{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:SQTAEG3X4ATQFOBWCUKRB3JG7H","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":"6256cfd5750f33a32917c7bda11bf5bc974064d6e303b49c429c5866c195a0c3","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-12-21T15:24:26Z","title_canon_sha256":"159bd17adbdb84801804678ba2c8f04b917b089acb8b733a104d426571adae6d"},"schema_version":"1.0","source":{"id":"2012.11422","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.11422","created_at":"2026-07-05T02:46:01Z"},{"alias_kind":"arxiv_version","alias_value":"2012.11422v3","created_at":"2026-07-05T02:46:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.11422","created_at":"2026-07-05T02:46:01Z"},{"alias_kind":"pith_short_12","alias_value":"SQTAEG3X4ATQ","created_at":"2026-07-05T02:46:01Z"},{"alias_kind":"pith_short_16","alias_value":"SQTAEG3X4ATQFOBW","created_at":"2026-07-05T02:46:01Z"},{"alias_kind":"pith_short_8","alias_value":"SQTAEG3X","created_at":"2026-07-05T02:46:01Z"}],"graph_snapshots":[{"event_id":"sha256:0eae76a5ec44087080acc702cbeccdfa2a1c378bfe395a113e8735d717378da0","target":"graph","created_at":"2026-07-05T02:46:01Z","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/2012.11422/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the impact of the viscous effects of the primordial plasma on the evolution of the primordial gravitational waves (pGW) spectrum from Inflation until today, considering a self-consistent interaction that incorporates the back-reaction of the GW into the plasma. We use a relativistic causal hydrodynamic framework with a positive entropy production based on a Second-Order Theory (SOT) in which the viscous properties of the fluid are effectively described by a new set of independent variables. We study how the spin-2 modes typical of SOTs capture the simplest GW-fluid viscous interaction","authors_text":"Nahuel Mir\\'on-Granese","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-12-21T15:24:26Z","title":"Relativistic viscous effects on the primordial gravitational waves spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.11422","kind":"arxiv","version":3},"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":"sha256:6bfce03e83e1bee33f5a22ff1c3ec4827d9828fbb1dc70b793edd461bde29f26","target":"record","created_at":"2026-07-05T02:46:01Z","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":"6256cfd5750f33a32917c7bda11bf5bc974064d6e303b49c429c5866c195a0c3","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-12-21T15:24:26Z","title_canon_sha256":"159bd17adbdb84801804678ba2c8f04b917b089acb8b733a104d426571adae6d"},"schema_version":"1.0","source":{"id":"2012.11422","kind":"arxiv","version":3}},"canonical_sha256":"9426021b77e02702b836151510ed26f9f5b20971bbf16260679511bef0f6bb58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9426021b77e02702b836151510ed26f9f5b20971bbf16260679511bef0f6bb58","first_computed_at":"2026-07-05T02:46:01.874400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:46:01.874400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PUEEKIrNO72U3IoP3CE5ce8k5oF3VzTRnze0X7KNADFARGT1SkdxJyI1Ar8AwVSkshPVyN5bhv+I2TlbCCQNCw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:46:01.874854Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.11422","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6bfce03e83e1bee33f5a22ff1c3ec4827d9828fbb1dc70b793edd461bde29f26","sha256:0eae76a5ec44087080acc702cbeccdfa2a1c378bfe395a113e8735d717378da0"],"state_sha256":"e69afdca8fca51b93c17100eb2f958782f4681e0bd1eb416688a23241d843934"}