{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:XFGOX6E3E2URBUVB3HXZRXRPSI","short_pith_number":"pith:XFGOX6E3","canonical_record":{"source":{"id":"2109.07503","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-15T18:08:14Z","cross_cats_sorted":[],"title_canon_sha256":"1a96e33bbc8496d9519c8e7a2f4d5ac56d032b4bc69165d41e0aaa76822693df","abstract_canon_sha256":"0932fab14e7e50c8f5b4170f33310808ef115500f37ae4ece6c65f293408fcd2"},"schema_version":"1.0"},"canonical_sha256":"b94cebf89b26a910d2a1d9ef98de2f921627b0375ebdd3824d6089dbc879b5ed","source":{"kind":"arxiv","id":"2109.07503","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.07503","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"2109.07503v2","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.07503","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"XFGOX6E3E2UR","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_16","alias_value":"XFGOX6E3E2URBUVB","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_8","alias_value":"XFGOX6E3","created_at":"2026-07-05T03:51:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:XFGOX6E3E2URBUVB3HXZRXRPSI","target":"record","payload":{"canonical_record":{"source":{"id":"2109.07503","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-15T18:08:14Z","cross_cats_sorted":[],"title_canon_sha256":"1a96e33bbc8496d9519c8e7a2f4d5ac56d032b4bc69165d41e0aaa76822693df","abstract_canon_sha256":"0932fab14e7e50c8f5b4170f33310808ef115500f37ae4ece6c65f293408fcd2"},"schema_version":"1.0"},"canonical_sha256":"b94cebf89b26a910d2a1d9ef98de2f921627b0375ebdd3824d6089dbc879b5ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:51:09.689223Z","signature_b64":"C2fL6Ss5nlgATmj6fX0UvbxHz1v/8dvRF1cSITaHGfXjFqRiJTZz9M1mfN+FlogqEcHeIAHsgBG1Vb2YFAy4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b94cebf89b26a910d2a1d9ef98de2f921627b0375ebdd3824d6089dbc879b5ed","last_reissued_at":"2026-07-05T03:51:09.688774Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:51:09.688774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.07503","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":"2026-07-05T03:51:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4bA8KmyfIk060QyLTiCAxeeqs/zXJXRk88kudilasm3G9GqZ1fTiJnZi7bzdyaAvpZbM3Bb1cAm4XQZS44NyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:48:38.379329Z"},"content_sha256":"acccc54deb3399ae66abcb005a7477d3f23dceae60f797412b793d8404987432","schema_version":"1.0","event_id":"sha256:acccc54deb3399ae66abcb005a7477d3f23dceae60f797412b793d8404987432"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:XFGOX6E3E2URBUVB3HXZRXRPSI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maximal quantum entanglement at exceptional points via unitary and thermal dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Akhil Kumar, Kater W. Murch, Yogesh N. Joglekar","submitted_at":"2021-09-15T18:08:14Z","abstract_excerpt":"Minimal, open quantum systems that are governed by non-Hermitian Hamiltonians have been realized across multiple platforms in the past two years. Here we investigate the dynamics of open systems with Hermitian or anti-Hermitian Hamiltonians, both of which can be implemented in such platforms. For a single system subject to unitary and thermal dynamics in a periodic manner, we show that the corresponding Floquet Hamiltonian has a rich phase diagram with numerous exceptional-point (EP) degeneracy contours. This protocol can be used to realize a quantum Hatano-Nelson model that is characterized b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.07503","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.07503/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":"2026-07-05T03:51:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Caut9nnYkXEwtMFrS5o+w1P71KWo/sP/VSwj5xVMUetLtlKeovzaR6I0g2qXwVCHcaA1ZsjkNDroIE5uT7+oAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:48:38.379854Z"},"content_sha256":"086fd9c4be09e387c5f67f278d2ffdea7b02838058c2da9c884ba195401f98db","schema_version":"1.0","event_id":"sha256:086fd9c4be09e387c5f67f278d2ffdea7b02838058c2da9c884ba195401f98db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/bundle.json","state_url":"https://pith.science/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/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":"2026-08-04T07:48:38Z","links":{"resolver":"https://pith.science/pith/XFGOX6E3E2URBUVB3HXZRXRPSI","bundle":"https://pith.science/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/bundle.json","state":"https://pith.science/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XFGOX6E3E2URBUVB3HXZRXRPSI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XFGOX6E3E2URBUVB3HXZRXRPSI","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":"0932fab14e7e50c8f5b4170f33310808ef115500f37ae4ece6c65f293408fcd2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-15T18:08:14Z","title_canon_sha256":"1a96e33bbc8496d9519c8e7a2f4d5ac56d032b4bc69165d41e0aaa76822693df"},"schema_version":"1.0","source":{"id":"2109.07503","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.07503","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"2109.07503v2","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.07503","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"XFGOX6E3E2UR","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_16","alias_value":"XFGOX6E3E2URBUVB","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_8","alias_value":"XFGOX6E3","created_at":"2026-07-05T03:51:09Z"}],"graph_snapshots":[{"event_id":"sha256:086fd9c4be09e387c5f67f278d2ffdea7b02838058c2da9c884ba195401f98db","target":"graph","created_at":"2026-07-05T03:51:09Z","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/2109.07503/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Minimal, open quantum systems that are governed by non-Hermitian Hamiltonians have been realized across multiple platforms in the past two years. Here we investigate the dynamics of open systems with Hermitian or anti-Hermitian Hamiltonians, both of which can be implemented in such platforms. For a single system subject to unitary and thermal dynamics in a periodic manner, we show that the corresponding Floquet Hamiltonian has a rich phase diagram with numerous exceptional-point (EP) degeneracy contours. This protocol can be used to realize a quantum Hatano-Nelson model that is characterized b","authors_text":"Akhil Kumar, Kater W. Murch, Yogesh N. Joglekar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-15T18:08:14Z","title":"Maximal quantum entanglement at exceptional points via unitary and thermal dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.07503","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:acccc54deb3399ae66abcb005a7477d3f23dceae60f797412b793d8404987432","target":"record","created_at":"2026-07-05T03:51:09Z","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":"0932fab14e7e50c8f5b4170f33310808ef115500f37ae4ece6c65f293408fcd2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-15T18:08:14Z","title_canon_sha256":"1a96e33bbc8496d9519c8e7a2f4d5ac56d032b4bc69165d41e0aaa76822693df"},"schema_version":"1.0","source":{"id":"2109.07503","kind":"arxiv","version":2}},"canonical_sha256":"b94cebf89b26a910d2a1d9ef98de2f921627b0375ebdd3824d6089dbc879b5ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b94cebf89b26a910d2a1d9ef98de2f921627b0375ebdd3824d6089dbc879b5ed","first_computed_at":"2026-07-05T03:51:09.688774Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:51:09.688774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C2fL6Ss5nlgATmj6fX0UvbxHz1v/8dvRF1cSITaHGfXjFqRiJTZz9M1mfN+FlogqEcHeIAHsgBG1Vb2YFAy4AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:51:09.689223Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.07503","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:acccc54deb3399ae66abcb005a7477d3f23dceae60f797412b793d8404987432","sha256:086fd9c4be09e387c5f67f278d2ffdea7b02838058c2da9c884ba195401f98db"],"state_sha256":"edf8843cb43c37eddfe9da6d2010c3154d96c1871fc4df9e80aa2ce0690d28d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yFuZ322t6qzEPzF6Y/L7npL6SIn6OZj9preultTuifixRG9nCCyA29/cp1B+fcUekmAj50q9yNg7XIwx4WG+Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T07:48:38.383881Z","bundle_sha256":"41a9b5d3cec2dbaf89d2577985bc592a33cc5df044ec807d5a05c8b7cbc3f674"}}