{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:V55UQEJVZIJNXZHOP2FFY4HKOL","short_pith_number":"pith:V55UQEJV","canonical_record":{"source":{"id":"1307.5034","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-18T18:31:26Z","cross_cats_sorted":[],"title_canon_sha256":"7076d8a0d21549da41e55d897868e091f41185b4984ccc3d840f27bbd0ff9c88","abstract_canon_sha256":"9ae54997b40384f1b6408aaf5d43540f7378f88804e533da4b03c32aeacee8b6"},"schema_version":"1.0"},"canonical_sha256":"af7b481135ca12dbe4ee7e8a5c70ea72ec9e434864953875d85e3afefc2176b5","source":{"kind":"arxiv","id":"1307.5034","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5034","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5034v1","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5034","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"pith_short_12","alias_value":"V55UQEJVZIJN","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"V55UQEJVZIJNXZHO","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"V55UQEJV","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:V55UQEJVZIJNXZHOP2FFY4HKOL","target":"record","payload":{"canonical_record":{"source":{"id":"1307.5034","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-18T18:31:26Z","cross_cats_sorted":[],"title_canon_sha256":"7076d8a0d21549da41e55d897868e091f41185b4984ccc3d840f27bbd0ff9c88","abstract_canon_sha256":"9ae54997b40384f1b6408aaf5d43540f7378f88804e533da4b03c32aeacee8b6"},"schema_version":"1.0"},"canonical_sha256":"af7b481135ca12dbe4ee7e8a5c70ea72ec9e434864953875d85e3afefc2176b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:06.864099Z","signature_b64":"c27og4IciDsncS9aoO1TX9OaBS9lM8iKLqUTwVIn31664lXpQ/6mvu8XBaTMAS+xWeh7e9I/3r3aYzAq2UhHAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af7b481135ca12dbe4ee7e8a5c70ea72ec9e434864953875d85e3afefc2176b5","last_reissued_at":"2026-05-18T03:18:06.863256Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:06.863256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.5034","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":"2026-05-18T03:18:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"maCFRKAHW9l2q+3uxqTw39JsBqNNshGlSw2SNMBLjol+0O4W79PCYs5Ng42p3agmF+NFPBY6fp5wnCYqznoqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:49:40.932945Z"},"content_sha256":"eb6c42c040590a10149d2ffc055373a6512ed0e199af728e147b77e9ad77f939","schema_version":"1.0","event_id":"sha256:eb6c42c040590a10149d2ffc055373a6512ed0e199af728e147b77e9ad77f939"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:V55UQEJVZIJNXZHOP2FFY4HKOL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Far Field measurement in the focal plane of a lens : a cautionary note","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Pierre Suret, Stephane Randoux","submitted_at":"2013-07-18T18:31:26Z","abstract_excerpt":"We study theoretically the accuracy of the method based on the Fourier property of lenses that is commonly used for the far field measurement. We consider a simple optical setup in which the far-field intensity pattern of a light beam passing through a Kerr medium is recorded by a CCD camera located in the back focal plane of a thin lens. Using Fresnel diffraction formula and numerical computations, we investigate the influence of a slight longitudinal mispositioning of the CCD camera. Considering a coherent gaussian beam, we show that a tiny error in the position of the CCD camera can produce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5034","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":"2026-05-18T03:18:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0dPL/+uPjuihJf22+Gw8+lVazPrlHw+Motn/YRMEe+c/MEaa2q9r23AfBcXft/6E86NLmhGeZPaPhUTgczMvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:49:40.933294Z"},"content_sha256":"5c8bafd8487596925521b04ca1a517427d9f245012bf1d75a34ef55174a6661d","schema_version":"1.0","event_id":"sha256:5c8bafd8487596925521b04ca1a517427d9f245012bf1d75a34ef55174a6661d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/bundle.json","state_url":"https://pith.science/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/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":"2026-06-02T11:49:40Z","links":{"resolver":"https://pith.science/pith/V55UQEJVZIJNXZHOP2FFY4HKOL","bundle":"https://pith.science/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/bundle.json","state":"https://pith.science/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V55UQEJVZIJNXZHOP2FFY4HKOL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:V55UQEJVZIJNXZHOP2FFY4HKOL","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":"9ae54997b40384f1b6408aaf5d43540f7378f88804e533da4b03c32aeacee8b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-18T18:31:26Z","title_canon_sha256":"7076d8a0d21549da41e55d897868e091f41185b4984ccc3d840f27bbd0ff9c88"},"schema_version":"1.0","source":{"id":"1307.5034","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5034","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5034v1","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5034","created_at":"2026-05-18T03:18:06Z"},{"alias_kind":"pith_short_12","alias_value":"V55UQEJVZIJN","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"V55UQEJVZIJNXZHO","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"V55UQEJV","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:5c8bafd8487596925521b04ca1a517427d9f245012bf1d75a34ef55174a6661d","target":"graph","created_at":"2026-05-18T03:18:06Z","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 study theoretically the accuracy of the method based on the Fourier property of lenses that is commonly used for the far field measurement. We consider a simple optical setup in which the far-field intensity pattern of a light beam passing through a Kerr medium is recorded by a CCD camera located in the back focal plane of a thin lens. Using Fresnel diffraction formula and numerical computations, we investigate the influence of a slight longitudinal mispositioning of the CCD camera. Considering a coherent gaussian beam, we show that a tiny error in the position of the CCD camera can produce","authors_text":"Pierre Suret, Stephane Randoux","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-18T18:31:26Z","title":"Far Field measurement in the focal plane of a lens : a cautionary note"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5034","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:eb6c42c040590a10149d2ffc055373a6512ed0e199af728e147b77e9ad77f939","target":"record","created_at":"2026-05-18T03:18:06Z","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":"9ae54997b40384f1b6408aaf5d43540f7378f88804e533da4b03c32aeacee8b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-18T18:31:26Z","title_canon_sha256":"7076d8a0d21549da41e55d897868e091f41185b4984ccc3d840f27bbd0ff9c88"},"schema_version":"1.0","source":{"id":"1307.5034","kind":"arxiv","version":1}},"canonical_sha256":"af7b481135ca12dbe4ee7e8a5c70ea72ec9e434864953875d85e3afefc2176b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af7b481135ca12dbe4ee7e8a5c70ea72ec9e434864953875d85e3afefc2176b5","first_computed_at":"2026-05-18T03:18:06.863256Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:06.863256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c27og4IciDsncS9aoO1TX9OaBS9lM8iKLqUTwVIn31664lXpQ/6mvu8XBaTMAS+xWeh7e9I/3r3aYzAq2UhHAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:06.864099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5034","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb6c42c040590a10149d2ffc055373a6512ed0e199af728e147b77e9ad77f939","sha256:5c8bafd8487596925521b04ca1a517427d9f245012bf1d75a34ef55174a6661d"],"state_sha256":"84704bca2ac57e5069b67fecdbc5f4a8e261f0df43dd738f053b1dcb34c56877"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pgWXxwbPiVgamaJK152Sqt4Db6nmQyQup3jQ3K/KsfmNWvNBx/7jNTJBIRNio874EU9tKSl4qEBUlcaGvTuMDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T11:49:40.935253Z","bundle_sha256":"ebb2f4ccc0752335562f8924e9eff433d3685d6508f73025bf80013b5796b7eb"}}