{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:7PDVKCBWWLRUATUOWKQHPGHU6F","short_pith_number":"pith:7PDVKCBW","canonical_record":{"source":{"id":"2303.01360","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-03-02T15:41:08Z","cross_cats_sorted":[],"title_canon_sha256":"7b6ed41b718f4339c3fdf5d3d02aeaec99605cdad2891b41c252fba8f1607cc1","abstract_canon_sha256":"c60bfce2401a3fb4fe12343098d5c656f40778a6cf6b83a3feea98a67ffe9176"},"schema_version":"1.0"},"canonical_sha256":"fbc7550836b2e3404e8eb2a07798f4f16210654745c66eb7f6477361bfd075ee","source":{"kind":"arxiv","id":"2303.01360","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.01360","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"arxiv_version","alias_value":"2303.01360v1","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.01360","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_12","alias_value":"7PDVKCBWWLRU","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_16","alias_value":"7PDVKCBWWLRUATUO","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_8","alias_value":"7PDVKCBW","created_at":"2026-07-05T05:47:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:7PDVKCBWWLRUATUOWKQHPGHU6F","target":"record","payload":{"canonical_record":{"source":{"id":"2303.01360","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-03-02T15:41:08Z","cross_cats_sorted":[],"title_canon_sha256":"7b6ed41b718f4339c3fdf5d3d02aeaec99605cdad2891b41c252fba8f1607cc1","abstract_canon_sha256":"c60bfce2401a3fb4fe12343098d5c656f40778a6cf6b83a3feea98a67ffe9176"},"schema_version":"1.0"},"canonical_sha256":"fbc7550836b2e3404e8eb2a07798f4f16210654745c66eb7f6477361bfd075ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:47:29.998637Z","signature_b64":"g2YZyxi/fr2HH2OS0v/6oTAl5h4CWiG/AQLNGTLd+wvLxxxd49hsZKBNBRG9dT3zE/VlWbBYH+0hfpGDE/6KCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fbc7550836b2e3404e8eb2a07798f4f16210654745c66eb7f6477361bfd075ee","last_reissued_at":"2026-07-05T05:47:29.998201Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:47:29.998201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.01360","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":"2026-07-05T05:47:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xVrJSWS45gPF82h/723/6BSWUNCCm4kySdmxhW0USxa0OgSWUksUZfvuH7rflKwhwgKVxveCdoEPM/cUXBjSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T18:42:22.149677Z"},"content_sha256":"3d0e96c7d00337df6572574a10b070a882fef8526f1de473799a619e688ca0ee","schema_version":"1.0","event_id":"sha256:3d0e96c7d00337df6572574a10b070a882fef8526f1de473799a619e688ca0ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:7PDVKCBWWLRUATUOWKQHPGHU6F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring spatio-temporal couplings using modal spatio-spectral wavefront retrieval","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"A. Doepp, F. Haberstroh, F.M. Foerster, J. Esslinger, J. Schreiber, L. Doyle, N. Wei{\\ss}e, P. Norreys, S. Howard, S. Karsch","submitted_at":"2023-03-02T15:41:08Z","abstract_excerpt":"Knowledge of spatio-temporal couplings such as pulse-front tilt or curvature is important to determine the focused intensity of high-power lasers. Common techniques to diagnose these couplings are either qualitative or require hundreds of measurements. Here we present both a new algorithm for retrieving spatio-temporal couplings, as well as novel experimental implementations. Our method is based on the expression of the spatio-spectral phase in terms of a Zernike-Taylor basis, allowing us to directly quantify the coefficients for common spatio-temporal couplings. We take advantage of this meth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.01360","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.01360/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:47:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GxAA6oMkKy7P6Aexgbnf9lW+u1OvFoyHakXiYKeHd10sik8uwOPacpUEGkCsKqS4wzREi29Z+QAlCk74WUDYDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T18:42:22.150055Z"},"content_sha256":"e8f814999ec3bfe248a6c1df68bd25bb498aa9367b4fa1412c9619e7470aa450","schema_version":"1.0","event_id":"sha256:e8f814999ec3bfe248a6c1df68bd25bb498aa9367b4fa1412c9619e7470aa450"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/bundle.json","state_url":"https://pith.science/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/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":"2026-07-06T18:42:22Z","links":{"resolver":"https://pith.science/pith/7PDVKCBWWLRUATUOWKQHPGHU6F","bundle":"https://pith.science/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/bundle.json","state":"https://pith.science/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7PDVKCBWWLRUATUOWKQHPGHU6F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:7PDVKCBWWLRUATUOWKQHPGHU6F","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":"c60bfce2401a3fb4fe12343098d5c656f40778a6cf6b83a3feea98a67ffe9176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-03-02T15:41:08Z","title_canon_sha256":"7b6ed41b718f4339c3fdf5d3d02aeaec99605cdad2891b41c252fba8f1607cc1"},"schema_version":"1.0","source":{"id":"2303.01360","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.01360","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"arxiv_version","alias_value":"2303.01360v1","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.01360","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_12","alias_value":"7PDVKCBWWLRU","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_16","alias_value":"7PDVKCBWWLRUATUO","created_at":"2026-07-05T05:47:29Z"},{"alias_kind":"pith_short_8","alias_value":"7PDVKCBW","created_at":"2026-07-05T05:47:29Z"}],"graph_snapshots":[{"event_id":"sha256:e8f814999ec3bfe248a6c1df68bd25bb498aa9367b4fa1412c9619e7470aa450","target":"graph","created_at":"2026-07-05T05:47:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2303.01360/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Knowledge of spatio-temporal couplings such as pulse-front tilt or curvature is important to determine the focused intensity of high-power lasers. Common techniques to diagnose these couplings are either qualitative or require hundreds of measurements. Here we present both a new algorithm for retrieving spatio-temporal couplings, as well as novel experimental implementations. Our method is based on the expression of the spatio-spectral phase in terms of a Zernike-Taylor basis, allowing us to directly quantify the coefficients for common spatio-temporal couplings. We take advantage of this meth","authors_text":"A. Doepp, F. Haberstroh, F.M. Foerster, J. Esslinger, J. Schreiber, L. Doyle, N. Wei{\\ss}e, P. Norreys, S. Howard, S. Karsch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-03-02T15:41:08Z","title":"Measuring spatio-temporal couplings using modal spatio-spectral wavefront retrieval"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.01360","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":"sha256:3d0e96c7d00337df6572574a10b070a882fef8526f1de473799a619e688ca0ee","target":"record","created_at":"2026-07-05T05:47:29Z","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":"c60bfce2401a3fb4fe12343098d5c656f40778a6cf6b83a3feea98a67ffe9176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-03-02T15:41:08Z","title_canon_sha256":"7b6ed41b718f4339c3fdf5d3d02aeaec99605cdad2891b41c252fba8f1607cc1"},"schema_version":"1.0","source":{"id":"2303.01360","kind":"arxiv","version":1}},"canonical_sha256":"fbc7550836b2e3404e8eb2a07798f4f16210654745c66eb7f6477361bfd075ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbc7550836b2e3404e8eb2a07798f4f16210654745c66eb7f6477361bfd075ee","first_computed_at":"2026-07-05T05:47:29.998201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:47:29.998201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g2YZyxi/fr2HH2OS0v/6oTAl5h4CWiG/AQLNGTLd+wvLxxxd49hsZKBNBRG9dT3zE/VlWbBYH+0hfpGDE/6KCA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:47:29.998637Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.01360","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d0e96c7d00337df6572574a10b070a882fef8526f1de473799a619e688ca0ee","sha256:e8f814999ec3bfe248a6c1df68bd25bb498aa9367b4fa1412c9619e7470aa450"],"state_sha256":"7ed21f51ed38d7f987a02dbe2bb3aafb7fdacaad1478232077269c352e1f3576"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oRZv5+xlH9A1xmX3tb/mxq/3DH9R6piy1e5iR9uGgUAM6FKmaYkZSDDudc3PNvSy2wd/NOrlhK3U+HEMl8lVBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T18:42:22.152020Z","bundle_sha256":"f07b5e50acbc007e44e1ab410ea51da209cd64ffa0d4a301397c8d3df3efab95"}}