{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:OJK3HPAIF2HPEHGEPQ2R7OLKV4","short_pith_number":"pith:OJK3HPAI","canonical_record":{"source":{"id":"1810.10432","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2018-10-24T15:00:19Z","cross_cats_sorted":[],"title_canon_sha256":"88793a25c255d13b334fe94d9407a555d6490df23f77190e1f8b9e1a8cdd0973","abstract_canon_sha256":"9737c44324c9628c22abc7e1bdf92bde36f2b1f430e1c8562a764f06182ff75d"},"schema_version":"1.0"},"canonical_sha256":"7255b3bc082e8ef21cc47c351fb96aaf07c5aadcad674828ac084dbc6dc57b94","source":{"kind":"arxiv","id":"1810.10432","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.10432","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"arxiv_version","alias_value":"1810.10432v2","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10432","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"pith_short_12","alias_value":"OJK3HPAIF2HP","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJK3HPAIF2HPEHGE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJK3HPAI","created_at":"2026-05-18T12:32:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:OJK3HPAIF2HPEHGEPQ2R7OLKV4","target":"record","payload":{"canonical_record":{"source":{"id":"1810.10432","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2018-10-24T15:00:19Z","cross_cats_sorted":[],"title_canon_sha256":"88793a25c255d13b334fe94d9407a555d6490df23f77190e1f8b9e1a8cdd0973","abstract_canon_sha256":"9737c44324c9628c22abc7e1bdf92bde36f2b1f430e1c8562a764f06182ff75d"},"schema_version":"1.0"},"canonical_sha256":"7255b3bc082e8ef21cc47c351fb96aaf07c5aadcad674828ac084dbc6dc57b94","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:10.678401Z","signature_b64":"LtYywz0Tf8DEayMETyk2ZDyzMZte9P8KWIb/43rH7vejZvG3OHG7ml/MMuVxwOPI1EcxV4o2qd1GiF0IogqMAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7255b3bc082e8ef21cc47c351fb96aaf07c5aadcad674828ac084dbc6dc57b94","last_reissued_at":"2026-05-17T23:54:10.677854Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:10.677854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.10432","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":"2026-05-17T23:54:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2HKd6Mp32k47rbJxYgD/h1FS84jF1fR5Pkmzu/2is40Zyjz7Z8a5o3gBDhrS1eyi0JYzer/MuCI9wCVHooSQDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:53:12.317886Z"},"content_sha256":"581cab8960e59e9e010a4374190d23cee007c3b001dfed34b5b85d789564bbf5","schema_version":"1.0","event_id":"sha256:581cab8960e59e9e010a4374190d23cee007c3b001dfed34b5b85d789564bbf5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:OJK3HPAIF2HPEHGEPQ2R7OLKV4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermodynamics of adiabatic melting of solid $^4 \\mathrm{He}$ in liquid $^3 \\mathrm{He}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"A. P. Sebedash, J. T. Tuoriniemi, T. S. Riekki","submitted_at":"2018-10-24T15:00:19Z","abstract_excerpt":"In the cooling concept by adiabatic melting, solid $^{4}$He is converted to liquid and mixed with $^{3}$He to produce cooling power directly in the liquid phase. This method overcomes the thermal boundary resistance that conventionally limits the lowest available temperatures in the helium fluids, and hence makes it possible to reach for the temperatures significantly below 100 $\\mu$K. In this paper we focus on the thermodynamics of the melting process, and examine the factors affecting the lowest temperatures achievable. We show that the amount of $^{3}$He-$^{4}$He mixture in the initial stat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10432","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":""},"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":"2026-05-17T23:54:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xj0luotQst053qyjpW/RaWeE4ZBKYmSHt1gcp9Srw21Y4OyL4API1JfXdr/DX+QWzpbWROoj5n4S0TrIa80OAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:53:12.318564Z"},"content_sha256":"2a2b91240c892188d8fd377ab4d0e19156e64beb73b0f5190fef70916144e589","schema_version":"1.0","event_id":"sha256:2a2b91240c892188d8fd377ab4d0e19156e64beb73b0f5190fef70916144e589"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/bundle.json","state_url":"https://pith.science/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/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":"2026-05-31T11:53:12Z","links":{"resolver":"https://pith.science/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4","bundle":"https://pith.science/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/bundle.json","state":"https://pith.science/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJK3HPAIF2HPEHGEPQ2R7OLKV4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OJK3HPAIF2HPEHGEPQ2R7OLKV4","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":"9737c44324c9628c22abc7e1bdf92bde36f2b1f430e1c8562a764f06182ff75d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2018-10-24T15:00:19Z","title_canon_sha256":"88793a25c255d13b334fe94d9407a555d6490df23f77190e1f8b9e1a8cdd0973"},"schema_version":"1.0","source":{"id":"1810.10432","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.10432","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"arxiv_version","alias_value":"1810.10432v2","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10432","created_at":"2026-05-17T23:54:10Z"},{"alias_kind":"pith_short_12","alias_value":"OJK3HPAIF2HP","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJK3HPAIF2HPEHGE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJK3HPAI","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:2a2b91240c892188d8fd377ab4d0e19156e64beb73b0f5190fef70916144e589","target":"graph","created_at":"2026-05-17T23:54:10Z","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":"In the cooling concept by adiabatic melting, solid $^{4}$He is converted to liquid and mixed with $^{3}$He to produce cooling power directly in the liquid phase. This method overcomes the thermal boundary resistance that conventionally limits the lowest available temperatures in the helium fluids, and hence makes it possible to reach for the temperatures significantly below 100 $\\mu$K. In this paper we focus on the thermodynamics of the melting process, and examine the factors affecting the lowest temperatures achievable. We show that the amount of $^{3}$He-$^{4}$He mixture in the initial stat","authors_text":"A. P. Sebedash, J. T. Tuoriniemi, T. S. Riekki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2018-10-24T15:00:19Z","title":"Thermodynamics of adiabatic melting of solid $^4 \\mathrm{He}$ in liquid $^3 \\mathrm{He}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10432","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":"sha256:581cab8960e59e9e010a4374190d23cee007c3b001dfed34b5b85d789564bbf5","target":"record","created_at":"2026-05-17T23:54:10Z","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":"9737c44324c9628c22abc7e1bdf92bde36f2b1f430e1c8562a764f06182ff75d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2018-10-24T15:00:19Z","title_canon_sha256":"88793a25c255d13b334fe94d9407a555d6490df23f77190e1f8b9e1a8cdd0973"},"schema_version":"1.0","source":{"id":"1810.10432","kind":"arxiv","version":2}},"canonical_sha256":"7255b3bc082e8ef21cc47c351fb96aaf07c5aadcad674828ac084dbc6dc57b94","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7255b3bc082e8ef21cc47c351fb96aaf07c5aadcad674828ac084dbc6dc57b94","first_computed_at":"2026-05-17T23:54:10.677854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:10.677854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LtYywz0Tf8DEayMETyk2ZDyzMZte9P8KWIb/43rH7vejZvG3OHG7ml/MMuVxwOPI1EcxV4o2qd1GiF0IogqMAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:10.678401Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.10432","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:581cab8960e59e9e010a4374190d23cee007c3b001dfed34b5b85d789564bbf5","sha256:2a2b91240c892188d8fd377ab4d0e19156e64beb73b0f5190fef70916144e589"],"state_sha256":"2ba1e7869b49af8c4098c87dbd47a27421f15920f5fcdec3be074d93504e7cdd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"epTOwgWe60AJqshjmVNyV987Nv9rvhMLST42ffkSW9rS08MQbOX/HDIMgxrYIABKCcqAs4Q/FE3a9SDNAsA0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T11:53:12.322275Z","bundle_sha256":"08bb7db16bd13e67dce59d4a74976eee6722fb0ac07e28163164ff11a0f0264f"}}