{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:M3OM6FVSUYL4WIJ3QUZPI4FH4D","short_pith_number":"pith:M3OM6FVS","canonical_record":{"source":{"id":"1907.08498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-19T13:05:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"418875306248c23cb9d5d891733dd646430f54e24547c8e9dc1b33d75d3f803a","abstract_canon_sha256":"f42a62a1e475641e5a64c97bc1edd6d2afcc0094758e15a1b79a6e013cd65e42"},"schema_version":"1.0"},"canonical_sha256":"66dccf16b2a617cb213b8532f470a7e0f5f27c959c2e0e3321f29d2d94c8b029","source":{"kind":"arxiv","id":"1907.08498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08498","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08498v1","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08498","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"M3OM6FVSUYL4","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"M3OM6FVSUYL4WIJ3","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"M3OM6FVS","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:M3OM6FVSUYL4WIJ3QUZPI4FH4D","target":"record","payload":{"canonical_record":{"source":{"id":"1907.08498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-19T13:05:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"418875306248c23cb9d5d891733dd646430f54e24547c8e9dc1b33d75d3f803a","abstract_canon_sha256":"f42a62a1e475641e5a64c97bc1edd6d2afcc0094758e15a1b79a6e013cd65e42"},"schema_version":"1.0"},"canonical_sha256":"66dccf16b2a617cb213b8532f470a7e0f5f27c959c2e0e3321f29d2d94c8b029","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:09.635472Z","signature_b64":"N82AXVLs4bCgzr8mqaglC4HfqrsR6cVOA7rVq+AtvOlhok1J1Wr7ggc+un7DiY8IVB/xqLad4hfxkSH23hBaAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66dccf16b2a617cb213b8532f470a7e0f5f27c959c2e0e3321f29d2d94c8b029","last_reissued_at":"2026-05-17T23:40:09.634738Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:09.634738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.08498","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":"2026-05-17T23:40:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cWff6VeNlopYrI+dbfugYQVOaIVD1QIOR7e7KRMNW6rsso3rknh7pKgLJ8a63CMedftAml70OuPmFu7bB1/jCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T13:22:51.293860Z"},"content_sha256":"f28f0d9b735a3db1696930dd36bfda25b1bb47aad24a58b08c64c0ec2b51d62a","schema_version":"1.0","event_id":"sha256:f28f0d9b735a3db1696930dd36bfda25b1bb47aad24a58b08c64c0ec2b51d62a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:M3OM6FVSUYL4WIJ3QUZPI4FH4D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamic multi-focus laser writing with acousto-optofluidics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"A. Zunino, M. Duocastella, S. Surdo","submitted_at":"2019-07-19T13:05:04Z","abstract_excerpt":"Laser writing of materials is normally performed by the sequential scanning of a single focused beam across a sample. This process is time-consuming and it can severely limit the throughput of laser systems in key applications such as surgery, microelectronics, or manufacturing. Here we report a parallelization strategy based on ultrasound waves in a liquid to diffract light into multiple beamlets. Adjusting amplitude, frequency, or phase of ultrasound allows tunable multi-focus distributions with sub-microsecond control. When combined with sample translation, the dynamic splitting of light le"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08498","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":"2026-05-17T23:40:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/DxXEgtk85lEI322LZ1vPsMi5QTgZOl32yPeZDNq1+L+Z8uYyhbqtkdVP5cpKuEasYYyiIFpw7Y8ZkS6u/KzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T13:22:51.294198Z"},"content_sha256":"aa770383e29d8a854ec07ebc733025ca11589a7bb472df907acd98bf822eb3f0","schema_version":"1.0","event_id":"sha256:aa770383e29d8a854ec07ebc733025ca11589a7bb472df907acd98bf822eb3f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/bundle.json","state_url":"https://pith.science/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/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":"2026-06-28T13:22:51Z","links":{"resolver":"https://pith.science/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D","bundle":"https://pith.science/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/bundle.json","state":"https://pith.science/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M3OM6FVSUYL4WIJ3QUZPI4FH4D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:M3OM6FVSUYL4WIJ3QUZPI4FH4D","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":"f42a62a1e475641e5a64c97bc1edd6d2afcc0094758e15a1b79a6e013cd65e42","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-19T13:05:04Z","title_canon_sha256":"418875306248c23cb9d5d891733dd646430f54e24547c8e9dc1b33d75d3f803a"},"schema_version":"1.0","source":{"id":"1907.08498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08498","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08498v1","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08498","created_at":"2026-05-17T23:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"M3OM6FVSUYL4","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"M3OM6FVSUYL4WIJ3","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"M3OM6FVS","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:aa770383e29d8a854ec07ebc733025ca11589a7bb472df907acd98bf822eb3f0","target":"graph","created_at":"2026-05-17T23:40:09Z","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":"Laser writing of materials is normally performed by the sequential scanning of a single focused beam across a sample. This process is time-consuming and it can severely limit the throughput of laser systems in key applications such as surgery, microelectronics, or manufacturing. Here we report a parallelization strategy based on ultrasound waves in a liquid to diffract light into multiple beamlets. Adjusting amplitude, frequency, or phase of ultrasound allows tunable multi-focus distributions with sub-microsecond control. When combined with sample translation, the dynamic splitting of light le","authors_text":"A. Zunino, M. Duocastella, S. Surdo","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-19T13:05:04Z","title":"Dynamic multi-focus laser writing with acousto-optofluidics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08498","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:f28f0d9b735a3db1696930dd36bfda25b1bb47aad24a58b08c64c0ec2b51d62a","target":"record","created_at":"2026-05-17T23:40:09Z","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":"f42a62a1e475641e5a64c97bc1edd6d2afcc0094758e15a1b79a6e013cd65e42","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-19T13:05:04Z","title_canon_sha256":"418875306248c23cb9d5d891733dd646430f54e24547c8e9dc1b33d75d3f803a"},"schema_version":"1.0","source":{"id":"1907.08498","kind":"arxiv","version":1}},"canonical_sha256":"66dccf16b2a617cb213b8532f470a7e0f5f27c959c2e0e3321f29d2d94c8b029","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66dccf16b2a617cb213b8532f470a7e0f5f27c959c2e0e3321f29d2d94c8b029","first_computed_at":"2026-05-17T23:40:09.634738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:09.634738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N82AXVLs4bCgzr8mqaglC4HfqrsR6cVOA7rVq+AtvOlhok1J1Wr7ggc+un7DiY8IVB/xqLad4hfxkSH23hBaAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:09.635472Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.08498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f28f0d9b735a3db1696930dd36bfda25b1bb47aad24a58b08c64c0ec2b51d62a","sha256:aa770383e29d8a854ec07ebc733025ca11589a7bb472df907acd98bf822eb3f0"],"state_sha256":"7e05f567fc0a7970127e2763d2fc675656fbc8cb01d2f01d96cc30cc3cbb3cf5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SVCoKsWtxmagSY6tqijXZV1zx5qKHZ4DKvRkkEhsMPkghD0MRr89nAP/Wh8Nd6I9+d4a5qqWULkj7if+VJGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T13:22:51.296201Z","bundle_sha256":"16983075994a1b751a622d834e78895683dd822e828fb391b77993985b91827e"}}