{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FVGX6US22WDCD5HNPXZIESJART","short_pith_number":"pith:FVGX6US2","canonical_record":{"source":{"id":"1502.07255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-02-25T17:11:59Z","cross_cats_sorted":[],"title_canon_sha256":"5eb196d5465ce023fad0eeab703816376d4af1a2d74d2ea9928fec85d24c5e5e","abstract_canon_sha256":"721e3251ce0e4891eca7fcd2b9ebc191b898b986dc089fca4f722e6943927eac"},"schema_version":"1.0"},"canonical_sha256":"2d4d7f525ad58621f4ed7df28249208cdf7f069f0af28d75e7c728ba07bff417","source":{"kind":"arxiv","id":"1502.07255","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07255","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07255v1","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07255","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"FVGX6US22WDC","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FVGX6US22WDCD5HN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FVGX6US2","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FVGX6US22WDCD5HNPXZIESJART","target":"record","payload":{"canonical_record":{"source":{"id":"1502.07255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-02-25T17:11:59Z","cross_cats_sorted":[],"title_canon_sha256":"5eb196d5465ce023fad0eeab703816376d4af1a2d74d2ea9928fec85d24c5e5e","abstract_canon_sha256":"721e3251ce0e4891eca7fcd2b9ebc191b898b986dc089fca4f722e6943927eac"},"schema_version":"1.0"},"canonical_sha256":"2d4d7f525ad58621f4ed7df28249208cdf7f069f0af28d75e7c728ba07bff417","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:26:11.452803Z","signature_b64":"yMm1/59jXfD02PXrfctGww7Q6kcHEmqC8cg5KcsVClX3LZmN+OB/FCQz5IJK1aEqE8QXeqR1X5hJ6WJY8s93DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d4d7f525ad58621f4ed7df28249208cdf7f069f0af28d75e7c728ba07bff417","last_reissued_at":"2026-05-18T02:26:11.452130Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:26:11.452130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.07255","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":"2026-05-18T02:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QWObOCOGdXAIdB21uz5g828lFHB0XWHmXstXMsqqOAPj8BN3+Xe4We8eBQuKVd97hdKcEVnyxmVaabzpAkvGAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:58:23.611512Z"},"content_sha256":"9cd877b04d9ad18a12b6c7a034992e9c809d561daf7c1ac2e5ff8d1cbc15f79f","schema_version":"1.0","event_id":"sha256:9cd877b04d9ad18a12b6c7a034992e9c809d561daf7c1ac2e5ff8d1cbc15f79f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FVGX6US22WDCD5HNPXZIESJART","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time-resolved imaging with OKE-based time-gate: enhancement in spatial resolution using low-coherence ultra-short illumination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Claude Roz\\'e, Harsh Purwar, Jean-Bernard Blaisot, Sa\\\"id Idlahcen","submitted_at":"2015-02-25T17:11:59Z","abstract_excerpt":"We propose a collinear optical Kerr effect (OKE) based time-gate configuration with low coherence illumination source, derived from the supercontinuum (SC) generated by focusing the femtosecond laser pulses inside water. At first the spectral broadening in SC generation and corresponding changes in its coherence properties are studied and then a narrow band of wavelengths is extracted to use as the probe beam in the OKE-based time-gate configuration. The gate timings and spatial resolution of the time-gated images are also investigated. The low coherence of the probe ensures that the artifacts"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07255","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":"2026-05-18T02:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GwVtOO8TJtimhUZgW3bSZyRc89YEdvMwM5evUrpWZdAylIPqvXBxunJcNjIMpI1Tz9YiB4+wpAbULUlftkhqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:58:23.612011Z"},"content_sha256":"6a16c05bfe944a7ac09afd6a9d8e83509c374a62dd32fb2c3d4471cb56bee509","schema_version":"1.0","event_id":"sha256:6a16c05bfe944a7ac09afd6a9d8e83509c374a62dd32fb2c3d4471cb56bee509"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FVGX6US22WDCD5HNPXZIESJART/bundle.json","state_url":"https://pith.science/pith/FVGX6US22WDCD5HNPXZIESJART/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FVGX6US22WDCD5HNPXZIESJART/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":"2026-06-02T01:58:23Z","links":{"resolver":"https://pith.science/pith/FVGX6US22WDCD5HNPXZIESJART","bundle":"https://pith.science/pith/FVGX6US22WDCD5HNPXZIESJART/bundle.json","state":"https://pith.science/pith/FVGX6US22WDCD5HNPXZIESJART/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FVGX6US22WDCD5HNPXZIESJART/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FVGX6US22WDCD5HNPXZIESJART","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":"721e3251ce0e4891eca7fcd2b9ebc191b898b986dc089fca4f722e6943927eac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-02-25T17:11:59Z","title_canon_sha256":"5eb196d5465ce023fad0eeab703816376d4af1a2d74d2ea9928fec85d24c5e5e"},"schema_version":"1.0","source":{"id":"1502.07255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07255","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07255v1","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07255","created_at":"2026-05-18T02:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"FVGX6US22WDC","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FVGX6US22WDCD5HN","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FVGX6US2","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:6a16c05bfe944a7ac09afd6a9d8e83509c374a62dd32fb2c3d4471cb56bee509","target":"graph","created_at":"2026-05-18T02:26:11Z","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 propose a collinear optical Kerr effect (OKE) based time-gate configuration with low coherence illumination source, derived from the supercontinuum (SC) generated by focusing the femtosecond laser pulses inside water. At first the spectral broadening in SC generation and corresponding changes in its coherence properties are studied and then a narrow band of wavelengths is extracted to use as the probe beam in the OKE-based time-gate configuration. The gate timings and spatial resolution of the time-gated images are also investigated. The low coherence of the probe ensures that the artifacts","authors_text":"Claude Roz\\'e, Harsh Purwar, Jean-Bernard Blaisot, Sa\\\"id Idlahcen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-02-25T17:11:59Z","title":"Time-resolved imaging with OKE-based time-gate: enhancement in spatial resolution using low-coherence ultra-short illumination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07255","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":"sha256:9cd877b04d9ad18a12b6c7a034992e9c809d561daf7c1ac2e5ff8d1cbc15f79f","target":"record","created_at":"2026-05-18T02:26:11Z","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":"721e3251ce0e4891eca7fcd2b9ebc191b898b986dc089fca4f722e6943927eac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-02-25T17:11:59Z","title_canon_sha256":"5eb196d5465ce023fad0eeab703816376d4af1a2d74d2ea9928fec85d24c5e5e"},"schema_version":"1.0","source":{"id":"1502.07255","kind":"arxiv","version":1}},"canonical_sha256":"2d4d7f525ad58621f4ed7df28249208cdf7f069f0af28d75e7c728ba07bff417","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d4d7f525ad58621f4ed7df28249208cdf7f069f0af28d75e7c728ba07bff417","first_computed_at":"2026-05-18T02:26:11.452130Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:26:11.452130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yMm1/59jXfD02PXrfctGww7Q6kcHEmqC8cg5KcsVClX3LZmN+OB/FCQz5IJK1aEqE8QXeqR1X5hJ6WJY8s93DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:26:11.452803Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cd877b04d9ad18a12b6c7a034992e9c809d561daf7c1ac2e5ff8d1cbc15f79f","sha256:6a16c05bfe944a7ac09afd6a9d8e83509c374a62dd32fb2c3d4471cb56bee509"],"state_sha256":"ed455f9b4469528cc2178ac254f39038013ac0e654bcb6d34cd3472bf6b13b60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TD1yCEcGj54KDnazmoAKdDh96PYdGbCqzosfK94pwiFuPHTjl1O5CxCnWCQkwtaAYanp8h7gWXwNby2c6/s7Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:58:23.614069Z","bundle_sha256":"1a00b70b711d84d732c4041baee62e66d386f0aa8332d29f9e9321733967038f"}}