{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:RG4UWF47AY5FDT7E4VSZFWWBJ6","short_pith_number":"pith:RG4UWF47","canonical_record":{"source":{"id":"2104.05627","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T16:49:52Z","cross_cats_sorted":[],"title_canon_sha256":"3f63b839747871f992542a6a543068f206de5b9be4ad52d32f984adb02a2fceb","abstract_canon_sha256":"700d94708b18e2d4301c29afef921f0e902726f78e2c5739619c18405ddf5f02"},"schema_version":"1.0"},"canonical_sha256":"89b94b179f063a51cfe4e56592dac14faddf0830226564c1d7bdb9433205fe8e","source":{"kind":"arxiv","id":"2104.05627","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.05627","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"arxiv_version","alias_value":"2104.05627v3","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05627","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_12","alias_value":"RG4UWF47AY5F","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_16","alias_value":"RG4UWF47AY5FDT7E","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_8","alias_value":"RG4UWF47","created_at":"2026-07-05T03:59:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:RG4UWF47AY5FDT7E4VSZFWWBJ6","target":"record","payload":{"canonical_record":{"source":{"id":"2104.05627","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T16:49:52Z","cross_cats_sorted":[],"title_canon_sha256":"3f63b839747871f992542a6a543068f206de5b9be4ad52d32f984adb02a2fceb","abstract_canon_sha256":"700d94708b18e2d4301c29afef921f0e902726f78e2c5739619c18405ddf5f02"},"schema_version":"1.0"},"canonical_sha256":"89b94b179f063a51cfe4e56592dac14faddf0830226564c1d7bdb9433205fe8e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:59:38.607355Z","signature_b64":"DfAUcrpouxT8YR7mzReDrzFvNs8NXhy7KcVKXsyBBl1sjrMYkbrQWx32DqFhB+towsXaA1UiYLfOKYX+o4XLCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89b94b179f063a51cfe4e56592dac14faddf0830226564c1d7bdb9433205fe8e","last_reissued_at":"2026-07-05T03:59:38.606953Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:59:38.606953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.05627","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":"2026-07-05T03:59:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zucgZYPbsegXmARrR7XgOOpEWSMvFaGmeIYEDCkAh0mbwaAHrdyUH13mtBcCAKsQaqJomQxSye6KHachrBu2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T15:16:18.041850Z"},"content_sha256":"d706d206a165be0d1a2ba8103bf6f585ed92357b03e1731ee10a79e6a3ff3253","schema_version":"1.0","event_id":"sha256:d706d206a165be0d1a2ba8103bf6f585ed92357b03e1731ee10a79e6a3ff3253"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:RG4UWF47AY5FDT7E4VSZFWWBJ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental high-dimensional Greenberger-Horne-Zeilinger entanglement with superconducting transmon qutrits","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Al\\'an Aspuru-Guzik, Alba Cervera-Lierta, Alexey Galda, Mario Krenn","submitted_at":"2021-04-12T16:49:52Z","abstract_excerpt":"Multipartite entanglement is one of the core concepts in quantum information science with broad applications that span from condensed matter physics to quantum physics foundations tests. Although its most studied and tested forms encompass two-dimensional systems, current quantum platforms technically allow the manipulation of additional quantum levels. We report the experimental demonstration and certification of a high-dimensional multipartite entangled state in a superconducting quantum processor. We generate the three-qutrit Greenberger-Horne-Zeilinger state by designing the necessary puls"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05627","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.05627/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":"2026-07-05T03:59:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f23+xEXsQ6FLh04vqH3hi/7LoR6oC4bFehykL/yKPXJvdtrpHZc1yAuzdWw9AP3oPUNWSwCn+9KfET3il5WKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T15:16:18.042471Z"},"content_sha256":"d92ad9ebcc511212a1f22bae24522c2e3bc5fdf717d0d2579252721f29b5c26e","schema_version":"1.0","event_id":"sha256:d92ad9ebcc511212a1f22bae24522c2e3bc5fdf717d0d2579252721f29b5c26e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/bundle.json","state_url":"https://pith.science/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/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":"2026-08-09T15:16:18Z","links":{"resolver":"https://pith.science/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6","bundle":"https://pith.science/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/bundle.json","state":"https://pith.science/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RG4UWF47AY5FDT7E4VSZFWWBJ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:RG4UWF47AY5FDT7E4VSZFWWBJ6","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":"700d94708b18e2d4301c29afef921f0e902726f78e2c5739619c18405ddf5f02","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T16:49:52Z","title_canon_sha256":"3f63b839747871f992542a6a543068f206de5b9be4ad52d32f984adb02a2fceb"},"schema_version":"1.0","source":{"id":"2104.05627","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.05627","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"arxiv_version","alias_value":"2104.05627v3","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05627","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_12","alias_value":"RG4UWF47AY5F","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_16","alias_value":"RG4UWF47AY5FDT7E","created_at":"2026-07-05T03:59:38Z"},{"alias_kind":"pith_short_8","alias_value":"RG4UWF47","created_at":"2026-07-05T03:59:38Z"}],"graph_snapshots":[{"event_id":"sha256:d92ad9ebcc511212a1f22bae24522c2e3bc5fdf717d0d2579252721f29b5c26e","target":"graph","created_at":"2026-07-05T03:59:38Z","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/2104.05627/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multipartite entanglement is one of the core concepts in quantum information science with broad applications that span from condensed matter physics to quantum physics foundations tests. Although its most studied and tested forms encompass two-dimensional systems, current quantum platforms technically allow the manipulation of additional quantum levels. We report the experimental demonstration and certification of a high-dimensional multipartite entangled state in a superconducting quantum processor. We generate the three-qutrit Greenberger-Horne-Zeilinger state by designing the necessary puls","authors_text":"Al\\'an Aspuru-Guzik, Alba Cervera-Lierta, Alexey Galda, Mario Krenn","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T16:49:52Z","title":"Experimental high-dimensional Greenberger-Horne-Zeilinger entanglement with superconducting transmon qutrits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05627","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:d706d206a165be0d1a2ba8103bf6f585ed92357b03e1731ee10a79e6a3ff3253","target":"record","created_at":"2026-07-05T03:59:38Z","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":"700d94708b18e2d4301c29afef921f0e902726f78e2c5739619c18405ddf5f02","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T16:49:52Z","title_canon_sha256":"3f63b839747871f992542a6a543068f206de5b9be4ad52d32f984adb02a2fceb"},"schema_version":"1.0","source":{"id":"2104.05627","kind":"arxiv","version":3}},"canonical_sha256":"89b94b179f063a51cfe4e56592dac14faddf0830226564c1d7bdb9433205fe8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89b94b179f063a51cfe4e56592dac14faddf0830226564c1d7bdb9433205fe8e","first_computed_at":"2026-07-05T03:59:38.606953Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:59:38.606953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DfAUcrpouxT8YR7mzReDrzFvNs8NXhy7KcVKXsyBBl1sjrMYkbrQWx32DqFhB+towsXaA1UiYLfOKYX+o4XLCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:59:38.607355Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.05627","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d706d206a165be0d1a2ba8103bf6f585ed92357b03e1731ee10a79e6a3ff3253","sha256:d92ad9ebcc511212a1f22bae24522c2e3bc5fdf717d0d2579252721f29b5c26e"],"state_sha256":"828f1451e76a9eface8ab8777687aff18350014a1f71ffb7ecb95f056c97b141"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cwqNGt6KWRWZYqUWK7BqHRXzYaJCRhS/AADPsAklZnDqZZOFNsQKK2Gxuq7CAhKWAMX9FEoeV2L61qNh9yYoCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T15:16:18.049089Z","bundle_sha256":"3827018a383a14a680c977fe2bd337df20c0550ebac39c64c8421cbbf2914725"}}