{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2TFCCLOA7P3VLWISNVGPPGX6PL","short_pith_number":"pith:2TFCCLOA","canonical_record":{"source":{"id":"1012.0907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-04T11:52:22Z","cross_cats_sorted":["cond-mat.str-el","hep-th","math-ph","math.MP"],"title_canon_sha256":"85ce197d18758991e7e5f10c3c76e8278f8da0b98a6e68305139a19303f23929","abstract_canon_sha256":"0767da1fb058b16f223d4b145a75990c6c60613349921fef9a22d3857385d844"},"schema_version":"1.0"},"canonical_sha256":"d4ca212dc0fbf755d9126d4cf79afe7ac182538c20a53b53ec2f7dabc081d5b9","source":{"kind":"arxiv","id":"1012.0907","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0907","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0907v1","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0907","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"2TFCCLOA7P3V","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2TFCCLOA7P3VLWIS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2TFCCLOA","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2TFCCLOA7P3VLWISNVGPPGX6PL","target":"record","payload":{"canonical_record":{"source":{"id":"1012.0907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-04T11:52:22Z","cross_cats_sorted":["cond-mat.str-el","hep-th","math-ph","math.MP"],"title_canon_sha256":"85ce197d18758991e7e5f10c3c76e8278f8da0b98a6e68305139a19303f23929","abstract_canon_sha256":"0767da1fb058b16f223d4b145a75990c6c60613349921fef9a22d3857385d844"},"schema_version":"1.0"},"canonical_sha256":"d4ca212dc0fbf755d9126d4cf79afe7ac182538c20a53b53ec2f7dabc081d5b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:12.049152Z","signature_b64":"ErHQV5YW49FiWWeiw8aDXX1Y/OeDCYdM4hirjZB7Iz6CgYkjr0nm/KlKkRC6h6iLX73qtn04PwDiv2IAwJWcBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4ca212dc0fbf755d9126d4cf79afe7ac182538c20a53b53ec2f7dabc081d5b9","last_reissued_at":"2026-05-18T04:12:12.048603Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:12.048603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.0907","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":"2026-05-18T04:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2XhFZJoO+KUOljnQIstCriehk9ASkoj+G6rsmb60gj7s5fuYk8K2WIDcZ5BD4h5N6HO+YnljDjdQul3NZyUcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:59:47.551566Z"},"content_sha256":"e33f720fe788fcab0be91f2c2387979ac531be99f216e43cec197f164857a8d6","schema_version":"1.0","event_id":"sha256:e33f720fe788fcab0be91f2c2387979ac531be99f216e43cec197f164857a8d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2TFCCLOA7P3VLWISNVGPPGX6PL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constructing Exactly Solvable Pseudo-hermitian Many-particle Quantum Systems by Isospectral Deformation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-th","math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"Pijush K. Ghosh","submitted_at":"2010-12-04T11:52:22Z","abstract_excerpt":"A class of non-Dirac-hermitian many-particle quantum systems admitting entirely real spectra and unitary time-evolution is presented. These quantum models are isospectral with Dirac-hermitian systems and are exactly solvable. The general method involves a realization of the basic canonical commutation relations defining the quantum system in terms of operators those are hermitian with respect to a pre-determined positive definite metric in the Hilbert space. Appropriate combinations of these operators result in a large number of pseudo-hermitian quantum systems admitting entirely real spectra "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0907","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":""},"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":"2026-05-18T04:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SwlgkmhKWBAlmV/lfIuu1eYO2MZs64xtN0wcR8PGkz66GQHuExn8SX5lfk+hrIpPsc1Qn1DYDwdZsBORoHugAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:59:47.552290Z"},"content_sha256":"899a9dad6d9479d96c7187b4ff132292c333a6111d6d93c969fa51b7032cafb6","schema_version":"1.0","event_id":"sha256:899a9dad6d9479d96c7187b4ff132292c333a6111d6d93c969fa51b7032cafb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/bundle.json","state_url":"https://pith.science/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/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":"2026-05-27T06:59:47Z","links":{"resolver":"https://pith.science/pith/2TFCCLOA7P3VLWISNVGPPGX6PL","bundle":"https://pith.science/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/bundle.json","state":"https://pith.science/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2TFCCLOA7P3VLWISNVGPPGX6PL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2TFCCLOA7P3VLWISNVGPPGX6PL","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":"0767da1fb058b16f223d4b145a75990c6c60613349921fef9a22d3857385d844","cross_cats_sorted":["cond-mat.str-el","hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-04T11:52:22Z","title_canon_sha256":"85ce197d18758991e7e5f10c3c76e8278f8da0b98a6e68305139a19303f23929"},"schema_version":"1.0","source":{"id":"1012.0907","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0907","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0907v1","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0907","created_at":"2026-05-18T04:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"2TFCCLOA7P3V","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2TFCCLOA7P3VLWIS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2TFCCLOA","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:899a9dad6d9479d96c7187b4ff132292c333a6111d6d93c969fa51b7032cafb6","target":"graph","created_at":"2026-05-18T04:12:12Z","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":"A class of non-Dirac-hermitian many-particle quantum systems admitting entirely real spectra and unitary time-evolution is presented. These quantum models are isospectral with Dirac-hermitian systems and are exactly solvable. The general method involves a realization of the basic canonical commutation relations defining the quantum system in terms of operators those are hermitian with respect to a pre-determined positive definite metric in the Hilbert space. Appropriate combinations of these operators result in a large number of pseudo-hermitian quantum systems admitting entirely real spectra ","authors_text":"Pijush K. Ghosh","cross_cats":["cond-mat.str-el","hep-th","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-04T11:52:22Z","title":"Constructing Exactly Solvable Pseudo-hermitian Many-particle Quantum Systems by Isospectral Deformation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0907","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:e33f720fe788fcab0be91f2c2387979ac531be99f216e43cec197f164857a8d6","target":"record","created_at":"2026-05-18T04:12:12Z","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":"0767da1fb058b16f223d4b145a75990c6c60613349921fef9a22d3857385d844","cross_cats_sorted":["cond-mat.str-el","hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-04T11:52:22Z","title_canon_sha256":"85ce197d18758991e7e5f10c3c76e8278f8da0b98a6e68305139a19303f23929"},"schema_version":"1.0","source":{"id":"1012.0907","kind":"arxiv","version":1}},"canonical_sha256":"d4ca212dc0fbf755d9126d4cf79afe7ac182538c20a53b53ec2f7dabc081d5b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4ca212dc0fbf755d9126d4cf79afe7ac182538c20a53b53ec2f7dabc081d5b9","first_computed_at":"2026-05-18T04:12:12.048603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:12.048603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ErHQV5YW49FiWWeiw8aDXX1Y/OeDCYdM4hirjZB7Iz6CgYkjr0nm/KlKkRC6h6iLX73qtn04PwDiv2IAwJWcBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:12.049152Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.0907","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e33f720fe788fcab0be91f2c2387979ac531be99f216e43cec197f164857a8d6","sha256:899a9dad6d9479d96c7187b4ff132292c333a6111d6d93c969fa51b7032cafb6"],"state_sha256":"f3b9ad595e7c77805f04fe5297d2bdb09290a64ecb2a8aa1ce651ca809ede5cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51iAnXJ1rvXjbpoZlkWXddMPVgv35a9X1kjOEeg6XUxvBCM5g9q0vE/0AnQBvyh4AhP7EpDfaxN0Zjj6DnwcBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T06:59:47.555706Z","bundle_sha256":"bf5cf1c2b8c32d33c2ca24e631bd4a09fa5858231ca2a8ebcaef2f07c01a9455"}}