{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:LKMFGCDVYD77PSAOIWYUBO4NUL","short_pith_number":"pith:LKMFGCDV","canonical_record":{"source":{"id":"2607.13833","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-07-15T13:42:39Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"9fb8f2acab7ac927bab8db71ba676f0d6182263a145d043ee721c6a68f19305d","abstract_canon_sha256":"edbe09b342bbaab266fe513ece323a25956db81acb0818d71df10cd7b1a86d4c"},"schema_version":"1.0"},"canonical_sha256":"5a98530875c0fff7c80e45b140bb8da2cc2e56cef7c8ef46745043a6ce5b8e8e","source":{"kind":"arxiv","id":"2607.13833","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13833","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13833v1","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13833","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_12","alias_value":"LKMFGCDVYD77","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_16","alias_value":"LKMFGCDVYD77PSAO","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_8","alias_value":"LKMFGCDV","created_at":"2026-07-16T01:23:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:LKMFGCDVYD77PSAOIWYUBO4NUL","target":"record","payload":{"canonical_record":{"source":{"id":"2607.13833","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-07-15T13:42:39Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"9fb8f2acab7ac927bab8db71ba676f0d6182263a145d043ee721c6a68f19305d","abstract_canon_sha256":"edbe09b342bbaab266fe513ece323a25956db81acb0818d71df10cd7b1a86d4c"},"schema_version":"1.0"},"canonical_sha256":"5a98530875c0fff7c80e45b140bb8da2cc2e56cef7c8ef46745043a6ce5b8e8e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-16T01:23:08.750003Z","signature_b64":"W052k9+BRAy7ih8+vrlST5SoZi5nHU+JupP/hjs/fEapF43GDaS6L4MSln5M6zB9FdCNRo1n3hXegd+d+YufAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a98530875c0fff7c80e45b140bb8da2cc2e56cef7c8ef46745043a6ce5b8e8e","last_reissued_at":"2026-07-16T01:23:08.749162Z","signature_status":"signed_v1","first_computed_at":"2026-07-16T01:23:08.749162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.13833","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":"2026-07-16T01:23:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/z1atfu3Ir7ZRaV7O6FN+32Azy5eG96SyJLy2UDunBz9UbBUlGVdmFDW0vG0oggZo3NRdmSiaM72iVGO1Y/uBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:12:33.235087Z"},"content_sha256":"4625efe3093b9e552256ab100866b3660ed49a93c54737c2060724777823c37d","schema_version":"1.0","event_id":"sha256:4625efe3093b9e552256ab100866b3660ed49a93c54737c2060724777823c37d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:LKMFGCDVYD77PSAOIWYUBO4NUL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cooling rate and glassy behavior in the Fermi--Pasta--Ulam system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"cond-mat.stat-mech","authors_text":"Andrea Carati, Luigi Galgani, Matteo Razza","submitted_at":"2026-07-15T13:42:39Z","abstract_excerpt":"In this work, we numerically studied the cooling process of a Fermi--Pasta--Ulam system, which occurs when the FPU system is placed in contact with a gas whose temperature $T$ is reduced with a certain cooling rate $\\xi$. It was found that the existence of a weak stochastic threshold has a significant impact on the cooling process, because below such a stochastic threshold the specific FPU energy is larger than its temperature, i.e., the FPU system falls out of equilibrium. The difference remains finite in the limit $T \\to 0$, so that the FPU system maintains a residual amount of energy $E_0$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13833","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/2607.13833/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":"2026-07-16T01:23:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"76NwiIehGbtLpSNdYus+Gh4kxwLzlhvN9yGqrzncW5OsHuuqTz1ifqwgQGY0se8SHcelgn4QgYU5dqG3sIjeDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:12:33.236073Z"},"content_sha256":"b85254d2526ca6819ea5ff8588aff492f20c1f18f04de41cfa093a5d245675dd","schema_version":"1.0","event_id":"sha256:b85254d2526ca6819ea5ff8588aff492f20c1f18f04de41cfa093a5d245675dd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/bundle.json","state_url":"https://pith.science/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/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":"2026-08-04T06:12:33Z","links":{"resolver":"https://pith.science/pith/LKMFGCDVYD77PSAOIWYUBO4NUL","bundle":"https://pith.science/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/bundle.json","state":"https://pith.science/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LKMFGCDVYD77PSAOIWYUBO4NUL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:LKMFGCDVYD77PSAOIWYUBO4NUL","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":"edbe09b342bbaab266fe513ece323a25956db81acb0818d71df10cd7b1a86d4c","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-07-15T13:42:39Z","title_canon_sha256":"9fb8f2acab7ac927bab8db71ba676f0d6182263a145d043ee721c6a68f19305d"},"schema_version":"1.0","source":{"id":"2607.13833","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13833","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13833v1","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13833","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_12","alias_value":"LKMFGCDVYD77","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_16","alias_value":"LKMFGCDVYD77PSAO","created_at":"2026-07-16T01:23:08Z"},{"alias_kind":"pith_short_8","alias_value":"LKMFGCDV","created_at":"2026-07-16T01:23:08Z"}],"graph_snapshots":[{"event_id":"sha256:b85254d2526ca6819ea5ff8588aff492f20c1f18f04de41cfa093a5d245675dd","target":"graph","created_at":"2026-07-16T01:23:08Z","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/2607.13833/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we numerically studied the cooling process of a Fermi--Pasta--Ulam system, which occurs when the FPU system is placed in contact with a gas whose temperature $T$ is reduced with a certain cooling rate $\\xi$. It was found that the existence of a weak stochastic threshold has a significant impact on the cooling process, because below such a stochastic threshold the specific FPU energy is larger than its temperature, i.e., the FPU system falls out of equilibrium. The difference remains finite in the limit $T \\to 0$, so that the FPU system maintains a residual amount of energy $E_0$ ","authors_text":"Andrea Carati, Luigi Galgani, Matteo Razza","cross_cats":["physics.class-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-07-15T13:42:39Z","title":"Cooling rate and glassy behavior in the Fermi--Pasta--Ulam system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13833","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":"sha256:4625efe3093b9e552256ab100866b3660ed49a93c54737c2060724777823c37d","target":"record","created_at":"2026-07-16T01:23:08Z","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":"edbe09b342bbaab266fe513ece323a25956db81acb0818d71df10cd7b1a86d4c","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-07-15T13:42:39Z","title_canon_sha256":"9fb8f2acab7ac927bab8db71ba676f0d6182263a145d043ee721c6a68f19305d"},"schema_version":"1.0","source":{"id":"2607.13833","kind":"arxiv","version":1}},"canonical_sha256":"5a98530875c0fff7c80e45b140bb8da2cc2e56cef7c8ef46745043a6ce5b8e8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a98530875c0fff7c80e45b140bb8da2cc2e56cef7c8ef46745043a6ce5b8e8e","first_computed_at":"2026-07-16T01:23:08.749162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-16T01:23:08.749162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W052k9+BRAy7ih8+vrlST5SoZi5nHU+JupP/hjs/fEapF43GDaS6L4MSln5M6zB9FdCNRo1n3hXegd+d+YufAg==","signature_status":"signed_v1","signed_at":"2026-07-16T01:23:08.750003Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.13833","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4625efe3093b9e552256ab100866b3660ed49a93c54737c2060724777823c37d","sha256:b85254d2526ca6819ea5ff8588aff492f20c1f18f04de41cfa093a5d245675dd"],"state_sha256":"e02c4a1b31126ce3b36aca54bd5d597c1d66894c33cca2c59f15477dadf45ddc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MvFJz1njpHiNpMeeACgDQJ1rdS+JYkND5iVABsBAJkn8WZyXaipLyO/364gCF8Ce81FGiNBrKn6DoxWcqsAqBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T06:12:33.243956Z","bundle_sha256":"3a7680e7374079866e2fabdb4a352b04059aa1af42059f46d8379dc234e14d30"}}