{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:DR56KAMBD4OPITJCKHDB2QE7OH","short_pith_number":"pith:DR56KAMB","canonical_record":{"source":{"id":"cond-mat/9707044","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1997-07-03T09:28:18Z","cross_cats_sorted":[],"title_canon_sha256":"eef8b91b5359c32f626c11acd90ae9c7d0193e8e24f89f974b60970eeb2b8b57","abstract_canon_sha256":"142c9d42c5a9b3cde22eb099229ce7093ea2a4ff99ed20bac248bbcdb49bebe3"},"schema_version":"1.0"},"canonical_sha256":"1c7be501811f1cf44d2251c61d409f71d4396c22143c2ec0ff0ce0d5d3dccf19","source":{"kind":"arxiv","id":"cond-mat/9707044","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9707044","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9707044v1","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9707044","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"DR56KAMBD4OP","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"DR56KAMBD4OPITJC","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"DR56KAMB","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:DR56KAMBD4OPITJCKHDB2QE7OH","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9707044","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1997-07-03T09:28:18Z","cross_cats_sorted":[],"title_canon_sha256":"eef8b91b5359c32f626c11acd90ae9c7d0193e8e24f89f974b60970eeb2b8b57","abstract_canon_sha256":"142c9d42c5a9b3cde22eb099229ce7093ea2a4ff99ed20bac248bbcdb49bebe3"},"schema_version":"1.0"},"canonical_sha256":"1c7be501811f1cf44d2251c61d409f71d4396c22143c2ec0ff0ce0d5d3dccf19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:20.223418Z","signature_b64":"h6q7AwJHRA/kcgarSYC6fYIFE9Bt6BzIy2Dl4YbS+YXFA0Yjn0ITedBX5LV6GsyY7DL3nTfUByuWfCmEFhSZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c7be501811f1cf44d2251c61d409f71d4396c22143c2ec0ff0ce0d5d3dccf19","last_reissued_at":"2026-05-18T01:09:20.222905Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:20.222905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9707044","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":"2026-05-18T01:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xar82s3qheQ9XuMUYJ/F93AmbjNiucLvrOh2Uquani/pTPt7tpHitgNWb1W7D4/BL8YwFydowB8M1WFOWjRHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:17:34.433101Z"},"content_sha256":"258452aa1364a96219594c9203c5f8c07096e16d00d62a8a379ad9498e5c69f7","schema_version":"1.0","event_id":"sha256:258452aa1364a96219594c9203c5f8c07096e16d00d62a8a379ad9498e5c69f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:DR56KAMBD4OPITJCKHDB2QE7OH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\lambda$-Type phase transition for a weakly interacting bose gas","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat","authors_text":"Centro de Matem\\'aticas y F\\'isica Te\\'orica, Cuba, H. Perez Rojas (Grupo de F\\'isica Te\\'orica, I. Cabrera, ICIMAF, International Centre for Theoretical Physics)","submitted_at":"1997-07-03T09:28:18Z","abstract_excerpt":"A mechanism generating a $\\lambda$-type behavior in the specific heat of a Bose gas near the critical temperature $T_c$ is discussed. It is shown to work for a general class of quasiparticle spectra, and especially, for the Bogoliubov's model of a weakly interacting Bose gas, where a temperature-dependent quasi-particle spectrum is obtained."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9707044","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":"2026-05-18T01:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8HLz1qGgUF7H0wMrB25Eycysj6Xdm3yW+GUDLEPfrisn912Y8Rr2LOfFm/WdBiPntpWk84HHJSp3oWNLBbwBBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:17:34.433454Z"},"content_sha256":"b3e81b055abbcce05cc9cae44d95ade8c2156d6f4f509b9ea2550b6de409eb86","schema_version":"1.0","event_id":"sha256:b3e81b055abbcce05cc9cae44d95ade8c2156d6f4f509b9ea2550b6de409eb86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DR56KAMBD4OPITJCKHDB2QE7OH/bundle.json","state_url":"https://pith.science/pith/DR56KAMBD4OPITJCKHDB2QE7OH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DR56KAMBD4OPITJCKHDB2QE7OH/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":"2026-06-04T19:17:34Z","links":{"resolver":"https://pith.science/pith/DR56KAMBD4OPITJCKHDB2QE7OH","bundle":"https://pith.science/pith/DR56KAMBD4OPITJCKHDB2QE7OH/bundle.json","state":"https://pith.science/pith/DR56KAMBD4OPITJCKHDB2QE7OH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DR56KAMBD4OPITJCKHDB2QE7OH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:DR56KAMBD4OPITJCKHDB2QE7OH","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":"142c9d42c5a9b3cde22eb099229ce7093ea2a4ff99ed20bac248bbcdb49bebe3","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1997-07-03T09:28:18Z","title_canon_sha256":"eef8b91b5359c32f626c11acd90ae9c7d0193e8e24f89f974b60970eeb2b8b57"},"schema_version":"1.0","source":{"id":"cond-mat/9707044","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9707044","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9707044v1","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9707044","created_at":"2026-05-18T01:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"DR56KAMBD4OP","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"DR56KAMBD4OPITJC","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"DR56KAMB","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:b3e81b055abbcce05cc9cae44d95ade8c2156d6f4f509b9ea2550b6de409eb86","target":"graph","created_at":"2026-05-18T01:09:20Z","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 mechanism generating a $\\lambda$-type behavior in the specific heat of a Bose gas near the critical temperature $T_c$ is discussed. It is shown to work for a general class of quasiparticle spectra, and especially, for the Bogoliubov's model of a weakly interacting Bose gas, where a temperature-dependent quasi-particle spectrum is obtained.","authors_text":"Centro de Matem\\'aticas y F\\'isica Te\\'orica, Cuba, H. Perez Rojas (Grupo de F\\'isica Te\\'orica, I. Cabrera, ICIMAF, International Centre for Theoretical Physics)","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat","submitted_at":"1997-07-03T09:28:18Z","title":"$\\lambda$-Type phase transition for a weakly interacting bose gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9707044","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":"sha256:258452aa1364a96219594c9203c5f8c07096e16d00d62a8a379ad9498e5c69f7","target":"record","created_at":"2026-05-18T01:09:20Z","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":"142c9d42c5a9b3cde22eb099229ce7093ea2a4ff99ed20bac248bbcdb49bebe3","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1997-07-03T09:28:18Z","title_canon_sha256":"eef8b91b5359c32f626c11acd90ae9c7d0193e8e24f89f974b60970eeb2b8b57"},"schema_version":"1.0","source":{"id":"cond-mat/9707044","kind":"arxiv","version":1}},"canonical_sha256":"1c7be501811f1cf44d2251c61d409f71d4396c22143c2ec0ff0ce0d5d3dccf19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c7be501811f1cf44d2251c61d409f71d4396c22143c2ec0ff0ce0d5d3dccf19","first_computed_at":"2026-05-18T01:09:20.222905Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:20.222905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h6q7AwJHRA/kcgarSYC6fYIFE9Bt6BzIy2Dl4YbS+YXFA0Yjn0ITedBX5LV6GsyY7DL3nTfUByuWfCmEFhSZDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:20.223418Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9707044","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:258452aa1364a96219594c9203c5f8c07096e16d00d62a8a379ad9498e5c69f7","sha256:b3e81b055abbcce05cc9cae44d95ade8c2156d6f4f509b9ea2550b6de409eb86"],"state_sha256":"ac500b8dc518da4edcd893dc8517e0ad7ca19a77911e7b9893f61ff9aa30a6fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wDVxFI7sI80Zns59rnCruTGr51a+l+MxTc+kBznW3oSByvTf4tGAG9e/n1Av79fVlSu9oH2GSMHEM63yl+dkBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T19:17:34.435371Z","bundle_sha256":"db61ad23914be489c97a39b2eee06c9f3b14775735e5c5ee7bd184eb7e738d53"}}