{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:2OXCVIGEM36EWS3XWT2KIRU47O","short_pith_number":"pith:2OXCVIGE","canonical_record":{"source":{"id":"1908.03439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-09T12:41:57Z","cross_cats_sorted":[],"title_canon_sha256":"3ca68f2d159c117dd4ab3236ba45c0ae44c3f56b6f5434d5cf3cd18c9070ae34","abstract_canon_sha256":"32cf887b98ad606b7315eab18591df4cef8e1bb28271c204140b432a1f9feb06"},"schema_version":"1.0"},"canonical_sha256":"d3ae2aa0c466fc4b4b77b4f4a4469cfb9b4ee34163ab860b80b8a1d8d78c9731","source":{"kind":"arxiv","id":"1908.03439","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03439","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03439v1","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03439","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"2OXCVIGEM36E","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"2OXCVIGEM36EWS3X","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"2OXCVIGE","created_at":"2026-07-05T00:38:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:2OXCVIGEM36EWS3XWT2KIRU47O","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-09T12:41:57Z","cross_cats_sorted":[],"title_canon_sha256":"3ca68f2d159c117dd4ab3236ba45c0ae44c3f56b6f5434d5cf3cd18c9070ae34","abstract_canon_sha256":"32cf887b98ad606b7315eab18591df4cef8e1bb28271c204140b432a1f9feb06"},"schema_version":"1.0"},"canonical_sha256":"d3ae2aa0c466fc4b4b77b4f4a4469cfb9b4ee34163ab860b80b8a1d8d78c9731","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:38:25.844258Z","signature_b64":"qyWet0DRqM06BMe0lxUxknbe5dn0zVE//qx2CKAEfGm9jLdDiwK3tMfDmd4hCZh8z57qsJf11+XnQGvqefdLAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3ae2aa0c466fc4b4b77b4f4a4469cfb9b4ee34163ab860b80b8a1d8d78c9731","last_reissued_at":"2026-07-05T00:38:25.843878Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:38:25.843878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03439","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":"2026-07-05T00:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0+BlpOcClqF0ALugq3jDGtOkq7TSQUjB/GN12WvooFJATomFYsYtwQ6LGrhOrdtewsxU9SqWc0RJwGKTO7F6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:44:20.357777Z"},"content_sha256":"bb55c25d44c31163096276214bade22f74bc85406bdc31d6cbf77c96295b3d65","schema_version":"1.0","event_id":"sha256:bb55c25d44c31163096276214bade22f74bc85406bdc31d6cbf77c96295b3d65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:2OXCVIGEM36EWS3XWT2KIRU47O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scattering of light with angular momentum from an array of particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alison Yao, Duncan McArthur, Francesco Papoff","submitted_at":"2019-08-09T12:41:57Z","abstract_excerpt":"Understanding the scattering properties of various media is of critical importance in many applications, from secure, high-bandwidth communications to extracting information about biological and mineral particles dissolved in sea water. In this paper we demonstrate how beams carrying orbital angular momentum (OAM) can be used to detect the presence of symmetric or chiral subsets of particles in disordered media. Using a generalized Mie theory we calculate analytical expressions for quasi-monochromatic structured light scattered by dilute distributions of micro- and nanoparticles. These allow u"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03439","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/1908.03439/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":"2026-07-05T00:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51hJUIzi9a6NcoOMO8dGNs7fvBiKoi1VJUVB7OrvY/01dy+A96oaGcKT95GRnPwkaCVsiJ68RmKkTo850xDSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:44:20.358151Z"},"content_sha256":"9af5771a2e4bd5a857539dc002d7760c83804f443759279448e8e6ab47ade40f","schema_version":"1.0","event_id":"sha256:9af5771a2e4bd5a857539dc002d7760c83804f443759279448e8e6ab47ade40f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2OXCVIGEM36EWS3XWT2KIRU47O/bundle.json","state_url":"https://pith.science/pith/2OXCVIGEM36EWS3XWT2KIRU47O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2OXCVIGEM36EWS3XWT2KIRU47O/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":"2026-07-07T14:44:20Z","links":{"resolver":"https://pith.science/pith/2OXCVIGEM36EWS3XWT2KIRU47O","bundle":"https://pith.science/pith/2OXCVIGEM36EWS3XWT2KIRU47O/bundle.json","state":"https://pith.science/pith/2OXCVIGEM36EWS3XWT2KIRU47O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2OXCVIGEM36EWS3XWT2KIRU47O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2OXCVIGEM36EWS3XWT2KIRU47O","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":"32cf887b98ad606b7315eab18591df4cef8e1bb28271c204140b432a1f9feb06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-09T12:41:57Z","title_canon_sha256":"3ca68f2d159c117dd4ab3236ba45c0ae44c3f56b6f5434d5cf3cd18c9070ae34"},"schema_version":"1.0","source":{"id":"1908.03439","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03439","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03439v1","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03439","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"2OXCVIGEM36E","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"2OXCVIGEM36EWS3X","created_at":"2026-07-05T00:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"2OXCVIGE","created_at":"2026-07-05T00:38:25Z"}],"graph_snapshots":[{"event_id":"sha256:9af5771a2e4bd5a857539dc002d7760c83804f443759279448e8e6ab47ade40f","target":"graph","created_at":"2026-07-05T00:38:25Z","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/1908.03439/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding the scattering properties of various media is of critical importance in many applications, from secure, high-bandwidth communications to extracting information about biological and mineral particles dissolved in sea water. In this paper we demonstrate how beams carrying orbital angular momentum (OAM) can be used to detect the presence of symmetric or chiral subsets of particles in disordered media. Using a generalized Mie theory we calculate analytical expressions for quasi-monochromatic structured light scattered by dilute distributions of micro- and nanoparticles. These allow u","authors_text":"Alison Yao, Duncan McArthur, Francesco Papoff","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-09T12:41:57Z","title":"Scattering of light with angular momentum from an array of particles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03439","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:bb55c25d44c31163096276214bade22f74bc85406bdc31d6cbf77c96295b3d65","target":"record","created_at":"2026-07-05T00:38:25Z","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":"32cf887b98ad606b7315eab18591df4cef8e1bb28271c204140b432a1f9feb06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-09T12:41:57Z","title_canon_sha256":"3ca68f2d159c117dd4ab3236ba45c0ae44c3f56b6f5434d5cf3cd18c9070ae34"},"schema_version":"1.0","source":{"id":"1908.03439","kind":"arxiv","version":1}},"canonical_sha256":"d3ae2aa0c466fc4b4b77b4f4a4469cfb9b4ee34163ab860b80b8a1d8d78c9731","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3ae2aa0c466fc4b4b77b4f4a4469cfb9b4ee34163ab860b80b8a1d8d78c9731","first_computed_at":"2026-07-05T00:38:25.843878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:38:25.843878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qyWet0DRqM06BMe0lxUxknbe5dn0zVE//qx2CKAEfGm9jLdDiwK3tMfDmd4hCZh8z57qsJf11+XnQGvqefdLAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:38:25.844258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03439","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb55c25d44c31163096276214bade22f74bc85406bdc31d6cbf77c96295b3d65","sha256:9af5771a2e4bd5a857539dc002d7760c83804f443759279448e8e6ab47ade40f"],"state_sha256":"cab1b6afe7767430debc757e9bab725f9974748d328cb1bf5a1362a0a17db103"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y5bAfNZERsW6q5zeGaWOOCEwvnMv53ByQosPj1diFcYGlgyW3m+cCCdx6rLLdpyqtwp2vc2YQ6URzcoBuvJhDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T14:44:20.360128Z","bundle_sha256":"8869c575274d4b9fbdb551f923516dc6b982cef1d84575a81a21f9971d79b020"}}