{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EQTLI25P7STHKOAHOIY74RYSU2","short_pith_number":"pith:EQTLI25P","canonical_record":{"source":{"id":"1612.03405","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-11T12:27:40Z","cross_cats_sorted":[],"title_canon_sha256":"4bd6ebc8e9dc3837d20ae788cd885180a36809387e41c6b889333a1136a4b2ea","abstract_canon_sha256":"37c3826398035cbfab7de090982b67220197ecef73d0822caed3d9e515700f25"},"schema_version":"1.0"},"canonical_sha256":"2426b46baffca67538077231fe4712a6a52a2cb5ad186209e052d11aaab80695","source":{"kind":"arxiv","id":"1612.03405","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03405","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03405v3","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03405","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"EQTLI25P7STH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EQTLI25P7STHKOAH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EQTLI25P","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EQTLI25P7STHKOAHOIY74RYSU2","target":"record","payload":{"canonical_record":{"source":{"id":"1612.03405","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-11T12:27:40Z","cross_cats_sorted":[],"title_canon_sha256":"4bd6ebc8e9dc3837d20ae788cd885180a36809387e41c6b889333a1136a4b2ea","abstract_canon_sha256":"37c3826398035cbfab7de090982b67220197ecef73d0822caed3d9e515700f25"},"schema_version":"1.0"},"canonical_sha256":"2426b46baffca67538077231fe4712a6a52a2cb5ad186209e052d11aaab80695","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:05.630106Z","signature_b64":"8NSd0Fva1FScsfkXG9SsaswqSNvfpVj690NXNjSWJeRYc2fpNMul2/Rv3m5BesCZixyjZlgAyto5V1G8KoFEBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2426b46baffca67538077231fe4712a6a52a2cb5ad186209e052d11aaab80695","last_reissued_at":"2026-05-17T23:58:05.628913Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:05.628913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.03405","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"if2PmCCTgedp5OBWdM7aFw5cw25wC+10qZzCLsDcILzlD4AWnvLNYRaVIm4hUP/FtfPKEI58IWJnjabvEniHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:47:49.287594Z"},"content_sha256":"6c77b5b0227bdbd6470479ce8cb75fa0a95b60000fb4574816b277c583eb95d3","schema_version":"1.0","event_id":"sha256:6c77b5b0227bdbd6470479ce8cb75fa0a95b60000fb4574816b277c583eb95d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EQTLI25P7STHKOAHOIY74RYSU2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maximal Entanglement and Teleportation using an Arthurs-Kelly type Interaction for Qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"S. M. Roy, Subhayan Sahu","submitted_at":"2016-12-11T12:27:40Z","abstract_excerpt":"We study entanglement generation between a system qubit and three apparatus qubits using an exactly solvable Arthurs-Kelly type model. We demonstrate the possibility of generating an EPR-like maximally entangled system-apparatus state, in which the second qubit of the usual EPR state is replaced by a three qubit state. We design a very simple protocol to transfer the unknown state of the system onto one of the apparatus qubits which can then be sent elsewhere via a quantum channel. This protocol can be seen as an alternative teleportation scheme."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03405","kind":"arxiv","version":3},"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":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8pGALEEHuuHTNPDAkhSDAcr4eDPMAgTvOOKDaZuF3+f2x6uxn2sA10+k15Jg1q18iGtr39LTmUBypy6wW8AxBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:47:49.288259Z"},"content_sha256":"8c6932693617c14d27a498e252e8745dd41a5b8aefa003d0c90a1cedf8b11068","schema_version":"1.0","event_id":"sha256:8c6932693617c14d27a498e252e8745dd41a5b8aefa003d0c90a1cedf8b11068"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EQTLI25P7STHKOAHOIY74RYSU2/bundle.json","state_url":"https://pith.science/pith/EQTLI25P7STHKOAHOIY74RYSU2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EQTLI25P7STHKOAHOIY74RYSU2/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":"2026-05-25T20:47:49Z","links":{"resolver":"https://pith.science/pith/EQTLI25P7STHKOAHOIY74RYSU2","bundle":"https://pith.science/pith/EQTLI25P7STHKOAHOIY74RYSU2/bundle.json","state":"https://pith.science/pith/EQTLI25P7STHKOAHOIY74RYSU2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EQTLI25P7STHKOAHOIY74RYSU2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EQTLI25P7STHKOAHOIY74RYSU2","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":"37c3826398035cbfab7de090982b67220197ecef73d0822caed3d9e515700f25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-11T12:27:40Z","title_canon_sha256":"4bd6ebc8e9dc3837d20ae788cd885180a36809387e41c6b889333a1136a4b2ea"},"schema_version":"1.0","source":{"id":"1612.03405","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03405","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03405v3","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03405","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"EQTLI25P7STH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EQTLI25P7STHKOAH","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EQTLI25P","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:8c6932693617c14d27a498e252e8745dd41a5b8aefa003d0c90a1cedf8b11068","target":"graph","created_at":"2026-05-17T23:58:05Z","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 entanglement generation between a system qubit and three apparatus qubits using an exactly solvable Arthurs-Kelly type model. We demonstrate the possibility of generating an EPR-like maximally entangled system-apparatus state, in which the second qubit of the usual EPR state is replaced by a three qubit state. We design a very simple protocol to transfer the unknown state of the system onto one of the apparatus qubits which can then be sent elsewhere via a quantum channel. This protocol can be seen as an alternative teleportation scheme.","authors_text":"S. M. Roy, Subhayan Sahu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-11T12:27:40Z","title":"Maximal Entanglement and Teleportation using an Arthurs-Kelly type Interaction for Qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03405","kind":"arxiv","version":3},"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":"sha256:6c77b5b0227bdbd6470479ce8cb75fa0a95b60000fb4574816b277c583eb95d3","target":"record","created_at":"2026-05-17T23:58:05Z","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":"37c3826398035cbfab7de090982b67220197ecef73d0822caed3d9e515700f25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-11T12:27:40Z","title_canon_sha256":"4bd6ebc8e9dc3837d20ae788cd885180a36809387e41c6b889333a1136a4b2ea"},"schema_version":"1.0","source":{"id":"1612.03405","kind":"arxiv","version":3}},"canonical_sha256":"2426b46baffca67538077231fe4712a6a52a2cb5ad186209e052d11aaab80695","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2426b46baffca67538077231fe4712a6a52a2cb5ad186209e052d11aaab80695","first_computed_at":"2026-05-17T23:58:05.628913Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:05.628913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8NSd0Fva1FScsfkXG9SsaswqSNvfpVj690NXNjSWJeRYc2fpNMul2/Rv3m5BesCZixyjZlgAyto5V1G8KoFEBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:05.630106Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03405","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c77b5b0227bdbd6470479ce8cb75fa0a95b60000fb4574816b277c583eb95d3","sha256:8c6932693617c14d27a498e252e8745dd41a5b8aefa003d0c90a1cedf8b11068"],"state_sha256":"6e3c6acab45e3b21a821f5a67fc74b9afc55382288f7b632ac5bbd1a4eaa6337"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xcpJUHmiVDbHsvtht+NHnXtFLRaQUBINXscjCfHEkpLjPVbRsOhPiOY8K0zy4BoxZJGgBpOkFrxpGdhR5tG/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:47:49.291599Z","bundle_sha256":"350ab942f3718752385c02bc46ee107c603578eda02b4400bb453f03bf604a69"}}