{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IIQEHGFFRLF6RJGEK3V7QFGXPQ","short_pith_number":"pith:IIQEHGFF","canonical_record":{"source":{"id":"1507.07741","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-07-28T12:36:34Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"5fe09c79f7252b57bdaba386bb872c1c9c89e7715ad553a57cbdd12f52805adf","abstract_canon_sha256":"d8446e2e2b1a637d1ee90fb669c0edbac7742464ab303457d5a47910bd52a9ff"},"schema_version":"1.0"},"canonical_sha256":"42204398a58acbe8a4c456ebf814d77c25e7fceb1249de1932a0aa361302bc59","source":{"kind":"arxiv","id":"1507.07741","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07741","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07741v1","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07741","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"pith_short_12","alias_value":"IIQEHGFFRLF6","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IIQEHGFFRLF6RJGE","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IIQEHGFF","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IIQEHGFFRLF6RJGEK3V7QFGXPQ","target":"record","payload":{"canonical_record":{"source":{"id":"1507.07741","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-07-28T12:36:34Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"5fe09c79f7252b57bdaba386bb872c1c9c89e7715ad553a57cbdd12f52805adf","abstract_canon_sha256":"d8446e2e2b1a637d1ee90fb669c0edbac7742464ab303457d5a47910bd52a9ff"},"schema_version":"1.0"},"canonical_sha256":"42204398a58acbe8a4c456ebf814d77c25e7fceb1249de1932a0aa361302bc59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:49.139395Z","signature_b64":"jegy91unTNGM3rY5ZvhNIP+ucw5ElyHH4W724nsy+SOCwdu+STig4Ywf1FFgTwa31os0iRdkfMT//wUjf8IhDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42204398a58acbe8a4c456ebf814d77c25e7fceb1249de1932a0aa361302bc59","last_reissued_at":"2026-05-18T00:35:49.138611Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:49.138611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.07741","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":"2026-05-18T00:35:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9cq0QtBBy1TY+qA3IOmtg+R3JVmVUTJTjeC2eq7N82+gJ50Y8t9Cg6AlCFrsMUwbt0lLqct2oQZd6yV+XVhRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:18:46.764077Z"},"content_sha256":"09c59233cd62fff08ddc2b40ee66c6c6a8dd39e2b610a48d500c43d1f6f59ecd","schema_version":"1.0","event_id":"sha256:09c59233cd62fff08ddc2b40ee66c6c6a8dd39e2b610a48d500c43d1f6f59ecd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IIQEHGFFRLF6RJGEK3V7QFGXPQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oscillation of a Rotating Levitated Droplet: Analysis with a Mechanical Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"nlin.PS","authors_text":"Akiko Kaneko, Hiroyuki Kitahata, Katsuhiro Nishinari, Koji Hasegawa, Rui Tanaka, Satoshi Matsumoto, Tadashi Watanabe, Tetsuya Kanagawa, Yuki Koyano, Yutaka Abe","submitted_at":"2015-07-28T12:36:34Z","abstract_excerpt":"A droplet of millimeter-to-centimeter scale can exhibit electrostatic levitation, and such levitated droplets can be used for the measurement of the surface tension of the liquids by observing the characteristic frequency of oscillatory deformation. In the present study, a simple mechanical model is proposed by considering a single mode of oscillation in the ellipsoidal deformation of a levitated rotating droplet. By measuring the oscillation frequency with respect to the rotational speed and oscillation amplitude, it is expected that the accuracy of the surface tension measurement could be im"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07741","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":"2026-05-18T00:35:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FrFwLao6vGwK9Po/2fvg4CdWW4oOHT9cBLbgUk6sxfr/ZV1ysyUlROk9TahWEsqeGhqEPmGtf5RhNKzhDwxaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:18:46.764523Z"},"content_sha256":"0234ed5d6189045149f54b17f9382b3fa77967bd137bf14d4f313b7fa375c963","schema_version":"1.0","event_id":"sha256:0234ed5d6189045149f54b17f9382b3fa77967bd137bf14d4f313b7fa375c963"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/bundle.json","state_url":"https://pith.science/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/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":"2026-05-27T17:18:46Z","links":{"resolver":"https://pith.science/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ","bundle":"https://pith.science/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/bundle.json","state":"https://pith.science/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IIQEHGFFRLF6RJGEK3V7QFGXPQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IIQEHGFFRLF6RJGEK3V7QFGXPQ","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":"d8446e2e2b1a637d1ee90fb669c0edbac7742464ab303457d5a47910bd52a9ff","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-07-28T12:36:34Z","title_canon_sha256":"5fe09c79f7252b57bdaba386bb872c1c9c89e7715ad553a57cbdd12f52805adf"},"schema_version":"1.0","source":{"id":"1507.07741","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07741","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07741v1","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07741","created_at":"2026-05-18T00:35:49Z"},{"alias_kind":"pith_short_12","alias_value":"IIQEHGFFRLF6","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IIQEHGFFRLF6RJGE","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IIQEHGFF","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:0234ed5d6189045149f54b17f9382b3fa77967bd137bf14d4f313b7fa375c963","target":"graph","created_at":"2026-05-18T00:35:49Z","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":"A droplet of millimeter-to-centimeter scale can exhibit electrostatic levitation, and such levitated droplets can be used for the measurement of the surface tension of the liquids by observing the characteristic frequency of oscillatory deformation. In the present study, a simple mechanical model is proposed by considering a single mode of oscillation in the ellipsoidal deformation of a levitated rotating droplet. By measuring the oscillation frequency with respect to the rotational speed and oscillation amplitude, it is expected that the accuracy of the surface tension measurement could be im","authors_text":"Akiko Kaneko, Hiroyuki Kitahata, Katsuhiro Nishinari, Koji Hasegawa, Rui Tanaka, Satoshi Matsumoto, Tadashi Watanabe, Tetsuya Kanagawa, Yuki Koyano, Yutaka Abe","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-07-28T12:36:34Z","title":"Oscillation of a Rotating Levitated Droplet: Analysis with a Mechanical Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07741","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":"sha256:09c59233cd62fff08ddc2b40ee66c6c6a8dd39e2b610a48d500c43d1f6f59ecd","target":"record","created_at":"2026-05-18T00:35:49Z","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":"d8446e2e2b1a637d1ee90fb669c0edbac7742464ab303457d5a47910bd52a9ff","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-07-28T12:36:34Z","title_canon_sha256":"5fe09c79f7252b57bdaba386bb872c1c9c89e7715ad553a57cbdd12f52805adf"},"schema_version":"1.0","source":{"id":"1507.07741","kind":"arxiv","version":1}},"canonical_sha256":"42204398a58acbe8a4c456ebf814d77c25e7fceb1249de1932a0aa361302bc59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42204398a58acbe8a4c456ebf814d77c25e7fceb1249de1932a0aa361302bc59","first_computed_at":"2026-05-18T00:35:49.138611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:49.138611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jegy91unTNGM3rY5ZvhNIP+ucw5ElyHH4W724nsy+SOCwdu+STig4Ywf1FFgTwa31os0iRdkfMT//wUjf8IhDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:49.139395Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07741","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09c59233cd62fff08ddc2b40ee66c6c6a8dd39e2b610a48d500c43d1f6f59ecd","sha256:0234ed5d6189045149f54b17f9382b3fa77967bd137bf14d4f313b7fa375c963"],"state_sha256":"d72f0637ef3a95838354f42c8e4936543ab7f79eaf6348e6bfdeb1d7c733cea9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mhkadhd4EPFOe2MICNWkXasuxRIL+NtXFc0/VJwHisuTuHynPADFkjDlzip3PAWZXuaCMZbd78HH0iRG4e7RDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T17:18:46.767177Z","bundle_sha256":"60c767d5ca5c5856ff8379e38e013552d477200a85b0d7a50120930146bc7d4b"}}