{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ILBSHPZZXPNROD6KBCVIMUGZWE","short_pith_number":"pith:ILBSHPZZ","canonical_record":{"source":{"id":"1806.01201","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:43:10Z","cross_cats_sorted":[],"title_canon_sha256":"72e553d1d596505980f3ae54400421afbeba5861c54a5f299a4ca756b7e141d5","abstract_canon_sha256":"0d2bb3e5084fa70210d43bbbf86c964f2c1a95da918d9268f1a608927e58ff17"},"schema_version":"1.0"},"canonical_sha256":"42c323bf39bbdb170fca08aa8650d9b13d647e5ac80905012c521514652ef860","source":{"kind":"arxiv","id":"1806.01201","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01201","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01201v2","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01201","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"ILBSHPZZXPNR","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"ILBSHPZZXPNROD6K","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"ILBSHPZZ","created_at":"2026-07-05T02:01:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ILBSHPZZXPNROD6KBCVIMUGZWE","target":"record","payload":{"canonical_record":{"source":{"id":"1806.01201","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:43:10Z","cross_cats_sorted":[],"title_canon_sha256":"72e553d1d596505980f3ae54400421afbeba5861c54a5f299a4ca756b7e141d5","abstract_canon_sha256":"0d2bb3e5084fa70210d43bbbf86c964f2c1a95da918d9268f1a608927e58ff17"},"schema_version":"1.0"},"canonical_sha256":"42c323bf39bbdb170fca08aa8650d9b13d647e5ac80905012c521514652ef860","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:01:59.232132Z","signature_b64":"/5Q2bKoO/4OIZCFsRQ4xwtCojpJD6QQ0C0s3Jq9O6vB41tAf2IokjEh/mpHil11WMzpr+p97Od5/1tdyV0bOBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42c323bf39bbdb170fca08aa8650d9b13d647e5ac80905012c521514652ef860","last_reissued_at":"2026-07-05T02:01:59.231773Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:01:59.231773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.01201","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":"2026-07-05T02:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B/D4kdwgcj0nr6f6cyaInXAni6l5cCBq1urMxbPQV2aBWa3iQIUV1N4yDbytCLLinSMgq+YFIpkV6dh9JYWFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T01:28:24.502165Z"},"content_sha256":"da58e8adc764cb0a8b9d745c58eb1ada9992ec0be22bb54546183a98d7ecd40e","schema_version":"1.0","event_id":"sha256:da58e8adc764cb0a8b9d745c58eb1ada9992ec0be22bb54546183a98d7ecd40e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ILBSHPZZXPNROD6KBCVIMUGZWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Swapping Intra-photon entanglement to Inter-photon entanglement using linear optical devices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Abhishek Ghosh, A. K. Pan, Asmita Kumari, Mohit Lal Bera","submitted_at":"2018-06-04T16:43:10Z","abstract_excerpt":"We propose a curious protocol for swapping the intra-photon entanglement between path and polarization degrees of freedom of a single photon to inter-photon entanglement between two spatially separated photons which have never interacted. This is accomplished by using an experimental setup consisting of three suitable Mach-Zehnder interferometers along with number of beam splitters, polarization rotators and detectors. Using the same setup, we have also demonstrated an interesting quantum state transfer protocol, symmetric between Alice and Bob. Importantly, the Bell-basis discrimination is no"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01201","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1806.01201/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":"2026-07-05T02:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dEjIH57UL6DvKccftxo6yaHXA5igjfzF1jfCYVsyiBMbYuiYRoNoHDjoTYEpuMOj95bsGtb+vcwM/rV48jPgCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T01:28:24.502556Z"},"content_sha256":"c712d36001b4ae018b774db5da97d66c2f0240fa318f474176542804b3ca5814","schema_version":"1.0","event_id":"sha256:c712d36001b4ae018b774db5da97d66c2f0240fa318f474176542804b3ca5814"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/bundle.json","state_url":"https://pith.science/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/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":"2026-07-16T01:28:24Z","links":{"resolver":"https://pith.science/pith/ILBSHPZZXPNROD6KBCVIMUGZWE","bundle":"https://pith.science/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/bundle.json","state":"https://pith.science/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ILBSHPZZXPNROD6KBCVIMUGZWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ILBSHPZZXPNROD6KBCVIMUGZWE","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":"0d2bb3e5084fa70210d43bbbf86c964f2c1a95da918d9268f1a608927e58ff17","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:43:10Z","title_canon_sha256":"72e553d1d596505980f3ae54400421afbeba5861c54a5f299a4ca756b7e141d5"},"schema_version":"1.0","source":{"id":"1806.01201","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01201","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01201v2","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01201","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"ILBSHPZZXPNR","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"ILBSHPZZXPNROD6K","created_at":"2026-07-05T02:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"ILBSHPZZ","created_at":"2026-07-05T02:01:59Z"}],"graph_snapshots":[{"event_id":"sha256:c712d36001b4ae018b774db5da97d66c2f0240fa318f474176542804b3ca5814","target":"graph","created_at":"2026-07-05T02:01:59Z","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/1806.01201/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a curious protocol for swapping the intra-photon entanglement between path and polarization degrees of freedom of a single photon to inter-photon entanglement between two spatially separated photons which have never interacted. This is accomplished by using an experimental setup consisting of three suitable Mach-Zehnder interferometers along with number of beam splitters, polarization rotators and detectors. Using the same setup, we have also demonstrated an interesting quantum state transfer protocol, symmetric between Alice and Bob. Importantly, the Bell-basis discrimination is no","authors_text":"Abhishek Ghosh, A. K. Pan, Asmita Kumari, Mohit Lal Bera","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:43:10Z","title":"Swapping Intra-photon entanglement to Inter-photon entanglement using linear optical devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01201","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:da58e8adc764cb0a8b9d745c58eb1ada9992ec0be22bb54546183a98d7ecd40e","target":"record","created_at":"2026-07-05T02:01:59Z","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":"0d2bb3e5084fa70210d43bbbf86c964f2c1a95da918d9268f1a608927e58ff17","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-06-04T16:43:10Z","title_canon_sha256":"72e553d1d596505980f3ae54400421afbeba5861c54a5f299a4ca756b7e141d5"},"schema_version":"1.0","source":{"id":"1806.01201","kind":"arxiv","version":2}},"canonical_sha256":"42c323bf39bbdb170fca08aa8650d9b13d647e5ac80905012c521514652ef860","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42c323bf39bbdb170fca08aa8650d9b13d647e5ac80905012c521514652ef860","first_computed_at":"2026-07-05T02:01:59.231773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:01:59.231773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/5Q2bKoO/4OIZCFsRQ4xwtCojpJD6QQ0C0s3Jq9O6vB41tAf2IokjEh/mpHil11WMzpr+p97Od5/1tdyV0bOBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:01:59.232132Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01201","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da58e8adc764cb0a8b9d745c58eb1ada9992ec0be22bb54546183a98d7ecd40e","sha256:c712d36001b4ae018b774db5da97d66c2f0240fa318f474176542804b3ca5814"],"state_sha256":"1ebf9ce4887c98cbdfdde16c7d1dd597a582666200c806d2bc2b3904547bfdaf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LMRmwoGjSL/CEPqZDAAjasvyMFJ/efLoF3X+Qwsm4tSb5hLANZjIRtUAmV+JyzZEixgsCj6HPsipuKJJbKShAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-16T01:28:24.504777Z","bundle_sha256":"d843672efa93de4371381f68c408f29bed871749593724c7a3520466fe19fbb1"}}