{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:VIBBMHFZUVNMWCUH4W2JXBPSOL","short_pith_number":"pith:VIBBMHFZ","canonical_record":{"source":{"id":"1206.3625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-06-16T03:16:53Z","cross_cats_sorted":[],"title_canon_sha256":"7234e72f688831238e2e2228d7d52a9b8b460398d3ad215ad52dbd4002396801","abstract_canon_sha256":"1c671c68c1be4f495dfb72811b2030fcac5ff9dd930aa641d7f38d9105bf4a35"},"schema_version":"1.0"},"canonical_sha256":"aa02161cb9a55acb0a87e5b49b85f272d145ccf2bd7252c6fd594d32450436f0","source":{"kind":"arxiv","id":"1206.3625","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.3625","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1206.3625v1","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.3625","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"VIBBMHFZUVNM","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VIBBMHFZUVNMWCUH","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VIBBMHFZ","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:VIBBMHFZUVNMWCUH4W2JXBPSOL","target":"record","payload":{"canonical_record":{"source":{"id":"1206.3625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-06-16T03:16:53Z","cross_cats_sorted":[],"title_canon_sha256":"7234e72f688831238e2e2228d7d52a9b8b460398d3ad215ad52dbd4002396801","abstract_canon_sha256":"1c671c68c1be4f495dfb72811b2030fcac5ff9dd930aa641d7f38d9105bf4a35"},"schema_version":"1.0"},"canonical_sha256":"aa02161cb9a55acb0a87e5b49b85f272d145ccf2bd7252c6fd594d32450436f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:52.241207Z","signature_b64":"Dl689RMT32qqYK6Zge/yq12/0nYBXxfBEbNy1m217v5V8QzTjckE+RTqBVwburEAGpAg64k+gcJpKeQ2mzNzDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa02161cb9a55acb0a87e5b49b85f272d145ccf2bd7252c6fd594d32450436f0","last_reissued_at":"2026-05-18T01:56:52.240426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:52.240426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.3625","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":"2026-05-18T01:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zketVoMilvG9NZUHxQ80ehBYHolfKN8kfa4oQatvprmlx0fPYq5sLTZc/9Q7f6iai8a2PihL4Yb6A5jOdyDjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:29:15.344758Z"},"content_sha256":"39ee3f0ec87305084f28b540fb373a2c1f21ac8007d3fd900a24b65b47216755","schema_version":"1.0","event_id":"sha256:39ee3f0ec87305084f28b540fb373a2c1f21ac8007d3fd900a24b65b47216755"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:VIBBMHFZUVNMWCUH4W2JXBPSOL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Drift instability in the motion of a fluid droplet with a chemically reactive surface driven by Marangoni flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Hiroyuki Kitahata, Ken H. Nagai, Natsuhiko Yoshinaga, Yutaka Sumino","submitted_at":"2012-06-16T03:16:53Z","abstract_excerpt":"We theoretically derive the amplitude equations for a self-propelled droplet driven by Marangoni flow. As advective flow driven by surface tension gradient is enhanced, the stationary state becomes unstable and the droplet starts to move. The velocity of the droplet is determined from a cubic nonlinear term in the amplitude equations. The obtained critical point and the characteristic velocity are well supported by numerical simulations."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.3625","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":"2026-05-18T01:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yjNRVoGpFCnwhfJybHBrs9DzuscfmswhE4V+6lsvVqLD53LnjdnD28TMjfQiBby4xkFeq2MqLNtPTpNAdzTJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:29:15.345579Z"},"content_sha256":"6375783157b94b1dda0a24e7d716193396ca35dab168d4eb91ba43e1209f36fe","schema_version":"1.0","event_id":"sha256:6375783157b94b1dda0a24e7d716193396ca35dab168d4eb91ba43e1209f36fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/bundle.json","state_url":"https://pith.science/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/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":"2026-05-31T22:29:15Z","links":{"resolver":"https://pith.science/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL","bundle":"https://pith.science/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/bundle.json","state":"https://pith.science/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VIBBMHFZUVNMWCUH4W2JXBPSOL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VIBBMHFZUVNMWCUH4W2JXBPSOL","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":"1c671c68c1be4f495dfb72811b2030fcac5ff9dd930aa641d7f38d9105bf4a35","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-06-16T03:16:53Z","title_canon_sha256":"7234e72f688831238e2e2228d7d52a9b8b460398d3ad215ad52dbd4002396801"},"schema_version":"1.0","source":{"id":"1206.3625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.3625","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1206.3625v1","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.3625","created_at":"2026-05-18T01:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"VIBBMHFZUVNM","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VIBBMHFZUVNMWCUH","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VIBBMHFZ","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:6375783157b94b1dda0a24e7d716193396ca35dab168d4eb91ba43e1209f36fe","target":"graph","created_at":"2026-05-18T01:56:52Z","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 theoretically derive the amplitude equations for a self-propelled droplet driven by Marangoni flow. As advective flow driven by surface tension gradient is enhanced, the stationary state becomes unstable and the droplet starts to move. The velocity of the droplet is determined from a cubic nonlinear term in the amplitude equations. The obtained critical point and the characteristic velocity are well supported by numerical simulations.","authors_text":"Hiroyuki Kitahata, Ken H. Nagai, Natsuhiko Yoshinaga, Yutaka Sumino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-06-16T03:16:53Z","title":"Drift instability in the motion of a fluid droplet with a chemically reactive surface driven by Marangoni flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.3625","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":"sha256:39ee3f0ec87305084f28b540fb373a2c1f21ac8007d3fd900a24b65b47216755","target":"record","created_at":"2026-05-18T01:56:52Z","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":"1c671c68c1be4f495dfb72811b2030fcac5ff9dd930aa641d7f38d9105bf4a35","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-06-16T03:16:53Z","title_canon_sha256":"7234e72f688831238e2e2228d7d52a9b8b460398d3ad215ad52dbd4002396801"},"schema_version":"1.0","source":{"id":"1206.3625","kind":"arxiv","version":1}},"canonical_sha256":"aa02161cb9a55acb0a87e5b49b85f272d145ccf2bd7252c6fd594d32450436f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa02161cb9a55acb0a87e5b49b85f272d145ccf2bd7252c6fd594d32450436f0","first_computed_at":"2026-05-18T01:56:52.240426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:52.240426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dl689RMT32qqYK6Zge/yq12/0nYBXxfBEbNy1m217v5V8QzTjckE+RTqBVwburEAGpAg64k+gcJpKeQ2mzNzDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:52.241207Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.3625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:39ee3f0ec87305084f28b540fb373a2c1f21ac8007d3fd900a24b65b47216755","sha256:6375783157b94b1dda0a24e7d716193396ca35dab168d4eb91ba43e1209f36fe"],"state_sha256":"79a6f7145ee73b8803511a75cc6fa1bb5b38931d7f394daa1b84c10f1e3ff328"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tByW324op4pROW9rmtsxK9NJxACPZaKf0fi7ysdmz8RHbiGEnfUqJi/YZBMLHk4Q7oYvvqG1n98XkQ0hWFx4Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:29:15.349938Z","bundle_sha256":"ce8840fc84257d1f4d3170ae963c28ab3be9b3f531a58c6963ddac4458e1b64b"}}