{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:XBLDR6CCEHB7WTZNCXIZJPAKA2","short_pith_number":"pith:XBLDR6CC","canonical_record":{"source":{"id":"1607.05195","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-18T17:12:36Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"89ade64d6c32bed3c0016da75af332455ec40caf81e61e0636a74b3543b81548","abstract_canon_sha256":"d752bcae84197fb953b5df88f529ca6ef5bbafaa2d8063bf6f31d923407189bf"},"schema_version":"1.0"},"canonical_sha256":"b85638f84221c3fb4f2d15d194bc0a068021cd26aea0ad54a0a72517495447ec","source":{"kind":"arxiv","id":"1607.05195","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.05195","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"1607.05195v2","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.05195","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"XBLDR6CCEHB7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XBLDR6CCEHB7WTZN","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XBLDR6CC","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:XBLDR6CCEHB7WTZNCXIZJPAKA2","target":"record","payload":{"canonical_record":{"source":{"id":"1607.05195","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-18T17:12:36Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"89ade64d6c32bed3c0016da75af332455ec40caf81e61e0636a74b3543b81548","abstract_canon_sha256":"d752bcae84197fb953b5df88f529ca6ef5bbafaa2d8063bf6f31d923407189bf"},"schema_version":"1.0"},"canonical_sha256":"b85638f84221c3fb4f2d15d194bc0a068021cd26aea0ad54a0a72517495447ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:19.251751Z","signature_b64":"oMlpESN4okV4NCybK75jJoTXrOCLrhcSsvM+JjlKhWPPgAffHGXUgUr2U1OKbhR2Y62iJ3I+FDRs92ZOENG7Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b85638f84221c3fb4f2d15d194bc0a068021cd26aea0ad54a0a72517495447ec","last_reissued_at":"2026-05-18T00:11:19.251025Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:19.251025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.05195","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":"2026-05-18T00:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qby+WKkYi3vRPyZA5gwFjOaxXm7qxQ8jZum0VgJtjZrQosXxaN/yqMolvHOahwtB1A9dONPYb0JXUSKqcosuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:36:30.850942Z"},"content_sha256":"5489927d0a36f0ca834de2267d15c141dad1737eea7a54e7a8f53bb03b0d53cd","schema_version":"1.0","event_id":"sha256:5489927d0a36f0ca834de2267d15c141dad1737eea7a54e7a8f53bb03b0d53cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:XBLDR6CCEHB7WTZNCXIZJPAKA2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Response to defects in multi- and bipartite entanglement of isotropic quantum spin networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"quant-ph","authors_text":"Aditi Sen De, Debraj Rakshit, Himadri Shekhar Dhar, Sudipto Singha Roy, Ujjwal Sen","submitted_at":"2016-07-18T17:12:36Z","abstract_excerpt":"Quantum networks are an integral component in performing efficient computation and communication tasks that are not accessible using classical systems. A key aspect in designing an effective and scalable quantum network is generating entanglement between its nodes, which is robust against defects in the network. We consider an isotropic quantum network of spin-1/2 particles with a finite fraction of defects, where the corresponding wave function of the network is rotationally invariant under the action of local unitaries, and we show that any reduced density matrix also remains unaltered under"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.05195","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":"2026-05-18T00:11:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X8oKM9JNlD25D0fN9FyNtyWBDimQ1yA09aA46MJcUsdFXYellx6t+lQ034Yc0AUsYuMDHstWZxd0YU/NwEsOBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:36:30.851690Z"},"content_sha256":"09d943f355f70289c00a12592c577332062224968eab26a319101097790274db","schema_version":"1.0","event_id":"sha256:09d943f355f70289c00a12592c577332062224968eab26a319101097790274db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/bundle.json","state_url":"https://pith.science/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/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":"2026-06-09T07:36:30Z","links":{"resolver":"https://pith.science/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2","bundle":"https://pith.science/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/bundle.json","state":"https://pith.science/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XBLDR6CCEHB7WTZNCXIZJPAKA2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XBLDR6CCEHB7WTZNCXIZJPAKA2","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":"d752bcae84197fb953b5df88f529ca6ef5bbafaa2d8063bf6f31d923407189bf","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-18T17:12:36Z","title_canon_sha256":"89ade64d6c32bed3c0016da75af332455ec40caf81e61e0636a74b3543b81548"},"schema_version":"1.0","source":{"id":"1607.05195","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.05195","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"arxiv_version","alias_value":"1607.05195v2","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.05195","created_at":"2026-05-18T00:11:19Z"},{"alias_kind":"pith_short_12","alias_value":"XBLDR6CCEHB7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XBLDR6CCEHB7WTZN","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XBLDR6CC","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:09d943f355f70289c00a12592c577332062224968eab26a319101097790274db","target":"graph","created_at":"2026-05-18T00:11:19Z","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":"Quantum networks are an integral component in performing efficient computation and communication tasks that are not accessible using classical systems. A key aspect in designing an effective and scalable quantum network is generating entanglement between its nodes, which is robust against defects in the network. We consider an isotropic quantum network of spin-1/2 particles with a finite fraction of defects, where the corresponding wave function of the network is rotationally invariant under the action of local unitaries, and we show that any reduced density matrix also remains unaltered under","authors_text":"Aditi Sen De, Debraj Rakshit, Himadri Shekhar Dhar, Sudipto Singha Roy, Ujjwal Sen","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-18T17:12:36Z","title":"Response to defects in multi- and bipartite entanglement of isotropic quantum spin networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.05195","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":"sha256:5489927d0a36f0ca834de2267d15c141dad1737eea7a54e7a8f53bb03b0d53cd","target":"record","created_at":"2026-05-18T00:11:19Z","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":"d752bcae84197fb953b5df88f529ca6ef5bbafaa2d8063bf6f31d923407189bf","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-18T17:12:36Z","title_canon_sha256":"89ade64d6c32bed3c0016da75af332455ec40caf81e61e0636a74b3543b81548"},"schema_version":"1.0","source":{"id":"1607.05195","kind":"arxiv","version":2}},"canonical_sha256":"b85638f84221c3fb4f2d15d194bc0a068021cd26aea0ad54a0a72517495447ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b85638f84221c3fb4f2d15d194bc0a068021cd26aea0ad54a0a72517495447ec","first_computed_at":"2026-05-18T00:11:19.251025Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:19.251025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oMlpESN4okV4NCybK75jJoTXrOCLrhcSsvM+JjlKhWPPgAffHGXUgUr2U1OKbhR2Y62iJ3I+FDRs92ZOENG7Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:19.251751Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.05195","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5489927d0a36f0ca834de2267d15c141dad1737eea7a54e7a8f53bb03b0d53cd","sha256:09d943f355f70289c00a12592c577332062224968eab26a319101097790274db"],"state_sha256":"7d2402f4324516cd458a9d86524eec786c26cfeb2047a60c2217f919d2407f54"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uQ8Z45MinbvIX2t24QMimfZKiJTmNVUIuPxhtvoxa6p6pLTcaM4QH595VwByn3o38x3j+HxTwtOi+nVBCUg2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T07:36:30.855551Z","bundle_sha256":"80fd788f21c36f1af86c3b9e00e76746cb996dbf29f455d7c2967fbba79af915"}}