{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:MZVL2R4ERSR2FFD45Y5U4ZVU2R","short_pith_number":"pith:MZVL2R4E","canonical_record":{"source":{"id":"1602.07959","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2016-02-25T15:06:46Z","cross_cats_sorted":[],"title_canon_sha256":"da2f14f92f79c47d4cefe1a1b254a3eb6933932037292056b2fa8749a5e19c92","abstract_canon_sha256":"15867ef1e9afc5117b00b8621103a41f801756e17fd2d30b4dbb01d1aa8b0e93"},"schema_version":"1.0"},"canonical_sha256":"666abd47848ca3a2947cee3b4e66b4d47376756dcf3b94fab1451de352281673","source":{"kind":"arxiv","id":"1602.07959","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.07959","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"arxiv_version","alias_value":"1602.07959v3","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.07959","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"pith_short_12","alias_value":"MZVL2R4ERSR2","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MZVL2R4ERSR2FFD4","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MZVL2R4E","created_at":"2026-05-18T12:30:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:MZVL2R4ERSR2FFD45Y5U4ZVU2R","target":"record","payload":{"canonical_record":{"source":{"id":"1602.07959","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2016-02-25T15:06:46Z","cross_cats_sorted":[],"title_canon_sha256":"da2f14f92f79c47d4cefe1a1b254a3eb6933932037292056b2fa8749a5e19c92","abstract_canon_sha256":"15867ef1e9afc5117b00b8621103a41f801756e17fd2d30b4dbb01d1aa8b0e93"},"schema_version":"1.0"},"canonical_sha256":"666abd47848ca3a2947cee3b4e66b4d47376756dcf3b94fab1451de352281673","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:25.835762Z","signature_b64":"NQa/d6C95c+BtMUP816qz6CAH7Gfw5hnBCknFm2Nd16/XwizOJ8eNphCFu9sTtyWaBog7zszo8Je6/YgZR46AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"666abd47848ca3a2947cee3b4e66b4d47376756dcf3b94fab1451de352281673","last_reissued_at":"2026-05-18T01:08:25.835089Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:25.835089Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.07959","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:08:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TfX/N368NZ3FMhbTTrqIor+bwJVB876AzQ8lM3jnc/N44nk85xwHZz17eUj11HDf629H7+omJqzO3aYgAQa9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:05:11.302781Z"},"content_sha256":"e957eef7ca3ef18b6c2c3f23dacac4394f5df0bb41b63313326bb54cb9d322ac","schema_version":"1.0","event_id":"sha256:e957eef7ca3ef18b6c2c3f23dacac4394f5df0bb41b63313326bb54cb9d322ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:MZVL2R4ERSR2FFD45Y5U4ZVU2R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Configurational space continuity and free energy calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Pu Tian","submitted_at":"2016-02-25T15:06:46Z","abstract_excerpt":"Free energy is arguably the most importance function(al) for understanding of molecular systems. A number of rigorous and approximate free energy calculation/estimation methods have been developed over many decades. One important issue, the continuity of an interested macrostate (or path) in configurational space, has not been well articulated, however. As a matter of fact, some important special cases have been intensively discussed. In this perspective, I discuss the relevance of configurational space continuity in development of more efficient and reliable next generation free energy method"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.07959","kind":"arxiv","version":3},"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":"2026-05-18T01:08:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XQcfBLhMnMKS5mQspajMAo63ksz7WYBzYGr7Qy8GL/ipjF1JczXLFEZS/NjQXw9CD5jlQ+ISzIjeaiOS0DVPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:05:11.303645Z"},"content_sha256":"978e46226529c53f55b4b4a0889a0c334008751dd1e49584b5a7718ce0a0f9b6","schema_version":"1.0","event_id":"sha256:978e46226529c53f55b4b4a0889a0c334008751dd1e49584b5a7718ce0a0f9b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/bundle.json","state_url":"https://pith.science/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/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":"2026-06-01T02:05:11Z","links":{"resolver":"https://pith.science/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R","bundle":"https://pith.science/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/bundle.json","state":"https://pith.science/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MZVL2R4ERSR2FFD45Y5U4ZVU2R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MZVL2R4ERSR2FFD45Y5U4ZVU2R","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":"15867ef1e9afc5117b00b8621103a41f801756e17fd2d30b4dbb01d1aa8b0e93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2016-02-25T15:06:46Z","title_canon_sha256":"da2f14f92f79c47d4cefe1a1b254a3eb6933932037292056b2fa8749a5e19c92"},"schema_version":"1.0","source":{"id":"1602.07959","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.07959","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"arxiv_version","alias_value":"1602.07959v3","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.07959","created_at":"2026-05-18T01:08:25Z"},{"alias_kind":"pith_short_12","alias_value":"MZVL2R4ERSR2","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MZVL2R4ERSR2FFD4","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MZVL2R4E","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:978e46226529c53f55b4b4a0889a0c334008751dd1e49584b5a7718ce0a0f9b6","target":"graph","created_at":"2026-05-18T01:08:25Z","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":"Free energy is arguably the most importance function(al) for understanding of molecular systems. A number of rigorous and approximate free energy calculation/estimation methods have been developed over many decades. One important issue, the continuity of an interested macrostate (or path) in configurational space, has not been well articulated, however. As a matter of fact, some important special cases have been intensively discussed. In this perspective, I discuss the relevance of configurational space continuity in development of more efficient and reliable next generation free energy method","authors_text":"Pu Tian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2016-02-25T15:06:46Z","title":"Configurational space continuity and free energy calculations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.07959","kind":"arxiv","version":3},"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:e957eef7ca3ef18b6c2c3f23dacac4394f5df0bb41b63313326bb54cb9d322ac","target":"record","created_at":"2026-05-18T01:08:25Z","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":"15867ef1e9afc5117b00b8621103a41f801756e17fd2d30b4dbb01d1aa8b0e93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2016-02-25T15:06:46Z","title_canon_sha256":"da2f14f92f79c47d4cefe1a1b254a3eb6933932037292056b2fa8749a5e19c92"},"schema_version":"1.0","source":{"id":"1602.07959","kind":"arxiv","version":3}},"canonical_sha256":"666abd47848ca3a2947cee3b4e66b4d47376756dcf3b94fab1451de352281673","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"666abd47848ca3a2947cee3b4e66b4d47376756dcf3b94fab1451de352281673","first_computed_at":"2026-05-18T01:08:25.835089Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:25.835089Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NQa/d6C95c+BtMUP816qz6CAH7Gfw5hnBCknFm2Nd16/XwizOJ8eNphCFu9sTtyWaBog7zszo8Je6/YgZR46AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:25.835762Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.07959","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e957eef7ca3ef18b6c2c3f23dacac4394f5df0bb41b63313326bb54cb9d322ac","sha256:978e46226529c53f55b4b4a0889a0c334008751dd1e49584b5a7718ce0a0f9b6"],"state_sha256":"b91dd2ba8d9de452183d0e2fbe23f34eb0e7ef75342065c432d49c14183d4211"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FMOm9RDUmzPbfxx6GEeW3uFY7M+jHKJomUKkVB0RrlUvgfT/KL5jaHW0tO4+DiA1ggflT0Yylebmr/S+BmPXBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T02:05:11.308451Z","bundle_sha256":"f4bcf88a18243dfd12333eb94026149874e4171d9b28ca7db2d9480696d7b545"}}