{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3KDK3TT54RXVAC6OPLOT4L2V4E","short_pith_number":"pith:3KDK3TT5","canonical_record":{"source":{"id":"1709.03498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-11T16:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"01acb74ba3df7e03b36ce8d1fa628ed65e15d4e1b656f779214e6e51775a4e75","abstract_canon_sha256":"e9879e2161c63a70a9986cba6dbf24db12303b5483a3e21dc7eee3134ffc3192"},"schema_version":"1.0"},"canonical_sha256":"da86adce7de46f500bce7add3e2f55e120e1d57b169ba8e5173c78872301a1b2","source":{"kind":"arxiv","id":"1709.03498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03498","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03498v1","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03498","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"3KDK3TT54RXV","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3KDK3TT54RXVAC6O","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3KDK3TT5","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3KDK3TT54RXVAC6OPLOT4L2V4E","target":"record","payload":{"canonical_record":{"source":{"id":"1709.03498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-11T16:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"01acb74ba3df7e03b36ce8d1fa628ed65e15d4e1b656f779214e6e51775a4e75","abstract_canon_sha256":"e9879e2161c63a70a9986cba6dbf24db12303b5483a3e21dc7eee3134ffc3192"},"schema_version":"1.0"},"canonical_sha256":"da86adce7de46f500bce7add3e2f55e120e1d57b169ba8e5173c78872301a1b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:31.418660Z","signature_b64":"T4QYbNyT+ZEf2p5DW4i9Jxqqg55u8n1sI3AAiRqNMOJhA6LvALYGRY+Sc4wVlYDVIzQjTvjpmp9m0i1XFOzSAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da86adce7de46f500bce7add3e2f55e120e1d57b169ba8e5173c78872301a1b2","last_reissued_at":"2026-05-18T00:16:31.418090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:31.418090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.03498","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":"2026-05-18T00:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FCQ6Fi05jjmfFoGV4TRcF+SB2zpoPxwt94IXzcSYuf5F+U9MW9tvtCu1PAb6DBOwUjm9RpTL6tWOU2GH/AT7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T23:06:48.754236Z"},"content_sha256":"f8d7320d8e5332381018823dc5855d2ba3da31a9d33b937e7035075017b0e621","schema_version":"1.0","event_id":"sha256:f8d7320d8e5332381018823dc5855d2ba3da31a9d33b937e7035075017b0e621"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3KDK3TT54RXVAC6OPLOT4L2V4E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrarelativistic limit of a Rarefied Gas with Internal Structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Sebastiano Pennisi, Tommaso Ruggeri","submitted_at":"2017-09-11T16:25:03Z","abstract_excerpt":"The aim of this letter is to check the ultra-relativistic limit of a recent model proposed by Pennisi and Ruggeri [Ann. Phys. 377, 414 (2017)] for a relativistic gas with internal structure. Considering an Eulerian fluid we prove that there exists a critical value of the degree of freedom such that for smaller values of this quantity the ultra relativistic limit of the energy of a gas with structure is the same as the Synge energy for monatomic gases, while for larger degrees of freedom the energy increases with the degree of freedom itself. The limiting equations are accompanied with the expl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03498","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":"2026-05-18T00:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Lmex5BihwhPH4/MtjI4s1oUTkdd751z9asBREHRiFgYLBuUjtriudyXEVpUuKMN4PYSP4D7VW3U8EsjCobGBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T23:06:48.754593Z"},"content_sha256":"63859832f0a452540c4a628fb4ab9164feeb455bc007b3bf09da4b8136bc6694","schema_version":"1.0","event_id":"sha256:63859832f0a452540c4a628fb4ab9164feeb455bc007b3bf09da4b8136bc6694"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/bundle.json","state_url":"https://pith.science/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/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":"2026-06-27T23:06:48Z","links":{"resolver":"https://pith.science/pith/3KDK3TT54RXVAC6OPLOT4L2V4E","bundle":"https://pith.science/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/bundle.json","state":"https://pith.science/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KDK3TT54RXVAC6OPLOT4L2V4E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3KDK3TT54RXVAC6OPLOT4L2V4E","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":"e9879e2161c63a70a9986cba6dbf24db12303b5483a3e21dc7eee3134ffc3192","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-11T16:25:03Z","title_canon_sha256":"01acb74ba3df7e03b36ce8d1fa628ed65e15d4e1b656f779214e6e51775a4e75"},"schema_version":"1.0","source":{"id":"1709.03498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03498","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03498v1","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03498","created_at":"2026-05-18T00:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"3KDK3TT54RXV","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3KDK3TT54RXVAC6O","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3KDK3TT5","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:63859832f0a452540c4a628fb4ab9164feeb455bc007b3bf09da4b8136bc6694","target":"graph","created_at":"2026-05-18T00:16:31Z","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 aim of this letter is to check the ultra-relativistic limit of a recent model proposed by Pennisi and Ruggeri [Ann. Phys. 377, 414 (2017)] for a relativistic gas with internal structure. Considering an Eulerian fluid we prove that there exists a critical value of the degree of freedom such that for smaller values of this quantity the ultra relativistic limit of the energy of a gas with structure is the same as the Synge energy for monatomic gases, while for larger degrees of freedom the energy increases with the degree of freedom itself. The limiting equations are accompanied with the expl","authors_text":"Sebastiano Pennisi, Tommaso Ruggeri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-11T16:25:03Z","title":"Ultrarelativistic limit of a Rarefied Gas with Internal Structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03498","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:f8d7320d8e5332381018823dc5855d2ba3da31a9d33b937e7035075017b0e621","target":"record","created_at":"2026-05-18T00:16:31Z","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":"e9879e2161c63a70a9986cba6dbf24db12303b5483a3e21dc7eee3134ffc3192","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-11T16:25:03Z","title_canon_sha256":"01acb74ba3df7e03b36ce8d1fa628ed65e15d4e1b656f779214e6e51775a4e75"},"schema_version":"1.0","source":{"id":"1709.03498","kind":"arxiv","version":1}},"canonical_sha256":"da86adce7de46f500bce7add3e2f55e120e1d57b169ba8e5173c78872301a1b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da86adce7de46f500bce7add3e2f55e120e1d57b169ba8e5173c78872301a1b2","first_computed_at":"2026-05-18T00:16:31.418090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:31.418090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T4QYbNyT+ZEf2p5DW4i9Jxqqg55u8n1sI3AAiRqNMOJhA6LvALYGRY+Sc4wVlYDVIzQjTvjpmp9m0i1XFOzSAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:31.418660Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.03498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8d7320d8e5332381018823dc5855d2ba3da31a9d33b937e7035075017b0e621","sha256:63859832f0a452540c4a628fb4ab9164feeb455bc007b3bf09da4b8136bc6694"],"state_sha256":"88e5458a86bef358b0c2126668030b8b0bb12ee67e59aa5704343a357624e221"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/8NQgytuH9Pha0DyfJsVQVDz8xxlTjtSAEHE9K8TUvSRUZCumQ9C4zSE4SKpJoVJNE3eYUKZoLnx+LFJuOd1AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T23:06:48.756511Z","bundle_sha256":"842b40885dfb93875f338ce420b46d34adb431916e17948850b78aef76b86460"}}