{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PHXBAD7BVAMU4UYNJW427N53L2","short_pith_number":"pith:PHXBAD7B","canonical_record":{"source":{"id":"1112.0461","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-12-02T13:44:54Z","cross_cats_sorted":[],"title_canon_sha256":"027ae25e61d7eddadc37e8b9043df6c92b47ae191c4d24fd4aea9db1cd47ae0f","abstract_canon_sha256":"70933f57f23554db63047bc27f818d5e7caf67107209c6edef900e7daa06b4e3"},"schema_version":"1.0"},"canonical_sha256":"79ee100fe1a8194e530d4db9afb7bb5e8efa64c2a85b91ea8709d62e9f7b1b48","source":{"kind":"arxiv","id":"1112.0461","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0461","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0461v3","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0461","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"PHXBAD7BVAMU","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PHXBAD7BVAMU4UYN","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PHXBAD7B","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PHXBAD7BVAMU4UYNJW427N53L2","target":"record","payload":{"canonical_record":{"source":{"id":"1112.0461","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-12-02T13:44:54Z","cross_cats_sorted":[],"title_canon_sha256":"027ae25e61d7eddadc37e8b9043df6c92b47ae191c4d24fd4aea9db1cd47ae0f","abstract_canon_sha256":"70933f57f23554db63047bc27f818d5e7caf67107209c6edef900e7daa06b4e3"},"schema_version":"1.0"},"canonical_sha256":"79ee100fe1a8194e530d4db9afb7bb5e8efa64c2a85b91ea8709d62e9f7b1b48","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:54.382841Z","signature_b64":"la0trpLvjg7M5n+L3lTQQOVSL5mPtjDJMBMadcQ/9KW7F9N6u3TNKTjYtH4mzoBpwerWh1ujoHBHePjtehQRDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79ee100fe1a8194e530d4db9afb7bb5e8efa64c2a85b91ea8709d62e9f7b1b48","last_reissued_at":"2026-05-18T03:31:54.382065Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:54.382065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.0461","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":"2026-05-18T03:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CXzJ9GiYq9O0Z1hpGKrFxL8GFkoHYtFGcqmjKiJms81LzoJHOIJvCUHbZjtPQDmzDKTaToiNNsn8uQpuA0Z/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:16:41.128891Z"},"content_sha256":"9534f0523ed8cb68e66ec85e1024b227046acea8e7f8a8e3d6b362698d36c84e","schema_version":"1.0","event_id":"sha256:9534f0523ed8cb68e66ec85e1024b227046acea8e7f8a8e3d6b362698d36c84e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PHXBAD7BVAMU4UYNJW427N53L2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong Einstein-Podolsky-Rosen steering with unconditional entangled states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"J\\\"oran Bauchrowitz, Roman Schnabel, Sebastian Steinlechner, Tobias Eberle","submitted_at":"2011-12-02T13:44:54Z","abstract_excerpt":"In 1935 Schr\\\"odinger introduced the terms entanglement and steering in the context of the famous gedanken experiment discussed by Einstein, Podolsky, and Rosen (EPR). Here, we report on a sixfold increase of the observed EPR-steering effect as quantified by the Reid-criterion. We achieved an unprecedented low conditional variance product of about 0.04 < 1, where 1 is the upper bound below which steering is present. The steering effect was observed on an unconditional two-mode-squeezed entangled state that contained a total vacuum state contribution of less than 8%, including detection imperfe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0461","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":"2026-05-18T03:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IwZzwOc+sYMvWMJ5UYXls9pim2K5e5hvKhP4mEsfUWVMf8jyE1Z6KWLkXsQk+RznCoRWWXBnP9SZHcjAkN5pBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:16:41.129244Z"},"content_sha256":"51e8a5669a6d6b6a2360804c0e360477be60cf645e48316749d8c6a810d18231","schema_version":"1.0","event_id":"sha256:51e8a5669a6d6b6a2360804c0e360477be60cf645e48316749d8c6a810d18231"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PHXBAD7BVAMU4UYNJW427N53L2/bundle.json","state_url":"https://pith.science/pith/PHXBAD7BVAMU4UYNJW427N53L2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PHXBAD7BVAMU4UYNJW427N53L2/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":"2026-05-28T06:16:41Z","links":{"resolver":"https://pith.science/pith/PHXBAD7BVAMU4UYNJW427N53L2","bundle":"https://pith.science/pith/PHXBAD7BVAMU4UYNJW427N53L2/bundle.json","state":"https://pith.science/pith/PHXBAD7BVAMU4UYNJW427N53L2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PHXBAD7BVAMU4UYNJW427N53L2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PHXBAD7BVAMU4UYNJW427N53L2","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":"70933f57f23554db63047bc27f818d5e7caf67107209c6edef900e7daa06b4e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-12-02T13:44:54Z","title_canon_sha256":"027ae25e61d7eddadc37e8b9043df6c92b47ae191c4d24fd4aea9db1cd47ae0f"},"schema_version":"1.0","source":{"id":"1112.0461","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0461","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0461v3","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0461","created_at":"2026-05-18T03:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"PHXBAD7BVAMU","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PHXBAD7BVAMU4UYN","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PHXBAD7B","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:51e8a5669a6d6b6a2360804c0e360477be60cf645e48316749d8c6a810d18231","target":"graph","created_at":"2026-05-18T03:31:54Z","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":"In 1935 Schr\\\"odinger introduced the terms entanglement and steering in the context of the famous gedanken experiment discussed by Einstein, Podolsky, and Rosen (EPR). Here, we report on a sixfold increase of the observed EPR-steering effect as quantified by the Reid-criterion. We achieved an unprecedented low conditional variance product of about 0.04 < 1, where 1 is the upper bound below which steering is present. The steering effect was observed on an unconditional two-mode-squeezed entangled state that contained a total vacuum state contribution of less than 8%, including detection imperfe","authors_text":"J\\\"oran Bauchrowitz, Roman Schnabel, Sebastian Steinlechner, Tobias Eberle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-12-02T13:44:54Z","title":"Strong Einstein-Podolsky-Rosen steering with unconditional entangled states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0461","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":"sha256:9534f0523ed8cb68e66ec85e1024b227046acea8e7f8a8e3d6b362698d36c84e","target":"record","created_at":"2026-05-18T03:31:54Z","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":"70933f57f23554db63047bc27f818d5e7caf67107209c6edef900e7daa06b4e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-12-02T13:44:54Z","title_canon_sha256":"027ae25e61d7eddadc37e8b9043df6c92b47ae191c4d24fd4aea9db1cd47ae0f"},"schema_version":"1.0","source":{"id":"1112.0461","kind":"arxiv","version":3}},"canonical_sha256":"79ee100fe1a8194e530d4db9afb7bb5e8efa64c2a85b91ea8709d62e9f7b1b48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79ee100fe1a8194e530d4db9afb7bb5e8efa64c2a85b91ea8709d62e9f7b1b48","first_computed_at":"2026-05-18T03:31:54.382065Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:54.382065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"la0trpLvjg7M5n+L3lTQQOVSL5mPtjDJMBMadcQ/9KW7F9N6u3TNKTjYtH4mzoBpwerWh1ujoHBHePjtehQRDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:54.382841Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.0461","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9534f0523ed8cb68e66ec85e1024b227046acea8e7f8a8e3d6b362698d36c84e","sha256:51e8a5669a6d6b6a2360804c0e360477be60cf645e48316749d8c6a810d18231"],"state_sha256":"6a36ddd45836df3f56ca7d1ed709562861066455dc7051aebda3364f9080b092"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p2jmw7aHX03SLCOLUP9Z1iYfJXJ8th2bpGtrlO2PoazcS5WlDgJQ+jLKlXULBdkCyjTcWeLEMf3BxGKbwV0bCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:16:41.131370Z","bundle_sha256":"4fbd339e5999445f659e9460607412cac8777e8537fc293b35c761c54390fd60"}}