{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:VKBSQYZFQXUPPDWGSZ5ECI3BH7","short_pith_number":"pith:VKBSQYZF","canonical_record":{"source":{"id":"cond-mat/9908118","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-08-09T06:18:21Z","cross_cats_sorted":[],"title_canon_sha256":"e568936e4a302d1e56c469be4f8344d7c98fb49abd6e86d778b737a8cbc74212","abstract_canon_sha256":"cc0ceecc16c2768148e4ad953dc9a068f3f6f03ba14bbbb9ee683eb7077e4f80"},"schema_version":"1.0"},"canonical_sha256":"aa8328632585e8f78ec6967a4123613fe6a5387792aa552f180254525ef47dc5","source":{"kind":"arxiv","id":"cond-mat/9908118","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9908118","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9908118v1","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9908118","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"pith_short_12","alias_value":"VKBSQYZFQXUP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKBSQYZFQXUPPDWG","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKBSQYZF","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:VKBSQYZFQXUPPDWGSZ5ECI3BH7","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9908118","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-08-09T06:18:21Z","cross_cats_sorted":[],"title_canon_sha256":"e568936e4a302d1e56c469be4f8344d7c98fb49abd6e86d778b737a8cbc74212","abstract_canon_sha256":"cc0ceecc16c2768148e4ad953dc9a068f3f6f03ba14bbbb9ee683eb7077e4f80"},"schema_version":"1.0"},"canonical_sha256":"aa8328632585e8f78ec6967a4123613fe6a5387792aa552f180254525ef47dc5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:04.414882Z","signature_b64":"01W0XlhwNyDtmXSalLLBZPYG73yAi4MPOjL8rsJdCabOc4DEVXmnI1l1nNEMbV/3hshzCOnOyx6qGG3Zq3U6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa8328632585e8f78ec6967a4123613fe6a5387792aa552f180254525ef47dc5","last_reissued_at":"2026-05-18T01:07:04.414262Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:04.414262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9908118","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":"2026-05-18T01:07:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"od3T1+GgKQowNI/5c7NpNZF/U7x6O9AVIBKAw5EhtX0YeEPU3Qv+X6WHRppaN6hMISRSSibboa/J5CTmWEt9DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:28:46.963835Z"},"content_sha256":"133df0ddda3e0f40365d25f5ec21257b3de315a9c5bec60fda78bd171a267162","schema_version":"1.0","event_id":"sha256:133df0ddda3e0f40365d25f5ec21257b3de315a9c5bec60fda78bd171a267162"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:VKBSQYZFQXUPPDWGSZ5ECI3BH7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Realization of Bose-Einstein condensation of dilute magnons in TlCuCl$_3$","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"A. Oosawa, H. Tanaka, M. Oshikawa, T. Nikuni","submitted_at":"1999-08-09T06:18:21Z","abstract_excerpt":"The recent observation [Oosawa et al. J. Phys. : Condens. Matter {\\bf 11}, 265 (1999)] of the field-induced N\\'{e}el ordering in a spin-gap magnetic compound TlCuCl$_3$ is interpreted as a Bose-Einstein Condensation of magnons. A mean-field calculation based on this picture is shown to describe well the temperature dependence of the magnetization. The present system opens a new area for studying Bose-Einstein condensation of thermodynamically large number of particles in a grand-canonical ensemble."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9908118","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":"2026-05-18T01:07:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YnGSPkyMVHCdvSM52OEprUNZZxFszmi21V5ch+uroSzM27EXIQsGTiqquLTcYqqfOjv2vAWZN1TEioeqN95VDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:28:46.964220Z"},"content_sha256":"76cc599d296a21238ba5e2a0805e8d0693fc893d02e7dfb4060be2ae2824ff9a","schema_version":"1.0","event_id":"sha256:76cc599d296a21238ba5e2a0805e8d0693fc893d02e7dfb4060be2ae2824ff9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/bundle.json","state_url":"https://pith.science/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/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":"2026-05-27T18:28:46Z","links":{"resolver":"https://pith.science/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7","bundle":"https://pith.science/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/bundle.json","state":"https://pith.science/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKBSQYZFQXUPPDWGSZ5ECI3BH7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:VKBSQYZFQXUPPDWGSZ5ECI3BH7","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":"cc0ceecc16c2768148e4ad953dc9a068f3f6f03ba14bbbb9ee683eb7077e4f80","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-08-09T06:18:21Z","title_canon_sha256":"e568936e4a302d1e56c469be4f8344d7c98fb49abd6e86d778b737a8cbc74212"},"schema_version":"1.0","source":{"id":"cond-mat/9908118","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9908118","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9908118v1","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9908118","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"pith_short_12","alias_value":"VKBSQYZFQXUP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"VKBSQYZFQXUPPDWG","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"VKBSQYZF","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:76cc599d296a21238ba5e2a0805e8d0693fc893d02e7dfb4060be2ae2824ff9a","target":"graph","created_at":"2026-05-18T01:07:04Z","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":"The recent observation [Oosawa et al. J. Phys. : Condens. Matter {\\bf 11}, 265 (1999)] of the field-induced N\\'{e}el ordering in a spin-gap magnetic compound TlCuCl$_3$ is interpreted as a Bose-Einstein Condensation of magnons. A mean-field calculation based on this picture is shown to describe well the temperature dependence of the magnetization. The present system opens a new area for studying Bose-Einstein condensation of thermodynamically large number of particles in a grand-canonical ensemble.","authors_text":"A. Oosawa, H. Tanaka, M. Oshikawa, T. Nikuni","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-08-09T06:18:21Z","title":"Realization of Bose-Einstein condensation of dilute magnons in TlCuCl$_3$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9908118","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":"sha256:133df0ddda3e0f40365d25f5ec21257b3de315a9c5bec60fda78bd171a267162","target":"record","created_at":"2026-05-18T01:07:04Z","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":"cc0ceecc16c2768148e4ad953dc9a068f3f6f03ba14bbbb9ee683eb7077e4f80","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"1999-08-09T06:18:21Z","title_canon_sha256":"e568936e4a302d1e56c469be4f8344d7c98fb49abd6e86d778b737a8cbc74212"},"schema_version":"1.0","source":{"id":"cond-mat/9908118","kind":"arxiv","version":1}},"canonical_sha256":"aa8328632585e8f78ec6967a4123613fe6a5387792aa552f180254525ef47dc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa8328632585e8f78ec6967a4123613fe6a5387792aa552f180254525ef47dc5","first_computed_at":"2026-05-18T01:07:04.414262Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:04.414262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"01W0XlhwNyDtmXSalLLBZPYG73yAi4MPOjL8rsJdCabOc4DEVXmnI1l1nNEMbV/3hshzCOnOyx6qGG3Zq3U6BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:04.414882Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9908118","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:133df0ddda3e0f40365d25f5ec21257b3de315a9c5bec60fda78bd171a267162","sha256:76cc599d296a21238ba5e2a0805e8d0693fc893d02e7dfb4060be2ae2824ff9a"],"state_sha256":"8ece520b0c382ec33bee64a69e9737a01b71e98b8b28ed6b29d8d5567e0067c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qAg1C2ECgH5JEns3NTeWajXks346xzXi+8e863BH5ly58l8PxsR6XqflQz+mHyUnuG98gsjn+9McT3/9Pf6IAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:28:46.967391Z","bundle_sha256":"16b238d1048a660231299b62ab5c68106881f124d16cef8e83dede7fa33673ed"}}