{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:Q3PIH5RBKGIQ7QOMLCQTT4WOS4","short_pith_number":"pith:Q3PIH5RB","canonical_record":{"source":{"id":"physics/0204089","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.chem-ph","submitted_at":"2002-04-30T17:05:57Z","cross_cats_sorted":[],"title_canon_sha256":"c3e075f1ff23abce64821dca18387b8c1a43956cd24cd7b11ca5332243a9280a","abstract_canon_sha256":"10c24bf5a66f19d88aac86810d03a98f7302144e2953b80116417518c2dfaea6"},"schema_version":"1.0"},"canonical_sha256":"86de83f62151910fc1cc58a139f2ce972367f0647970dc389d132a11861474c3","source":{"kind":"arxiv","id":"physics/0204089","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0204089","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0204089v1","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0204089","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"pith_short_12","alias_value":"Q3PIH5RBKGIQ","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"Q3PIH5RBKGIQ7QOM","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"Q3PIH5RB","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:Q3PIH5RBKGIQ7QOMLCQTT4WOS4","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0204089","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.chem-ph","submitted_at":"2002-04-30T17:05:57Z","cross_cats_sorted":[],"title_canon_sha256":"c3e075f1ff23abce64821dca18387b8c1a43956cd24cd7b11ca5332243a9280a","abstract_canon_sha256":"10c24bf5a66f19d88aac86810d03a98f7302144e2953b80116417518c2dfaea6"},"schema_version":"1.0"},"canonical_sha256":"86de83f62151910fc1cc58a139f2ce972367f0647970dc389d132a11861474c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:05.286275Z","signature_b64":"/2ebFJuBw6s+9RIyb24VH5GS6yaFHuzAc7EsRPBE7R2Rl0DkrAbFT2y9IjYKcJAl2FjvliEb2jEyeZDVv2WJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86de83f62151910fc1cc58a139f2ce972367f0647970dc389d132a11861474c3","last_reissued_at":"2026-05-18T00:57:05.285743Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:05.285743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0204089","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":"2026-05-18T00:57:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P/mnYvriuNVxhKeayOhqaEhx9NhbxloOlhuYhBCoPaK5ovAOZjSrKPgDPU/pK36rDcJJb/6b7tgamVGsKNr8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:07:25.694067Z"},"content_sha256":"bffff592f85fdb2c96bc8354037e69371ae89c2aa504eeaf2c0172f74bcc1e6c","schema_version":"1.0","event_id":"sha256:bffff592f85fdb2c96bc8354037e69371ae89c2aa504eeaf2c0172f74bcc1e6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:Q3PIH5RBKGIQ7QOMLCQTT4WOS4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The finite-temperature Monte Carlo method and its application to superfluid helium clusters","license":"","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"K. Birgitta Whaley, Patrick Huang, Yongkyung Kwon","submitted_at":"2002-04-30T17:05:57Z","abstract_excerpt":"We review the use of the path integral Monte Carlo (PIMC) methodology to the study of finite-size quantum clusters, with particular emphasis on recent applications to pure and impurity-doped He clusters. We describe the principles of PIMC, the use of the multilevel Metropolis method for sampling particle permutations, and the methods used to accurately incorporate anisotropic molecule-helium interactions into the path integral scheme. Applications to spectroscopic studies of embedded atoms and molecules are summarized, with discussion of the new concepts of local and nanoscale superfluidity th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0204089","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":"2026-05-18T00:57:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ruH/jGc1yeTS0uHyQiOXC4nutvp6f2xCZcxMviPFkQubumX0vljaYLQgoEU3L+Fdj/rpSsRrtFvbzNzwpM6rDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:07:25.694780Z"},"content_sha256":"ebd453f734f4a49c80ab9b94a23dd1119444420f7d7af5bb96c28c3bd37ad06b","schema_version":"1.0","event_id":"sha256:ebd453f734f4a49c80ab9b94a23dd1119444420f7d7af5bb96c28c3bd37ad06b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/bundle.json","state_url":"https://pith.science/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/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":"2026-06-08T19:07:25Z","links":{"resolver":"https://pith.science/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4","bundle":"https://pith.science/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/bundle.json","state":"https://pith.science/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q3PIH5RBKGIQ7QOMLCQTT4WOS4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:Q3PIH5RBKGIQ7QOMLCQTT4WOS4","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":"10c24bf5a66f19d88aac86810d03a98f7302144e2953b80116417518c2dfaea6","cross_cats_sorted":[],"license":"","primary_cat":"physics.chem-ph","submitted_at":"2002-04-30T17:05:57Z","title_canon_sha256":"c3e075f1ff23abce64821dca18387b8c1a43956cd24cd7b11ca5332243a9280a"},"schema_version":"1.0","source":{"id":"physics/0204089","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0204089","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0204089v1","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0204089","created_at":"2026-05-18T00:57:05Z"},{"alias_kind":"pith_short_12","alias_value":"Q3PIH5RBKGIQ","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"Q3PIH5RBKGIQ7QOM","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"Q3PIH5RB","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:ebd453f734f4a49c80ab9b94a23dd1119444420f7d7af5bb96c28c3bd37ad06b","target":"graph","created_at":"2026-05-18T00:57:05Z","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":"We review the use of the path integral Monte Carlo (PIMC) methodology to the study of finite-size quantum clusters, with particular emphasis on recent applications to pure and impurity-doped He clusters. We describe the principles of PIMC, the use of the multilevel Metropolis method for sampling particle permutations, and the methods used to accurately incorporate anisotropic molecule-helium interactions into the path integral scheme. Applications to spectroscopic studies of embedded atoms and molecules are summarized, with discussion of the new concepts of local and nanoscale superfluidity th","authors_text":"K. Birgitta Whaley, Patrick Huang, Yongkyung Kwon","cross_cats":[],"headline":"","license":"","primary_cat":"physics.chem-ph","submitted_at":"2002-04-30T17:05:57Z","title":"The finite-temperature Monte Carlo method and its application to superfluid helium clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0204089","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:bffff592f85fdb2c96bc8354037e69371ae89c2aa504eeaf2c0172f74bcc1e6c","target":"record","created_at":"2026-05-18T00:57:05Z","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":"10c24bf5a66f19d88aac86810d03a98f7302144e2953b80116417518c2dfaea6","cross_cats_sorted":[],"license":"","primary_cat":"physics.chem-ph","submitted_at":"2002-04-30T17:05:57Z","title_canon_sha256":"c3e075f1ff23abce64821dca18387b8c1a43956cd24cd7b11ca5332243a9280a"},"schema_version":"1.0","source":{"id":"physics/0204089","kind":"arxiv","version":1}},"canonical_sha256":"86de83f62151910fc1cc58a139f2ce972367f0647970dc389d132a11861474c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86de83f62151910fc1cc58a139f2ce972367f0647970dc389d132a11861474c3","first_computed_at":"2026-05-18T00:57:05.285743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:05.285743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/2ebFJuBw6s+9RIyb24VH5GS6yaFHuzAc7EsRPBE7R2Rl0DkrAbFT2y9IjYKcJAl2FjvliEb2jEyeZDVv2WJCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:05.286275Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0204089","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bffff592f85fdb2c96bc8354037e69371ae89c2aa504eeaf2c0172f74bcc1e6c","sha256:ebd453f734f4a49c80ab9b94a23dd1119444420f7d7af5bb96c28c3bd37ad06b"],"state_sha256":"cc70e70bb3e68089cef7b744c1e5565cbc249e5e6f9f9accfd5e3b92c7335f0a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EYzFohWvoWnNXuvetpucCMW/9ULYx2jlAZRTwQGV1ltCsT4FJ6HsUZYyLwFXe6xpHKLiai0Wfua6FWSgQRGnCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:07:25.698289Z","bundle_sha256":"8f8e8ea58d912e242d4f29e8cada428a34365d41aff1068d890b09bbeefb6b22"}}