{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:EJUACOJCOQRSDL2WA4DUCRWF4Z","short_pith_number":"pith:EJUACOJC","canonical_record":{"source":{"id":"2012.15393","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T01:48:18Z","cross_cats_sorted":["nucl-th","physics.flu-dyn"],"title_canon_sha256":"4597160a66bfb0887576c3de5306b9f50aea9e7ce811e5bf35538d3f305fa29e","abstract_canon_sha256":"87b2fabf103cc9e63d8b9e82bfd1f1fed4e1c4b1d24363e51e58110ec8ed6870"},"schema_version":"1.0"},"canonical_sha256":"2268013922742321af5607074146c5e64672911b83e8d1ec62f278c426878689","source":{"kind":"arxiv","id":"2012.15393","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.15393","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"2012.15393v2","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.15393","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"EJUACOJCOQRS","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_16","alias_value":"EJUACOJCOQRSDL2W","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_8","alias_value":"EJUACOJC","created_at":"2026-07-05T02:46:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:EJUACOJCOQRSDL2WA4DUCRWF4Z","target":"record","payload":{"canonical_record":{"source":{"id":"2012.15393","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T01:48:18Z","cross_cats_sorted":["nucl-th","physics.flu-dyn"],"title_canon_sha256":"4597160a66bfb0887576c3de5306b9f50aea9e7ce811e5bf35538d3f305fa29e","abstract_canon_sha256":"87b2fabf103cc9e63d8b9e82bfd1f1fed4e1c4b1d24363e51e58110ec8ed6870"},"schema_version":"1.0"},"canonical_sha256":"2268013922742321af5607074146c5e64672911b83e8d1ec62f278c426878689","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:46:26.060598Z","signature_b64":"3GpFTUWCxMXoFK9mfapiihljffwfWvCmTRRaCxqGd/slRHJ79AdWt6EzFWrV5HfT7pbCChBwuT39VActVP4tBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2268013922742321af5607074146c5e64672911b83e8d1ec62f278c426878689","last_reissued_at":"2026-07-05T02:46:26.060066Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:46:26.060066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.15393","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":"2026-07-05T02:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wiUOCcmH6aa+HkzbnbFjFbCuXc8oHAdenE9lyQOMBRSPSQly0PeFzkTO0RXe1doYhM6zow8nOExpkY3FiypZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:10:23.221514Z"},"content_sha256":"bed4aeab5c633cc01416245b8dd696f5e046db49f8c0476d92d94686a456ed6d","schema_version":"1.0","event_id":"sha256:bed4aeab5c633cc01416245b8dd696f5e046db49f8c0476d92d94686a456ed6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:EJUACOJCOQRSDL2WA4DUCRWF4Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Convergence of hydrodynamic modes: insights from kinetic theory and holography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th","physics.flu-dyn"],"primary_cat":"hep-th","authors_text":"Alexandre Serantes, Benjamin Withers, Michal P. Heller, Micha{\\l} Spali\\'nski, Viktor Svensson","submitted_at":"2020-12-31T01:48:18Z","abstract_excerpt":"We study the mechanisms setting the radius of convergence of hydrodynamic dispersion relations in kinetic theory in the relaxation time approximation. This introduces a qualitatively new feature with respect to holography: a nonhydrodynamic sector represented by a branch cut in the retarded Green's function. In contrast with existing holographic examples, we find that the radius of convergence in the shear channel is set by a collision of the hydrodynamic pole with a branch point. In the sound channel it is set by a pole-pole collision on a non-principal sheet of the Green's function. More gen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.15393","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/2012.15393/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":"2026-07-05T02:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rz4dLL16ufSkww4oE/dDoYdzENHs6XoP/qxYeS217Q6aImYD57nqreHW8yFU1hbkuyuasacKXW2gIKl7c6e1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:10:23.221991Z"},"content_sha256":"d607251e57a7fc7de7864ab15610bf5abc4990b553b7fb4d5bfa03d2a9303f1d","schema_version":"1.0","event_id":"sha256:d607251e57a7fc7de7864ab15610bf5abc4990b553b7fb4d5bfa03d2a9303f1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/bundle.json","state_url":"https://pith.science/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/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":"2026-08-06T15:10:23Z","links":{"resolver":"https://pith.science/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z","bundle":"https://pith.science/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/bundle.json","state":"https://pith.science/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJUACOJCOQRSDL2WA4DUCRWF4Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EJUACOJCOQRSDL2WA4DUCRWF4Z","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":"87b2fabf103cc9e63d8b9e82bfd1f1fed4e1c4b1d24363e51e58110ec8ed6870","cross_cats_sorted":["nucl-th","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T01:48:18Z","title_canon_sha256":"4597160a66bfb0887576c3de5306b9f50aea9e7ce811e5bf35538d3f305fa29e"},"schema_version":"1.0","source":{"id":"2012.15393","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.15393","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"2012.15393v2","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.15393","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"EJUACOJCOQRS","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_16","alias_value":"EJUACOJCOQRSDL2W","created_at":"2026-07-05T02:46:26Z"},{"alias_kind":"pith_short_8","alias_value":"EJUACOJC","created_at":"2026-07-05T02:46:26Z"}],"graph_snapshots":[{"event_id":"sha256:d607251e57a7fc7de7864ab15610bf5abc4990b553b7fb4d5bfa03d2a9303f1d","target":"graph","created_at":"2026-07-05T02:46:26Z","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/2012.15393/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the mechanisms setting the radius of convergence of hydrodynamic dispersion relations in kinetic theory in the relaxation time approximation. This introduces a qualitatively new feature with respect to holography: a nonhydrodynamic sector represented by a branch cut in the retarded Green's function. In contrast with existing holographic examples, we find that the radius of convergence in the shear channel is set by a collision of the hydrodynamic pole with a branch point. In the sound channel it is set by a pole-pole collision on a non-principal sheet of the Green's function. More gen","authors_text":"Alexandre Serantes, Benjamin Withers, Michal P. Heller, Micha{\\l} Spali\\'nski, Viktor Svensson","cross_cats":["nucl-th","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T01:48:18Z","title":"Convergence of hydrodynamic modes: insights from kinetic theory and holography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.15393","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:bed4aeab5c633cc01416245b8dd696f5e046db49f8c0476d92d94686a456ed6d","target":"record","created_at":"2026-07-05T02:46:26Z","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":"87b2fabf103cc9e63d8b9e82bfd1f1fed4e1c4b1d24363e51e58110ec8ed6870","cross_cats_sorted":["nucl-th","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-12-31T01:48:18Z","title_canon_sha256":"4597160a66bfb0887576c3de5306b9f50aea9e7ce811e5bf35538d3f305fa29e"},"schema_version":"1.0","source":{"id":"2012.15393","kind":"arxiv","version":2}},"canonical_sha256":"2268013922742321af5607074146c5e64672911b83e8d1ec62f278c426878689","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2268013922742321af5607074146c5e64672911b83e8d1ec62f278c426878689","first_computed_at":"2026-07-05T02:46:26.060066Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:46:26.060066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3GpFTUWCxMXoFK9mfapiihljffwfWvCmTRRaCxqGd/slRHJ79AdWt6EzFWrV5HfT7pbCChBwuT39VActVP4tBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:46:26.060598Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.15393","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bed4aeab5c633cc01416245b8dd696f5e046db49f8c0476d92d94686a456ed6d","sha256:d607251e57a7fc7de7864ab15610bf5abc4990b553b7fb4d5bfa03d2a9303f1d"],"state_sha256":"91b375ef2222f1e97564837725daa0ee7d46e2f770bda2982b92a7847b6ae4e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uyPtIMvsv6ElI59Z9F4lRYTbto9R8GhAdDPHwzDG3Qoabmdzw/KogUBEJZwQhnEJ9S/QZiR3ZHpxv7cSi/K7CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T15:10:23.226466Z","bundle_sha256":"48b1abbdd3343d98d2271492f6c286e4b32c5347f6083e0f65acb95434b1468f"}}