{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:OI4N3SCD4FT6PPDVSP52BFAIPT","short_pith_number":"pith:OI4N3SCD","canonical_record":{"source":{"id":"2306.00057","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-31T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"0c7e6f7d43800ec80d367e8a28e29addd06f8a64fbc435464479c8b8e57f186c","abstract_canon_sha256":"0059c2b779a1c6b71287d90aca84ba0b9378170b738b054ae5fd74fe28bfd49c"},"schema_version":"1.0"},"canonical_sha256":"7238ddc843e167e7bc7593fba094087cdb1e24608bd6af644b4a4a0f970a88cc","source":{"kind":"arxiv","id":"2306.00057","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.00057","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"2306.00057v1","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.00057","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"OI4N3SCD4FT6","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_16","alias_value":"OI4N3SCD4FT6PPDV","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_8","alias_value":"OI4N3SCD","created_at":"2026-07-05T07:40:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:OI4N3SCD4FT6PPDVSP52BFAIPT","target":"record","payload":{"canonical_record":{"source":{"id":"2306.00057","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-31T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"0c7e6f7d43800ec80d367e8a28e29addd06f8a64fbc435464479c8b8e57f186c","abstract_canon_sha256":"0059c2b779a1c6b71287d90aca84ba0b9378170b738b054ae5fd74fe28bfd49c"},"schema_version":"1.0"},"canonical_sha256":"7238ddc843e167e7bc7593fba094087cdb1e24608bd6af644b4a4a0f970a88cc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:40:53.920652Z","signature_b64":"BdHvoazpbaPVOiBB+gHJ1yWNbk6iJD+To9haFlTgk66/6p+ChgaRLlrrNoeyM1KWF30f1jYXFyLdHyxVOwwcCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7238ddc843e167e7bc7593fba094087cdb1e24608bd6af644b4a4a0f970a88cc","last_reissued_at":"2026-07-05T07:40:53.920164Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:40:53.920164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2306.00057","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"STtOwPwoa28dM1KBW2f27fq7gFzT6gV2j3/M1LXs/SYPKrNWuCbdEICUQd4ZGVL5XelXPryWc37ITE8GXtV3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:12:53.938770Z"},"content_sha256":"d30b1e0433bb59c56e81be7012763dad935c8a158ffe74af87415b5332754d19","schema_version":"1.0","event_id":"sha256:d30b1e0433bb59c56e81be7012763dad935c8a158ffe74af87415b5332754d19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:OI4N3SCD4FT6PPDVSP52BFAIPT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring Large-Scale Entanglement in Quantum Simulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Christian F. Roos, Christian Kokail, Florian Kranzl, Manoj K. Joshi, Peter Zoller, Rainer Blatt, Rick van Bijnen, Torsten V. Zache","submitted_at":"2023-05-31T18:00:01Z","abstract_excerpt":"Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a fundamental challenge in quantum information science. Here we perform experimental investigations of entanglement based on the entanglement Hamiltonian, as an effective description of the reduced density operator for large subsystems. We prepare ground and excited states of a 1D XXZ Heisenberg chain on a 51-ion programmable quantum simulator and perform sample-efficient `learning' of the entanglement Hamiltonian for s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.00057","kind":"arxiv","version":1},"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/2306.00057/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":"2026-07-05T07:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3019xngbCs+d62RuwPpTrsJyZoUssB9jBCG7BWLKPSrIeQ7TizFtoLCEV8Wtt0imR9NZUzrZisMNwyJ5eNq5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:12:53.941482Z"},"content_sha256":"7b1b613b5cf9416bd2e86ba020368fe28246cdd53b850e5f5c6b89447ef43d7e","schema_version":"1.0","event_id":"sha256:7b1b613b5cf9416bd2e86ba020368fe28246cdd53b850e5f5c6b89447ef43d7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/bundle.json","state_url":"https://pith.science/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/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":"2026-08-05T15:12:53Z","links":{"resolver":"https://pith.science/pith/OI4N3SCD4FT6PPDVSP52BFAIPT","bundle":"https://pith.science/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/bundle.json","state":"https://pith.science/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OI4N3SCD4FT6PPDVSP52BFAIPT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OI4N3SCD4FT6PPDVSP52BFAIPT","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":"0059c2b779a1c6b71287d90aca84ba0b9378170b738b054ae5fd74fe28bfd49c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-31T18:00:01Z","title_canon_sha256":"0c7e6f7d43800ec80d367e8a28e29addd06f8a64fbc435464479c8b8e57f186c"},"schema_version":"1.0","source":{"id":"2306.00057","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.00057","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"2306.00057v1","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.00057","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"OI4N3SCD4FT6","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_16","alias_value":"OI4N3SCD4FT6PPDV","created_at":"2026-07-05T07:40:53Z"},{"alias_kind":"pith_short_8","alias_value":"OI4N3SCD","created_at":"2026-07-05T07:40:53Z"}],"graph_snapshots":[{"event_id":"sha256:7b1b613b5cf9416bd2e86ba020368fe28246cdd53b850e5f5c6b89447ef43d7e","target":"graph","created_at":"2026-07-05T07:40:53Z","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/2306.00057/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a fundamental challenge in quantum information science. Here we perform experimental investigations of entanglement based on the entanglement Hamiltonian, as an effective description of the reduced density operator for large subsystems. We prepare ground and excited states of a 1D XXZ Heisenberg chain on a 51-ion programmable quantum simulator and perform sample-efficient `learning' of the entanglement Hamiltonian for s","authors_text":"Christian F. Roos, Christian Kokail, Florian Kranzl, Manoj K. Joshi, Peter Zoller, Rainer Blatt, Rick van Bijnen, Torsten V. Zache","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-31T18:00:01Z","title":"Exploring Large-Scale Entanglement in Quantum Simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.00057","kind":"arxiv","version":1},"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:d30b1e0433bb59c56e81be7012763dad935c8a158ffe74af87415b5332754d19","target":"record","created_at":"2026-07-05T07:40:53Z","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":"0059c2b779a1c6b71287d90aca84ba0b9378170b738b054ae5fd74fe28bfd49c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-31T18:00:01Z","title_canon_sha256":"0c7e6f7d43800ec80d367e8a28e29addd06f8a64fbc435464479c8b8e57f186c"},"schema_version":"1.0","source":{"id":"2306.00057","kind":"arxiv","version":1}},"canonical_sha256":"7238ddc843e167e7bc7593fba094087cdb1e24608bd6af644b4a4a0f970a88cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7238ddc843e167e7bc7593fba094087cdb1e24608bd6af644b4a4a0f970a88cc","first_computed_at":"2026-07-05T07:40:53.920164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:40:53.920164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BdHvoazpbaPVOiBB+gHJ1yWNbk6iJD+To9haFlTgk66/6p+ChgaRLlrrNoeyM1KWF30f1jYXFyLdHyxVOwwcCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:40:53.920652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.00057","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d30b1e0433bb59c56e81be7012763dad935c8a158ffe74af87415b5332754d19","sha256:7b1b613b5cf9416bd2e86ba020368fe28246cdd53b850e5f5c6b89447ef43d7e"],"state_sha256":"9a588e721ed3b14b326a3a34fc60aa5ebb166104867f1519a5322bd7ba988f4a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m1CtrGjo8q3svfZjVQU3esLzA8aMwvmoP/8dtkYC27ibAAFWdg/z6VSX2VtuZWKUV1FEfKOdNkzp0qKN9gOwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:12:53.974261Z","bundle_sha256":"4d7aa52fd823684d94726cf575bccaf7adf79010701125899ffdce1f51c0eb15"}}