{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:O5UUZWHT6EFDHU64NHX7AVHADY","short_pith_number":"pith:O5UUZWHT","canonical_record":{"source":{"id":"1512.07464","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2015-12-23T13:25:22Z","cross_cats_sorted":[],"title_canon_sha256":"08afe31d8226ef212437f56f4fb5c9bcec245cc255015195a4ac395eecb04ad0","abstract_canon_sha256":"f05a3c57119b7c8011d4d2dde61adf0e6c52efe91670915495dc0d0ba4334bd2"},"schema_version":"1.0"},"canonical_sha256":"77694cd8f3f10a33d3dc69eff054e01e2564e872f05f623b5f3f1971ab9632cc","source":{"kind":"arxiv","id":"1512.07464","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07464","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07464v2","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07464","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"pith_short_12","alias_value":"O5UUZWHT6EFD","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O5UUZWHT6EFDHU64","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O5UUZWHT","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:O5UUZWHT6EFDHU64NHX7AVHADY","target":"record","payload":{"canonical_record":{"source":{"id":"1512.07464","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2015-12-23T13:25:22Z","cross_cats_sorted":[],"title_canon_sha256":"08afe31d8226ef212437f56f4fb5c9bcec245cc255015195a4ac395eecb04ad0","abstract_canon_sha256":"f05a3c57119b7c8011d4d2dde61adf0e6c52efe91670915495dc0d0ba4334bd2"},"schema_version":"1.0"},"canonical_sha256":"77694cd8f3f10a33d3dc69eff054e01e2564e872f05f623b5f3f1971ab9632cc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:25.050369Z","signature_b64":"074WhHM6FCr7XZ2DlMqKyhCync52cE50MDydE6noy9mmj4f53kxN3R7z90cJz1BjiKTsGEfuzwmys34wgvQkBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77694cd8f3f10a33d3dc69eff054e01e2564e872f05f623b5f3f1971ab9632cc","last_reissued_at":"2026-05-18T00:44:25.049907Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:25.049907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.07464","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":"2026-05-18T00:44:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4u989vuUdL1crGkpehkGeH+kW0YUMas7vcvW1Uvw3i480ke+tEHHhk9dplBb6qXL1v3/5Pl5Y7smAAqyQjcXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:50:36.197277Z"},"content_sha256":"a76e7f5a65fc9397abab9c3caadaf92586b76433d6f823e267af2e1310913bda","schema_version":"1.0","event_id":"sha256:a76e7f5a65fc9397abab9c3caadaf92586b76433d6f823e267af2e1310913bda"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:O5UUZWHT6EFDHU64NHX7AVHADY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiple scales approach to the Gas-Piston non-equilibrium themodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"D. Chiuchi\\`u, G. Gubbiotti","submitted_at":"2015-12-23T13:25:22Z","abstract_excerpt":"The non-equilibrium thermodynamics of a gas inside a piston is a conceptually simple problem where analytic results are rare. For example, it is hard to find in the literature analytic formulas that describe the heat exchanged with the reservoir when the system either relaxes to equilibrium or is compressed over a finite time. In this paper we derive such kind of analytic formulas. To achieve this result, we take the equations derived by Cerino \\textit{et al.} [Phys. Rev. E \\textbf{91}, 032128] describing the dynamic evolution of a gas-piston system, we cast them in a dimensionless form and we"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07464","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":"2026-05-18T00:44:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ryvQgeizGd9WVojASdZPOsjeCakQAenvg4Bq+Mgv5C0mKE97pKMbPYQr7ldXMY9Caqww1xhgw0Np3BT3Th0aDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:50:36.197645Z"},"content_sha256":"4d45621096dcd7ebc23c8b4d4bda31cb309448b4ebdd4cc71d198369260f42ba","schema_version":"1.0","event_id":"sha256:4d45621096dcd7ebc23c8b4d4bda31cb309448b4ebdd4cc71d198369260f42ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O5UUZWHT6EFDHU64NHX7AVHADY/bundle.json","state_url":"https://pith.science/pith/O5UUZWHT6EFDHU64NHX7AVHADY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O5UUZWHT6EFDHU64NHX7AVHADY/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":"2026-05-28T07:50:36Z","links":{"resolver":"https://pith.science/pith/O5UUZWHT6EFDHU64NHX7AVHADY","bundle":"https://pith.science/pith/O5UUZWHT6EFDHU64NHX7AVHADY/bundle.json","state":"https://pith.science/pith/O5UUZWHT6EFDHU64NHX7AVHADY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O5UUZWHT6EFDHU64NHX7AVHADY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:O5UUZWHT6EFDHU64NHX7AVHADY","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":"f05a3c57119b7c8011d4d2dde61adf0e6c52efe91670915495dc0d0ba4334bd2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2015-12-23T13:25:22Z","title_canon_sha256":"08afe31d8226ef212437f56f4fb5c9bcec245cc255015195a4ac395eecb04ad0"},"schema_version":"1.0","source":{"id":"1512.07464","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07464","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07464v2","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07464","created_at":"2026-05-18T00:44:25Z"},{"alias_kind":"pith_short_12","alias_value":"O5UUZWHT6EFD","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O5UUZWHT6EFDHU64","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O5UUZWHT","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:4d45621096dcd7ebc23c8b4d4bda31cb309448b4ebdd4cc71d198369260f42ba","target":"graph","created_at":"2026-05-18T00:44:25Z","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":"The non-equilibrium thermodynamics of a gas inside a piston is a conceptually simple problem where analytic results are rare. For example, it is hard to find in the literature analytic formulas that describe the heat exchanged with the reservoir when the system either relaxes to equilibrium or is compressed over a finite time. In this paper we derive such kind of analytic formulas. To achieve this result, we take the equations derived by Cerino \\textit{et al.} [Phys. Rev. E \\textbf{91}, 032128] describing the dynamic evolution of a gas-piston system, we cast them in a dimensionless form and we","authors_text":"D. Chiuchi\\`u, G. Gubbiotti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2015-12-23T13:25:22Z","title":"Multiple scales approach to the Gas-Piston non-equilibrium themodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07464","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:a76e7f5a65fc9397abab9c3caadaf92586b76433d6f823e267af2e1310913bda","target":"record","created_at":"2026-05-18T00:44:25Z","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":"f05a3c57119b7c8011d4d2dde61adf0e6c52efe91670915495dc0d0ba4334bd2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2015-12-23T13:25:22Z","title_canon_sha256":"08afe31d8226ef212437f56f4fb5c9bcec245cc255015195a4ac395eecb04ad0"},"schema_version":"1.0","source":{"id":"1512.07464","kind":"arxiv","version":2}},"canonical_sha256":"77694cd8f3f10a33d3dc69eff054e01e2564e872f05f623b5f3f1971ab9632cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77694cd8f3f10a33d3dc69eff054e01e2564e872f05f623b5f3f1971ab9632cc","first_computed_at":"2026-05-18T00:44:25.049907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:25.049907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"074WhHM6FCr7XZ2DlMqKyhCync52cE50MDydE6noy9mmj4f53kxN3R7z90cJz1BjiKTsGEfuzwmys34wgvQkBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:25.050369Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.07464","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a76e7f5a65fc9397abab9c3caadaf92586b76433d6f823e267af2e1310913bda","sha256:4d45621096dcd7ebc23c8b4d4bda31cb309448b4ebdd4cc71d198369260f42ba"],"state_sha256":"e070b592cc22d51fcbc943bb0fd204fd30863e1f8ad78bcab6722b786b775121"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K682UZxULA1RoBYyVa1zYe9XDRpa8zjg1Gbbk9K8PYFHxl8HbElgyuLNKOegT/JxJj7PbuM9YG95ZuF/sLlNCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:50:36.199625Z","bundle_sha256":"03c8702382d845f64eae2f861e739ed0deeebcfb0f74f59f1da678a9c7b0b224"}}