ffd3efc5b4aff1b0843b6eec6"},"schema_version":"1.0","source":{"id":"1805.08854","kind":"arxiv","version":1}},"canonical_sha256":"dc95f67adf4ba48f2bbf17bbc50ff53973b9799d0bbfc8810965a9b6897532fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc95f67adf4ba48f2bbf17bbc50ff53973b9799d0bbfc8810965a9b6897532fe","first_computed_at":"2026-05-18T00:15:09.276776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:09.276776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"srx1qyNwp8QKJ8r7pS4tifR4UX3qOL1nb3lfyhh5gqRmtRccFVdVwTzYE4HZ9rcERG/IP20T7XebMEzhqMsMBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:09.277244Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.08854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:805c60156de3cd3fd1a3f9790f02ba83e1573a89ff6ba8a4335c59f5b44e9244","sha256:6181daaccc2b9527368e4cc17eb190e673bc939229e5f0de6283c1c3f12afc3f"],"state_sha256":"da33d75df19fcb70988a0b8022bdc3b9e343a4022685d718fd8c78f320c71345"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KC+JsMekBBFAvhek1ArQ09PkscIbpdNPykqYPX5bNizHb+7MGhGrToynFFOGDfSia+pJkpvRBtbcXqJAx479DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:28:33.746732Z","bundle_sha256":"51428508603bf3c80a034dd7ea024faf7dc8f021970202146287baa118a8b500"}}