{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:EXRHKCC7FMNPRPGIF7JA2NTQTZ","short_pith_number":"pith:EXRHKCC7","canonical_record":{"source":{"id":"1712.02892","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-07T23:51:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"06a0bcdf54ee00be22b1acc4eae487d2951313ba55d581447519d05d95d6c526","abstract_canon_sha256":"d210942ed9da460ad1341a9ce92db5de94c2f36de4bb2e5eb87163139fa0a8a5"},"schema_version":"1.0"},"canonical_sha256":"25e275085f2b1af8bcc82fd20d36709e77bdebed7d4b31fcd41719cc8ffdfa52","source":{"kind":"arxiv","id":"1712.02892","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.02892","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1712.02892v2","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.02892","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"EXRHKCC7FMNP","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"EXRHKCC7FMNPRPGI","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"EXRHKCC7","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:EXRHKCC7FMNPRPGIF7JA2NTQTZ","target":"record","payload":{"canonical_record":{"source":{"id":"1712.02892","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-07T23:51:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"06a0bcdf54ee00be22b1acc4eae487d2951313ba55d581447519d05d95d6c526","abstract_canon_sha256":"d210942ed9da460ad1341a9ce92db5de94c2f36de4bb2e5eb87163139fa0a8a5"},"schema_version":"1.0"},"canonical_sha256":"25e275085f2b1af8bcc82fd20d36709e77bdebed7d4b31fcd41719cc8ffdfa52","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:56.323937Z","signature_b64":"tAyFpFThBPIhhmMcHUcnBhFMs2yZ4fDkEB9bU+mLuFPugKekqZofbVyunpsWonI78cG20vh1/hvA/snXf6ibBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"25e275085f2b1af8bcc82fd20d36709e77bdebed7d4b31fcd41719cc8ffdfa52","last_reissued_at":"2026-05-18T00:06:56.323429Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:56.323429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.02892","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgtSb4T0EJXudw6HaKs5kwxfstcwiV+kTP0xDTJnTLkxor0l4OjnIx8LTg7UEDND35kDhJlE/pICsMJFI7LoBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:27:34.784303Z"},"content_sha256":"419ca44c196edf4b40426f9bbfb09b814b74eaeac0ac9c93db0f84d2ebeb3a34","schema_version":"1.0","event_id":"sha256:419ca44c196edf4b40426f9bbfb09b814b74eaeac0ac9c93db0f84d2ebeb3a34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:EXRHKCC7FMNPRPGIF7JA2NTQTZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gouy Phase Radial Mode Sorter for Light: Concepts and Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Anton Zeilinger, Manuel Erhard, Mario Krenn, Xuemei Gu","submitted_at":"2017-12-07T23:51:53Z","abstract_excerpt":"We present an in principle lossless sorter for radial modes of light, using accumulated Gouy phases. The experimental setups have been found by a computer algorithm, and can be intuitively understood in a geometric way. Together with the ability to sort angular-momentum modes, we now have access to the complete 2-dimensional transverse plane of light. The device can readily be used in multiplexing classical information. On a quantum level, it is an analog of the Stern-Gerlach experiment -- significant for the discussion of fundamental concepts in quantum physics. As such, it can be applied in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.02892","kind":"arxiv","version":2},"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":"2026-05-18T00:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R6yk0CaboxhMb+t0B8hSptSCPXOPjnv4NT0Htq+ZlWCyEs3OniEyvu1WOP4EHiKmZKHC1VGSu+XahNEOZNCuBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:27:34.784917Z"},"content_sha256":"45cfacda23e0dd3f34af095f5e112ef7a4e5082fafabc925e7087f391df32bf1","schema_version":"1.0","event_id":"sha256:45cfacda23e0dd3f34af095f5e112ef7a4e5082fafabc925e7087f391df32bf1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/bundle.json","state_url":"https://pith.science/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/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":"2026-06-07T14:27:34Z","links":{"resolver":"https://pith.science/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ","bundle":"https://pith.science/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/bundle.json","state":"https://pith.science/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EXRHKCC7FMNPRPGIF7JA2NTQTZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:EXRHKCC7FMNPRPGIF7JA2NTQTZ","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":"d210942ed9da460ad1341a9ce92db5de94c2f36de4bb2e5eb87163139fa0a8a5","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-07T23:51:53Z","title_canon_sha256":"06a0bcdf54ee00be22b1acc4eae487d2951313ba55d581447519d05d95d6c526"},"schema_version":"1.0","source":{"id":"1712.02892","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.02892","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1712.02892v2","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.02892","created_at":"2026-05-18T00:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"EXRHKCC7FMNP","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"EXRHKCC7FMNPRPGI","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"EXRHKCC7","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:45cfacda23e0dd3f34af095f5e112ef7a4e5082fafabc925e7087f391df32bf1","target":"graph","created_at":"2026-05-18T00:06:56Z","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 present an in principle lossless sorter for radial modes of light, using accumulated Gouy phases. The experimental setups have been found by a computer algorithm, and can be intuitively understood in a geometric way. Together with the ability to sort angular-momentum modes, we now have access to the complete 2-dimensional transverse plane of light. The device can readily be used in multiplexing classical information. On a quantum level, it is an analog of the Stern-Gerlach experiment -- significant for the discussion of fundamental concepts in quantum physics. As such, it can be applied in ","authors_text":"Anton Zeilinger, Manuel Erhard, Mario Krenn, Xuemei Gu","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-07T23:51:53Z","title":"Gouy Phase Radial Mode Sorter for Light: Concepts and Experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.02892","kind":"arxiv","version":2},"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":"sha256:419ca44c196edf4b40426f9bbfb09b814b74eaeac0ac9c93db0f84d2ebeb3a34","target":"record","created_at":"2026-05-18T00:06:56Z","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":"d210942ed9da460ad1341a9ce92db5de94c2f36de4bb2e5eb87163139fa0a8a5","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-07T23:51:53Z","title_canon_sha256":"06a0bcdf54ee00be22b1acc4eae487d2951313ba55d581447519d05d95d6c526"},"schema_version":"1.0","source":{"id":"1712.02892","kind":"arxiv","version":2}},"canonical_sha256":"25e275085f2b1af8bcc82fd20d36709e77bdebed7d4b31fcd41719cc8ffdfa52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"25e275085f2b1af8bcc82fd20d36709e77bdebed7d4b31fcd41719cc8ffdfa52","first_computed_at":"2026-05-18T00:06:56.323429Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:56.323429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tAyFpFThBPIhhmMcHUcnBhFMs2yZ4fDkEB9bU+mLuFPugKekqZofbVyunpsWonI78cG20vh1/hvA/snXf6ibBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:56.323937Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.02892","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:419ca44c196edf4b40426f9bbfb09b814b74eaeac0ac9c93db0f84d2ebeb3a34","sha256:45cfacda23e0dd3f34af095f5e112ef7a4e5082fafabc925e7087f391df32bf1"],"state_sha256":"90baec04054af34e4e5ed1b89be6a71e47d23d1b28739752c2db8ddf0d361e4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aIomHrY0RE8o1zNwSCGmj14kH1P/c9VQboIbdWrFWjSIrDuFc6hvz+D6ijB5trcdXGWbF6TitGC4RAst7jonBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T14:27:34.788467Z","bundle_sha256":"27a37f22340f48e7f6b0a8c1339b345e8bdc991448ae286b9791575ce903ff19"}}