{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MBS2XZ64ZMLLY3NEJSCVRXNR67","short_pith_number":"pith:MBS2XZ64","canonical_record":{"source":{"id":"1305.0633","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-05-03T08:05:26Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e2f1ac5b8e88aa4fb6ee691a6af9f180cbc39031dc4de4b7802b38a73f730fbe","abstract_canon_sha256":"2bae3a32e48fe88573e568b10045c4cabd67b00cf096c865106c597d2f107c21"},"schema_version":"1.0"},"canonical_sha256":"6065abe7dccb16bc6da44c8558ddb1f7dce2e8044b128d5872a91c0df72d1b89","source":{"kind":"arxiv","id":"1305.0633","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.0633","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"arxiv_version","alias_value":"1305.0633v1","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0633","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"pith_short_12","alias_value":"MBS2XZ64ZMLL","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"MBS2XZ64ZMLLY3NE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"MBS2XZ64","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MBS2XZ64ZMLLY3NEJSCVRXNR67","target":"record","payload":{"canonical_record":{"source":{"id":"1305.0633","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-05-03T08:05:26Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e2f1ac5b8e88aa4fb6ee691a6af9f180cbc39031dc4de4b7802b38a73f730fbe","abstract_canon_sha256":"2bae3a32e48fe88573e568b10045c4cabd67b00cf096c865106c597d2f107c21"},"schema_version":"1.0"},"canonical_sha256":"6065abe7dccb16bc6da44c8558ddb1f7dce2e8044b128d5872a91c0df72d1b89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:12.887790Z","signature_b64":"WTEMElG2PB3sLK9BJH4PKgbvlJSIg258F3GCElrxBY7smzHnta+fo3nf/RqhWiIHaJ3Edr2Dd3o8f01GsWG4CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6065abe7dccb16bc6da44c8558ddb1f7dce2e8044b128d5872a91c0df72d1b89","last_reissued_at":"2026-05-18T01:50:12.887083Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:12.887083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.0633","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":"2026-05-18T01:50:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7spM4+omG5Ra3hAxqwHwOfn14OPuR9CtI3WB7YgW9tEmF2+cKFtz+gv7chCa9nGtzddw4ACr94mwP4Luf3roCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:31:40.261762Z"},"content_sha256":"b1dbf9760502944bff3645c129adda502c9eaed615f55f3f7f15df291beb17b9","schema_version":"1.0","event_id":"sha256:b1dbf9760502944bff3645c129adda502c9eaed615f55f3f7f15df291beb17b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MBS2XZ64ZMLLY3NEJSCVRXNR67","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving Polarisation Squeezing In Sagnac Interferometer Configuration Using Photonic Crystal Fibre","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Joel F. Corney, Morgan J. Tacey","submitted_at":"2013-05-03T08:05:26Z","abstract_excerpt":"The greater confinement of light that is possible in photonic crystal fibres leads to a greater effective nonlin- earity, which promises to yield greater quantum squeezing than is possible in standard optical fibre. However, experimental work to date has not achieved improvements over standard fibre. We present a comprehensive numerical investigation of polarisation squeezing in photonic crystal fibre in a Sagnac configuration. By including loss, a non-instantaneous Raman response, excess phase-noise, second- and third-order dispersion and self-steepening, the simulations are able to identify "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0633","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":"2026-05-18T01:50:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fXv7rUEI67gMOD6rArLwFx2/KgVSSdoz9yzfpgd8ZXXONlwZj2RI3ywLdO0HO+wL/6xaWj7bqPYIGO/gajL4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:31:40.262114Z"},"content_sha256":"a1ee0203522f429be916b47cbb2196b8ff3c6f28be6921e58a4901945ad56f67","schema_version":"1.0","event_id":"sha256:a1ee0203522f429be916b47cbb2196b8ff3c6f28be6921e58a4901945ad56f67"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/bundle.json","state_url":"https://pith.science/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/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":"2026-06-04T02:31:40Z","links":{"resolver":"https://pith.science/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67","bundle":"https://pith.science/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/bundle.json","state":"https://pith.science/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MBS2XZ64ZMLLY3NEJSCVRXNR67/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MBS2XZ64ZMLLY3NEJSCVRXNR67","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":"2bae3a32e48fe88573e568b10045c4cabd67b00cf096c865106c597d2f107c21","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-05-03T08:05:26Z","title_canon_sha256":"e2f1ac5b8e88aa4fb6ee691a6af9f180cbc39031dc4de4b7802b38a73f730fbe"},"schema_version":"1.0","source":{"id":"1305.0633","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.0633","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"arxiv_version","alias_value":"1305.0633v1","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0633","created_at":"2026-05-18T01:50:12Z"},{"alias_kind":"pith_short_12","alias_value":"MBS2XZ64ZMLL","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"MBS2XZ64ZMLLY3NE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"MBS2XZ64","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:a1ee0203522f429be916b47cbb2196b8ff3c6f28be6921e58a4901945ad56f67","target":"graph","created_at":"2026-05-18T01:50:12Z","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":"The greater confinement of light that is possible in photonic crystal fibres leads to a greater effective nonlin- earity, which promises to yield greater quantum squeezing than is possible in standard optical fibre. However, experimental work to date has not achieved improvements over standard fibre. We present a comprehensive numerical investigation of polarisation squeezing in photonic crystal fibre in a Sagnac configuration. By including loss, a non-instantaneous Raman response, excess phase-noise, second- and third-order dispersion and self-steepening, the simulations are able to identify ","authors_text":"Joel F. Corney, Morgan J. Tacey","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-05-03T08:05:26Z","title":"Improving Polarisation Squeezing In Sagnac Interferometer Configuration Using Photonic Crystal Fibre"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0633","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:b1dbf9760502944bff3645c129adda502c9eaed615f55f3f7f15df291beb17b9","target":"record","created_at":"2026-05-18T01:50:12Z","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":"2bae3a32e48fe88573e568b10045c4cabd67b00cf096c865106c597d2f107c21","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-05-03T08:05:26Z","title_canon_sha256":"e2f1ac5b8e88aa4fb6ee691a6af9f180cbc39031dc4de4b7802b38a73f730fbe"},"schema_version":"1.0","source":{"id":"1305.0633","kind":"arxiv","version":1}},"canonical_sha256":"6065abe7dccb16bc6da44c8558ddb1f7dce2e8044b128d5872a91c0df72d1b89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6065abe7dccb16bc6da44c8558ddb1f7dce2e8044b128d5872a91c0df72d1b89","first_computed_at":"2026-05-18T01:50:12.887083Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:12.887083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WTEMElG2PB3sLK9BJH4PKgbvlJSIg258F3GCElrxBY7smzHnta+fo3nf/RqhWiIHaJ3Edr2Dd3o8f01GsWG4CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:12.887790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.0633","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1dbf9760502944bff3645c129adda502c9eaed615f55f3f7f15df291beb17b9","sha256:a1ee0203522f429be916b47cbb2196b8ff3c6f28be6921e58a4901945ad56f67"],"state_sha256":"135d7c262c036d366ee5d72959f169be199835865d442e4e2e5c0c625532156c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QER9aqr7x+XHqHyVxLKuPbBK2UFOOwVHP717JYv5mfLatejXw7aAB3Rvs284orgUieQyKq7mss7ata+lbRrxCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T02:31:40.264069Z","bundle_sha256":"c70286c41ba5567f4556b90b07c88edb5552ae20c92bbf1b3917674e67cc2d26"}}