{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:B6M4WZ6ZMU22YE35H43DACQ64M","short_pith_number":"pith:B6M4WZ6Z","canonical_record":{"source":{"id":"cond-mat/9904170","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-04-13T08:49:48Z","cross_cats_sorted":[],"title_canon_sha256":"7ab32d0c19eb97e9554872a76379035c8faee6835461719425a981e8a4e1c2bb","abstract_canon_sha256":"eb4a73f9a2e3377975c799d8d901ccb59f15181ad07be1d6a7071bdf40cb1cd2"},"schema_version":"1.0"},"canonical_sha256":"0f99cb67d96535ac137d3f36300a1ee33326f08e61788a527b4ec19487c1d03e","source":{"kind":"arxiv","id":"cond-mat/9904170","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9904170","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9904170v1","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9904170","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_12","alias_value":"B6M4WZ6ZMU22","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_16","alias_value":"B6M4WZ6ZMU22YE35","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_8","alias_value":"B6M4WZ6Z","created_at":"2026-07-04T16:12:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:B6M4WZ6ZMU22YE35H43DACQ64M","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9904170","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-04-13T08:49:48Z","cross_cats_sorted":[],"title_canon_sha256":"7ab32d0c19eb97e9554872a76379035c8faee6835461719425a981e8a4e1c2bb","abstract_canon_sha256":"eb4a73f9a2e3377975c799d8d901ccb59f15181ad07be1d6a7071bdf40cb1cd2"},"schema_version":"1.0"},"canonical_sha256":"0f99cb67d96535ac137d3f36300a1ee33326f08e61788a527b4ec19487c1d03e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:12:35.204401Z","signature_b64":"BHGAfGKH1O7qXekOQ3MsjBgvYjX5o9C16TzppV39q9y/J6PTw5Zjk+u9ttW79EzndMHiV+B4+inU06skNbtUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f99cb67d96535ac137d3f36300a1ee33326f08e61788a527b4ec19487c1d03e","last_reissued_at":"2026-07-04T16:12:35.203973Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:12:35.203973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9904170","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":"2026-07-04T16:12:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"533ArRYAmHkBOtpJ/gqb1QgLXc2NspS96e0t4YeBwBxFLD61ng1q751ctyguxmIoqjRRq23rDDOCxInoJAVJCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:24:52.203992Z"},"content_sha256":"a6242c3ba753ac05d21139eb6727989d8ae0f8b108dbffe196bff91733a7ee9a","schema_version":"1.0","event_id":"sha256:a6242c3ba753ac05d21139eb6727989d8ae0f8b108dbffe196bff91733a7ee9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:B6M4WZ6ZMU22YE35H43DACQ64M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin dynamics of quantum and classical Heisenberg dimers","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"D. Mentrup, J. Schnack (U. of Osnabrueck), Marshall Luban (Ames Laboratory)","submitted_at":"1999-04-13T08:49:48Z","abstract_excerpt":"Analytical solutions for the time-dependent autocorrelation function of the classical and quantum mechanical spin dimer with arbitrary spin are presented and compared. For large spin quantum numbers or high temperature the classical and the quantum dimer become more and more similar, yet with the major difference that the quantum autocorrelation function is periodic in time whereas the classical is not."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9904170","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/cond-mat/9904170/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":"2026-07-04T16:12:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kZVf3+d+goaFvJS4HO5r7qLQAq/aoi8Pm69BP1dqoEkmcJSG7BQ9Rh1CRfUpAGlvT8yxkCFvCF8POkSeIjFMAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:24:52.204502Z"},"content_sha256":"ba078f3eb95b746468687f7cf46d4648dbefbf32c7bc3c9402d6d90e732c0422","schema_version":"1.0","event_id":"sha256:ba078f3eb95b746468687f7cf46d4648dbefbf32c7bc3c9402d6d90e732c0422"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B6M4WZ6ZMU22YE35H43DACQ64M/bundle.json","state_url":"https://pith.science/pith/B6M4WZ6ZMU22YE35H43DACQ64M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B6M4WZ6ZMU22YE35H43DACQ64M/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":"2026-08-07T09:24:52Z","links":{"resolver":"https://pith.science/pith/B6M4WZ6ZMU22YE35H43DACQ64M","bundle":"https://pith.science/pith/B6M4WZ6ZMU22YE35H43DACQ64M/bundle.json","state":"https://pith.science/pith/B6M4WZ6ZMU22YE35H43DACQ64M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B6M4WZ6ZMU22YE35H43DACQ64M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:B6M4WZ6ZMU22YE35H43DACQ64M","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":"eb4a73f9a2e3377975c799d8d901ccb59f15181ad07be1d6a7071bdf40cb1cd2","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-04-13T08:49:48Z","title_canon_sha256":"7ab32d0c19eb97e9554872a76379035c8faee6835461719425a981e8a4e1c2bb"},"schema_version":"1.0","source":{"id":"cond-mat/9904170","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9904170","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9904170v1","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9904170","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_12","alias_value":"B6M4WZ6ZMU22","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_16","alias_value":"B6M4WZ6ZMU22YE35","created_at":"2026-07-04T16:12:35Z"},{"alias_kind":"pith_short_8","alias_value":"B6M4WZ6Z","created_at":"2026-07-04T16:12:35Z"}],"graph_snapshots":[{"event_id":"sha256:ba078f3eb95b746468687f7cf46d4648dbefbf32c7bc3c9402d6d90e732c0422","target":"graph","created_at":"2026-07-04T16:12:35Z","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/cond-mat/9904170/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Analytical solutions for the time-dependent autocorrelation function of the classical and quantum mechanical spin dimer with arbitrary spin are presented and compared. For large spin quantum numbers or high temperature the classical and the quantum dimer become more and more similar, yet with the major difference that the quantum autocorrelation function is periodic in time whereas the classical is not.","authors_text":"D. Mentrup, J. Schnack (U. of Osnabrueck), Marshall Luban (Ames Laboratory)","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-04-13T08:49:48Z","title":"Spin dynamics of quantum and classical Heisenberg dimers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9904170","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:a6242c3ba753ac05d21139eb6727989d8ae0f8b108dbffe196bff91733a7ee9a","target":"record","created_at":"2026-07-04T16:12:35Z","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":"eb4a73f9a2e3377975c799d8d901ccb59f15181ad07be1d6a7071bdf40cb1cd2","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-04-13T08:49:48Z","title_canon_sha256":"7ab32d0c19eb97e9554872a76379035c8faee6835461719425a981e8a4e1c2bb"},"schema_version":"1.0","source":{"id":"cond-mat/9904170","kind":"arxiv","version":1}},"canonical_sha256":"0f99cb67d96535ac137d3f36300a1ee33326f08e61788a527b4ec19487c1d03e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f99cb67d96535ac137d3f36300a1ee33326f08e61788a527b4ec19487c1d03e","first_computed_at":"2026-07-04T16:12:35.203973Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:12:35.203973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BHGAfGKH1O7qXekOQ3MsjBgvYjX5o9C16TzppV39q9y/J6PTw5Zjk+u9ttW79EzndMHiV+B4+inU06skNbtUAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:12:35.204401Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9904170","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6242c3ba753ac05d21139eb6727989d8ae0f8b108dbffe196bff91733a7ee9a","sha256:ba078f3eb95b746468687f7cf46d4648dbefbf32c7bc3c9402d6d90e732c0422"],"state_sha256":"ee575891e46d81e05042b88c3cc9b4724b9d5801bbb771355f4cc8038b960071"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9D7Qp1KptXXeBOr1O8DgYQR0+EO7q6dmSXldFm20h3/Mjgfmpk8VE+71h7IgqHtaczXUxFxeMHfnIkDMSOy+BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T09:24:52.209593Z","bundle_sha256":"3ef4daa9893e8420554c0d2e7140b0d3832c9fa4f0c51e715b60955b4954e2d3"}}