{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:TYXNURZMQRAGF6NCFDJQVQIWCG","short_pith_number":"pith:TYXNURZM","canonical_record":{"source":{"id":"1210.4016","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-10-12T18:27:07Z","cross_cats_sorted":[],"title_canon_sha256":"bea37756a1051bc430e1c26296d9a25824bb96919bb06eb6e893533c48c3cc2c","abstract_canon_sha256":"0cf9e99b4e6e71d039781b9e0f527a378af85692304f3bd759744a541bc3d127"},"schema_version":"1.0"},"canonical_sha256":"9e2eda472c844062f9a228d30ac11611b54d552a5f2641a8b8a007cccf80f567","source":{"kind":"arxiv","id":"1210.4016","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.4016","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"arxiv_version","alias_value":"1210.4016v1","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.4016","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"pith_short_12","alias_value":"TYXNURZMQRAG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TYXNURZMQRAGF6NC","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TYXNURZM","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:TYXNURZMQRAGF6NCFDJQVQIWCG","target":"record","payload":{"canonical_record":{"source":{"id":"1210.4016","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-10-12T18:27:07Z","cross_cats_sorted":[],"title_canon_sha256":"bea37756a1051bc430e1c26296d9a25824bb96919bb06eb6e893533c48c3cc2c","abstract_canon_sha256":"0cf9e99b4e6e71d039781b9e0f527a378af85692304f3bd759744a541bc3d127"},"schema_version":"1.0"},"canonical_sha256":"9e2eda472c844062f9a228d30ac11611b54d552a5f2641a8b8a007cccf80f567","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:43:08.275034Z","signature_b64":"584471RRSRvPQxlOBfPfwsBdUC+M2Yi9vdZxFCcQHDd4fZUJ2cTdoIWOGi3T+EeDFqqeOdq0brmxq9EjqxHWBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e2eda472c844062f9a228d30ac11611b54d552a5f2641a8b8a007cccf80f567","last_reissued_at":"2026-05-18T03:43:08.274213Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:43:08.274213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.4016","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":"2026-05-18T03:43:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VaDwE2NjbW/tnlEl8PaV6Jv8iDIFoKXXcRRXj8FK2vydATWk3Vpjr2NZSizmQpCBUzmRT8BoJO63DDG1MvQzCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:09:58.664372Z"},"content_sha256":"113a3b5ac15ebb0af0b20c312d903a9610bb5f6bece8b6366c4d72fb9bcea546","schema_version":"1.0","event_id":"sha256:113a3b5ac15ebb0af0b20c312d903a9610bb5f6bece8b6366c4d72fb9bcea546"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:TYXNURZMQRAGF6NCFDJQVQIWCG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Taming Acoustic Cavitation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Andrea Prosperetti, Bram Verhaagen, David Fernandez Rivas, Detlef Lohse, Han Gardeniers, Michel Versluis, Oscar R. Enriquez","submitted_at":"2012-10-12T18:27:07Z","abstract_excerpt":"In this fluid dynamics video we show acoustic cavitation occurring from pits etched on a silicon surface. By immersing the surface in a liquid, gas pockets are entrapped in the pits which upon ultrasonic insonation, are observed to shed cavitation bubbles. Modulating the driving pressure it is possible to induce different behaviours based on the force balance that determines the interaction among bubbles and the silicon surface. This system can be used for several applications like sonochemical water treatment, cleaning of surfaces with deposited materials such as biofilms."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4016","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":"2026-05-18T03:43:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aKEjTPqMaulrSdD73chumHEcYcKV6AuEIJTc0rLZBeIjB0qWTYAZ7bVic4cAKoAQ6YmIPYxs/TNAsFgD/mPICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:09:58.665067Z"},"content_sha256":"f6d3908d30b985f3e7dafce90e6cb86cad5621d00d5fb91266823d1b2f864047","schema_version":"1.0","event_id":"sha256:f6d3908d30b985f3e7dafce90e6cb86cad5621d00d5fb91266823d1b2f864047"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/bundle.json","state_url":"https://pith.science/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/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":"2026-05-26T05:09:58Z","links":{"resolver":"https://pith.science/pith/TYXNURZMQRAGF6NCFDJQVQIWCG","bundle":"https://pith.science/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/bundle.json","state":"https://pith.science/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TYXNURZMQRAGF6NCFDJQVQIWCG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TYXNURZMQRAGF6NCFDJQVQIWCG","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":"0cf9e99b4e6e71d039781b9e0f527a378af85692304f3bd759744a541bc3d127","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-10-12T18:27:07Z","title_canon_sha256":"bea37756a1051bc430e1c26296d9a25824bb96919bb06eb6e893533c48c3cc2c"},"schema_version":"1.0","source":{"id":"1210.4016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.4016","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"arxiv_version","alias_value":"1210.4016v1","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.4016","created_at":"2026-05-18T03:43:08Z"},{"alias_kind":"pith_short_12","alias_value":"TYXNURZMQRAG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TYXNURZMQRAGF6NC","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TYXNURZM","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:f6d3908d30b985f3e7dafce90e6cb86cad5621d00d5fb91266823d1b2f864047","target":"graph","created_at":"2026-05-18T03:43:08Z","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":"In this fluid dynamics video we show acoustic cavitation occurring from pits etched on a silicon surface. By immersing the surface in a liquid, gas pockets are entrapped in the pits which upon ultrasonic insonation, are observed to shed cavitation bubbles. Modulating the driving pressure it is possible to induce different behaviours based on the force balance that determines the interaction among bubbles and the silicon surface. This system can be used for several applications like sonochemical water treatment, cleaning of surfaces with deposited materials such as biofilms.","authors_text":"Andrea Prosperetti, Bram Verhaagen, David Fernandez Rivas, Detlef Lohse, Han Gardeniers, Michel Versluis, Oscar R. Enriquez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-10-12T18:27:07Z","title":"Taming Acoustic Cavitation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4016","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":"sha256:113a3b5ac15ebb0af0b20c312d903a9610bb5f6bece8b6366c4d72fb9bcea546","target":"record","created_at":"2026-05-18T03:43:08Z","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":"0cf9e99b4e6e71d039781b9e0f527a378af85692304f3bd759744a541bc3d127","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-10-12T18:27:07Z","title_canon_sha256":"bea37756a1051bc430e1c26296d9a25824bb96919bb06eb6e893533c48c3cc2c"},"schema_version":"1.0","source":{"id":"1210.4016","kind":"arxiv","version":1}},"canonical_sha256":"9e2eda472c844062f9a228d30ac11611b54d552a5f2641a8b8a007cccf80f567","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e2eda472c844062f9a228d30ac11611b54d552a5f2641a8b8a007cccf80f567","first_computed_at":"2026-05-18T03:43:08.274213Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:43:08.274213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"584471RRSRvPQxlOBfPfwsBdUC+M2Yi9vdZxFCcQHDd4fZUJ2cTdoIWOGi3T+EeDFqqeOdq0brmxq9EjqxHWBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:43:08.275034Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.4016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:113a3b5ac15ebb0af0b20c312d903a9610bb5f6bece8b6366c4d72fb9bcea546","sha256:f6d3908d30b985f3e7dafce90e6cb86cad5621d00d5fb91266823d1b2f864047"],"state_sha256":"d64bea4af38a88b1c332bb3094146f6a4cb688bcf9b7722c83b24c4aa7bca7f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XaXgHits2XQHBjF6phQ+ssm50BJx+xBsFcTBfMKhOAhJEgqx5kzqlbPEssbtJweQP1p1ANNUGuOIcjMIldUlCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:09:58.668703Z","bundle_sha256":"b42f4497ac9a5f26238c5d16813585ed601696abd1bb0cc5b31d975d3dd8c5f0"}}