{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YW4WJAPLH5M4ZD5K2E2CVNQHAU","short_pith_number":"pith:YW4WJAPL","canonical_record":{"source":{"id":"2302.05332","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2023-02-08T19:19:13Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"f5e9e14d5e7d5ff8c093466356cf46ff6870022cf27f5a36ffdfd27720dd5a87","abstract_canon_sha256":"3ce170357b592468b980acb5eeb6d1ec9c679cfdf12409eb7e6c84032a116418"},"schema_version":"1.0"},"canonical_sha256":"c5b96481eb3f59cc8faad1342ab607053f3214fdad669ddae8380e5f87e1b1ca","source":{"kind":"arxiv","id":"2302.05332","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.05332","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"arxiv_version","alias_value":"2302.05332v2","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.05332","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_12","alias_value":"YW4WJAPLH5M4","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"YW4WJAPLH5M4ZD5K","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"YW4WJAPL","created_at":"2026-07-05T08:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YW4WJAPLH5M4ZD5K2E2CVNQHAU","target":"record","payload":{"canonical_record":{"source":{"id":"2302.05332","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2023-02-08T19:19:13Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"f5e9e14d5e7d5ff8c093466356cf46ff6870022cf27f5a36ffdfd27720dd5a87","abstract_canon_sha256":"3ce170357b592468b980acb5eeb6d1ec9c679cfdf12409eb7e6c84032a116418"},"schema_version":"1.0"},"canonical_sha256":"c5b96481eb3f59cc8faad1342ab607053f3214fdad669ddae8380e5f87e1b1ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:25:48.092919Z","signature_b64":"u5bZu0qXtmcJOiRS8+L2J2U84DR/5i6F2qAISz3l229fHria0jPLqjyK1N8rDeTRislLuQB0GWn4bK6qykY/BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5b96481eb3f59cc8faad1342ab607053f3214fdad669ddae8380e5f87e1b1ca","last_reissued_at":"2026-07-05T08:25:48.092517Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:25:48.092517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.05332","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":"2026-07-05T08:25:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x4T4k+acafus1XMxUtOVHcGoywfsUh6Cw5WrL7JJop5YbQ3ExnYns+rpegJwcbdQkkmVEo1EvYjwTa1TcM/kAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:37:12.966422Z"},"content_sha256":"c624e55a16b401317d233e2c69bdd01d85abb712767cc24bb4028ed536e9647d","schema_version":"1.0","event_id":"sha256:c624e55a16b401317d233e2c69bdd01d85abb712767cc24bb4028ed536e9647d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YW4WJAPLH5M4ZD5K2E2CVNQHAU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Universality Classes of Relativistic Fluid Dynamics: Applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"nucl-th","authors_text":"J. Noronha, L. Gavassino, M. M. Disconzi","submitted_at":"2023-02-08T19:19:13Z","abstract_excerpt":"Using a formalism that was recently developed in a companion paper, we rigorously prove the equivalence, in the linear regime, of a number of apparently different relativistic hydrodynamic theories proposed in the literature. In particular, we show that Hydro+ is indistinguishable from the Israel-Stewart theory for bulk viscosity, which in turn is indistinguishable from a reacting mixture. The two-fluid model for superfluidity coincides with the Israel-Stewart theory for heat conduction in the limit of infinite conductivity, and this explains why the latter has a second sound. Also, MIS$^*$ is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.05332","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.05332/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":"2026-07-05T08:25:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e4KYOOxF6J3XYHVzo0gNNNU4ZqkmH0OsD84pu3VClgvhYJhVuD1RW9OOtUzje0CN+0SgWccr8ZHc7KEKGD5LCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:37:12.966984Z"},"content_sha256":"47b743cdc291fb35c9c5fa6c41c13c74b487838dd93fc3e01361a8aa98db7ce4","schema_version":"1.0","event_id":"sha256:47b743cdc291fb35c9c5fa6c41c13c74b487838dd93fc3e01361a8aa98db7ce4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/bundle.json","state_url":"https://pith.science/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/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":"2026-08-03T22:37:12Z","links":{"resolver":"https://pith.science/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU","bundle":"https://pith.science/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/bundle.json","state":"https://pith.science/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YW4WJAPLH5M4ZD5K2E2CVNQHAU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YW4WJAPLH5M4ZD5K2E2CVNQHAU","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":"3ce170357b592468b980acb5eeb6d1ec9c679cfdf12409eb7e6c84032a116418","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2023-02-08T19:19:13Z","title_canon_sha256":"f5e9e14d5e7d5ff8c093466356cf46ff6870022cf27f5a36ffdfd27720dd5a87"},"schema_version":"1.0","source":{"id":"2302.05332","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.05332","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"arxiv_version","alias_value":"2302.05332v2","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.05332","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_12","alias_value":"YW4WJAPLH5M4","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"YW4WJAPLH5M4ZD5K","created_at":"2026-07-05T08:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"YW4WJAPL","created_at":"2026-07-05T08:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:47b743cdc291fb35c9c5fa6c41c13c74b487838dd93fc3e01361a8aa98db7ce4","target":"graph","created_at":"2026-07-05T08:25:48Z","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/2302.05332/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using a formalism that was recently developed in a companion paper, we rigorously prove the equivalence, in the linear regime, of a number of apparently different relativistic hydrodynamic theories proposed in the literature. In particular, we show that Hydro+ is indistinguishable from the Israel-Stewart theory for bulk viscosity, which in turn is indistinguishable from a reacting mixture. The two-fluid model for superfluidity coincides with the Israel-Stewart theory for heat conduction in the limit of infinite conductivity, and this explains why the latter has a second sound. Also, MIS$^*$ is","authors_text":"J. Noronha, L. Gavassino, M. M. Disconzi","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2023-02-08T19:19:13Z","title":"Universality Classes of Relativistic Fluid Dynamics: Applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.05332","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:c624e55a16b401317d233e2c69bdd01d85abb712767cc24bb4028ed536e9647d","target":"record","created_at":"2026-07-05T08:25:48Z","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":"3ce170357b592468b980acb5eeb6d1ec9c679cfdf12409eb7e6c84032a116418","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2023-02-08T19:19:13Z","title_canon_sha256":"f5e9e14d5e7d5ff8c093466356cf46ff6870022cf27f5a36ffdfd27720dd5a87"},"schema_version":"1.0","source":{"id":"2302.05332","kind":"arxiv","version":2}},"canonical_sha256":"c5b96481eb3f59cc8faad1342ab607053f3214fdad669ddae8380e5f87e1b1ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5b96481eb3f59cc8faad1342ab607053f3214fdad669ddae8380e5f87e1b1ca","first_computed_at":"2026-07-05T08:25:48.092517Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:25:48.092517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u5bZu0qXtmcJOiRS8+L2J2U84DR/5i6F2qAISz3l229fHria0jPLqjyK1N8rDeTRislLuQB0GWn4bK6qykY/BA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:25:48.092919Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.05332","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c624e55a16b401317d233e2c69bdd01d85abb712767cc24bb4028ed536e9647d","sha256:47b743cdc291fb35c9c5fa6c41c13c74b487838dd93fc3e01361a8aa98db7ce4"],"state_sha256":"f678a0117592c957d837fdbfa0276cff65ae463dedf95fba3b3e5718210958d3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w6Lw91n4jzn7rfum8NBzfrdH3e3bxNAo/oJ8GNiuwq82dc9i3gQjaEGDiHyQ/Auqg5FBv40UfcKxFbwl321WAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T22:37:12.971508Z","bundle_sha256":"a1d8828f3f07d7c125ee6791c05b3efcef8d29afd46d1ccb91d64ef21bfb1538"}}