{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:JN3NL2R6QCOWIMYX6UXZ24VTDQ","short_pith_number":"pith:JN3NL2R6","canonical_record":{"source":{"id":"2112.01392","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-12-02T16:21:49Z","cross_cats_sorted":["cond-mat.stat-mech","hep-lat","nucl-ex"],"title_canon_sha256":"a9169fd4022470a1ffbd00d0cf2026008c71e441a30603b6817f4758b1d53842","abstract_canon_sha256":"358a55ca22af61d55aa2511eb17bef1aada6b7fdc9dca5c6fd8d1935971a681f"},"schema_version":"1.0"},"canonical_sha256":"4b76d5ea3e809d643317f52f9d72b31c1467e08b06c3d023102563554f2df197","source":{"kind":"arxiv","id":"2112.01392","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.01392","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"arxiv_version","alias_value":"2112.01392v1","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.01392","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_12","alias_value":"JN3NL2R6QCOW","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_16","alias_value":"JN3NL2R6QCOWIMYX","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_8","alias_value":"JN3NL2R6","created_at":"2026-07-05T03:37:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:JN3NL2R6QCOWIMYX6UXZ24VTDQ","target":"record","payload":{"canonical_record":{"source":{"id":"2112.01392","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-12-02T16:21:49Z","cross_cats_sorted":["cond-mat.stat-mech","hep-lat","nucl-ex"],"title_canon_sha256":"a9169fd4022470a1ffbd00d0cf2026008c71e441a30603b6817f4758b1d53842","abstract_canon_sha256":"358a55ca22af61d55aa2511eb17bef1aada6b7fdc9dca5c6fd8d1935971a681f"},"schema_version":"1.0"},"canonical_sha256":"4b76d5ea3e809d643317f52f9d72b31c1467e08b06c3d023102563554f2df197","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:37:09.020072Z","signature_b64":"rWYraKDKSpKfEcEEmHMVfoNJa2dv+nnHHwsexzQyxRxToAc9qt2YCtRinmY35ZObGM0tFEGmpwmZc1CTofl8CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b76d5ea3e809d643317f52f9d72b31c1467e08b06c3d023102563554f2df197","last_reissued_at":"2026-07-05T03:37:09.019607Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:37:09.019607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.01392","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":"2026-07-05T03:37:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AvVvwoWR+OVdMwqp+sIL6l46X38nB5HKkBZwntyehLS6CHeC88qE3cqZdDf+BKcz8P/j03/V8k40zC8TS9BwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T14:15:42.355648Z"},"content_sha256":"e2b5e299bd65383279d74ca21bccc7ab3e45959960460196b63cf4fb6f8d6da6","schema_version":"1.0","event_id":"sha256:e2b5e299bd65383279d74ca21bccc7ab3e45959960460196b63cf4fb6f8d6da6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:JN3NL2R6QCOWIMYX6UXZ24VTDQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ab initio nuclear thermodynamics from lattice effective field theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.stat-mech","hep-lat","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Bing-Nan Lu, Dean Lee, Evgeny Epelbaum, Joaqu\\'in E. Drut, Ning Li, Serdar Elhatisari, Timo A. L\\\"ahde, Ulf-G. Mei{\\ss}ner","submitted_at":"2021-12-02T16:21:49Z","abstract_excerpt":"We show that the {\\it ab initio} calculations of nuclear thermodynamics can be performed efficiently using lattice effective field theory. The simulations use a new approach called the pinhole trace algorithm to calculate thermodynamic observables for a fixed number of protons and neutrons enclosed in a finite box. In this framework, we calculate the equation of state, the liquid-vapor coexistence line and the critical point of neutral symmetric nuclear matter with high precision. Since the algorithm uses a canonical ensemble with a fixed number of particles, it provides a sizable computationa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.01392","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.01392/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:37:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXeG1PdahqyN8eanpRAACIivU3qiZKl97RNzOS+FCIohtRs6Kuk0BzGxkmNLEpyRn6ZLYMLW15XtncTRPtgHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T14:15:42.356154Z"},"content_sha256":"8b671180408268991fd6225c3c8076b0a2acd4b1a7fd0b4863230d355da25a81","schema_version":"1.0","event_id":"sha256:8b671180408268991fd6225c3c8076b0a2acd4b1a7fd0b4863230d355da25a81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/bundle.json","state_url":"https://pith.science/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/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":"2026-08-09T14:15:42Z","links":{"resolver":"https://pith.science/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ","bundle":"https://pith.science/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/bundle.json","state":"https://pith.science/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JN3NL2R6QCOWIMYX6UXZ24VTDQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:JN3NL2R6QCOWIMYX6UXZ24VTDQ","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":"358a55ca22af61d55aa2511eb17bef1aada6b7fdc9dca5c6fd8d1935971a681f","cross_cats_sorted":["cond-mat.stat-mech","hep-lat","nucl-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-12-02T16:21:49Z","title_canon_sha256":"a9169fd4022470a1ffbd00d0cf2026008c71e441a30603b6817f4758b1d53842"},"schema_version":"1.0","source":{"id":"2112.01392","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.01392","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"arxiv_version","alias_value":"2112.01392v1","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.01392","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_12","alias_value":"JN3NL2R6QCOW","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_16","alias_value":"JN3NL2R6QCOWIMYX","created_at":"2026-07-05T03:37:09Z"},{"alias_kind":"pith_short_8","alias_value":"JN3NL2R6","created_at":"2026-07-05T03:37:09Z"}],"graph_snapshots":[{"event_id":"sha256:8b671180408268991fd6225c3c8076b0a2acd4b1a7fd0b4863230d355da25a81","target":"graph","created_at":"2026-07-05T03:37:09Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2112.01392/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that the {\\it ab initio} calculations of nuclear thermodynamics can be performed efficiently using lattice effective field theory. The simulations use a new approach called the pinhole trace algorithm to calculate thermodynamic observables for a fixed number of protons and neutrons enclosed in a finite box. In this framework, we calculate the equation of state, the liquid-vapor coexistence line and the critical point of neutral symmetric nuclear matter with high precision. Since the algorithm uses a canonical ensemble with a fixed number of particles, it provides a sizable computationa","authors_text":"Bing-Nan Lu, Dean Lee, Evgeny Epelbaum, Joaqu\\'in E. Drut, Ning Li, Serdar Elhatisari, Timo A. L\\\"ahde, Ulf-G. Mei{\\ss}ner","cross_cats":["cond-mat.stat-mech","hep-lat","nucl-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-12-02T16:21:49Z","title":"Ab initio nuclear thermodynamics from lattice effective field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.01392","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:e2b5e299bd65383279d74ca21bccc7ab3e45959960460196b63cf4fb6f8d6da6","target":"record","created_at":"2026-07-05T03:37:09Z","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":"358a55ca22af61d55aa2511eb17bef1aada6b7fdc9dca5c6fd8d1935971a681f","cross_cats_sorted":["cond-mat.stat-mech","hep-lat","nucl-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-12-02T16:21:49Z","title_canon_sha256":"a9169fd4022470a1ffbd00d0cf2026008c71e441a30603b6817f4758b1d53842"},"schema_version":"1.0","source":{"id":"2112.01392","kind":"arxiv","version":1}},"canonical_sha256":"4b76d5ea3e809d643317f52f9d72b31c1467e08b06c3d023102563554f2df197","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b76d5ea3e809d643317f52f9d72b31c1467e08b06c3d023102563554f2df197","first_computed_at":"2026-07-05T03:37:09.019607Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:37:09.019607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rWYraKDKSpKfEcEEmHMVfoNJa2dv+nnHHwsexzQyxRxToAc9qt2YCtRinmY35ZObGM0tFEGmpwmZc1CTofl8CA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:37:09.020072Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.01392","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2b5e299bd65383279d74ca21bccc7ab3e45959960460196b63cf4fb6f8d6da6","sha256:8b671180408268991fd6225c3c8076b0a2acd4b1a7fd0b4863230d355da25a81"],"state_sha256":"7aa121ce421b744658e22fdacc9008da58bc8bd1da8829a697b776b860388605"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2bv7sMt4wBkwy4ll4XdxMgfYrxVlI6/Dr2NVyAy9r40ny0bPk9H3ABGhZkjGBHrw+8UYxM9noEi0jyB+7R5bBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T14:15:42.360756Z","bundle_sha256":"dd75da5295b5f1c76b830d8832ef12846577f37c9212be573a1034433a6c6746"}}