{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DHHI5R7OK2NZPKHD3XBL2IJLM6","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":"0bbc247e0290fb9b056af7424ae93753bac607d5d166c8f8fcc4495c704b4ea9","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-08-24T13:31:28Z","title_canon_sha256":"6f7bcc4fce459aa23a5cf47efcb35ecce16578c4643d1504c38d879d3fdd2f7c"},"schema_version":"1.0","source":{"id":"1809.07152","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07152","created_at":"2026-05-18T00:05:20Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07152v1","created_at":"2026-05-18T00:05:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07152","created_at":"2026-05-18T00:05:20Z"},{"alias_kind":"pith_short_12","alias_value":"DHHI5R7OK2NZ","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DHHI5R7OK2NZPKHD","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DHHI5R7O","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:b2dca0dbb81375375cfc17158366e01c2671bb332c0b69cbc9bbcf7cbfc59d0b","target":"graph","created_at":"2026-05-18T00:05:20Z","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":"Ultrafast Bessel beams demonstrate a significant capacity of structuring transparent materials with high degree of accuracy and exceptional aspect ratio. The ability to localize energy on the nanometer scale (bypassing the 100 nm milestone) makes them ideal tools for advanced laser nanoscale processing on surfaces and in the bulk. This allows to generate and combine micron and nano-sized features into hybrid structures that show novel functionalities. Their high aspect ratio and the accurate location can equally drive an efficient material modification and processing strategy on large dimensio","authors_text":"Francois Courvoisier, Guanghua Cheng, Guodong Zhang, Manoj K. Bhuyan, Razvan Stoian, Remi Meyer","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-08-24T13:31:28Z","title":"Ultrafast Bessel beams; advanced tools for laser materials processing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07152","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":"sha256:1f5cf820de1439a669ef5b200a268a94e82841292a3c701e29a4ce9acc89fa50","target":"record","created_at":"2026-05-18T00:05:20Z","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":"0bbc247e0290fb9b056af7424ae93753bac607d5d166c8f8fcc4495c704b4ea9","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-08-24T13:31:28Z","title_canon_sha256":"6f7bcc4fce459aa23a5cf47efcb35ecce16578c4643d1504c38d879d3fdd2f7c"},"schema_version":"1.0","source":{"id":"1809.07152","kind":"arxiv","version":1}},"canonical_sha256":"19ce8ec7ee569b97a8e3ddc2bd212b67a629ec5245a6d76c0e39d86123d05356","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19ce8ec7ee569b97a8e3ddc2bd212b67a629ec5245a6d76c0e39d86123d05356","first_computed_at":"2026-05-18T00:05:20.574047Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:20.574047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bBJXL9ScGrAT0LaokxAa1Qpt7Ve2cMebh7gAaQLAq+EbaHFmG+pzDfuvNp4t7cgQGP2JDkZyqldwiTppiWPNBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:20.574786Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.07152","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f5cf820de1439a669ef5b200a268a94e82841292a3c701e29a4ce9acc89fa50","sha256:b2dca0dbb81375375cfc17158366e01c2671bb332c0b69cbc9bbcf7cbfc59d0b"],"state_sha256":"8810fe9b774066c9b1ddcacff501eecac686b8e992f2f5f6129d44aea8b640e3"}