{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:U7Q37RLII7UVV3PPFWZX6UU2OS","short_pith_number":"pith:U7Q37RLI","canonical_record":{"source":{"id":"1504.07131","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-04-27T15:28:44Z","cross_cats_sorted":[],"title_canon_sha256":"b6d2d95641cfbe2074c90ce273f4b48100678fb5c9f8c115b7a0171c76e78027","abstract_canon_sha256":"0e6d1119bed373b15fac8e69e6e829462ede15d47fc798008dad467a507c96b3"},"schema_version":"1.0"},"canonical_sha256":"a7e1bfc56847e95aedef2db37f529a7498b9900118d283d743609096195587df","source":{"kind":"arxiv","id":"1504.07131","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07131","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07131v3","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07131","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"U7Q37RLII7UV","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"U7Q37RLII7UVV3PP","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"U7Q37RLI","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:U7Q37RLII7UVV3PPFWZX6UU2OS","target":"record","payload":{"canonical_record":{"source":{"id":"1504.07131","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-04-27T15:28:44Z","cross_cats_sorted":[],"title_canon_sha256":"b6d2d95641cfbe2074c90ce273f4b48100678fb5c9f8c115b7a0171c76e78027","abstract_canon_sha256":"0e6d1119bed373b15fac8e69e6e829462ede15d47fc798008dad467a507c96b3"},"schema_version":"1.0"},"canonical_sha256":"a7e1bfc56847e95aedef2db37f529a7498b9900118d283d743609096195587df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:39.441363Z","signature_b64":"YD3uD0tQpxIi1/gdfiAt9Y2ncr6mS+qNoeOB1qZqxNehTpHd9AulbS3VJft0v5b42RN6nAZlF+5g/Ia93F74BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7e1bfc56847e95aedef2db37f529a7498b9900118d283d743609096195587df","last_reissued_at":"2026-05-18T01:31:39.440856Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:39.440856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.07131","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:31:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e/hjYLMUHaRHTiRVcWkY+uuTb/jVYOyj5yd/l2Ro4/oeU2Ak7b0TRQFeC5QFWuzHBa7L51idWlvhVd0igFFpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:28:11.116756Z"},"content_sha256":"296505cc4728d72404d5a6289f3f6dac87aa0a58ebff3a6b1b26d1bfe28d9c66","schema_version":"1.0","event_id":"sha256:296505cc4728d72404d5a6289f3f6dac87aa0a58ebff3a6b1b26d1bfe28d9c66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:U7Q37RLII7UVV3PPFWZX6UU2OS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Shear viscosity of strongly interacting fermionic quantum fluids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Nandan Pakhira, Ross H. McKenzie","submitted_at":"2015-04-27T15:28:44Z","abstract_excerpt":"Eighty years ago Eyring proposed that the shear viscosity of a liquid, $\\eta$, has a quantum limit $\\eta \\gtrsim n\\hbar$ where $n$ is the density of the fluid. Using holographic duality and the AdS/CFT correspondence in string theory Kovtun, Son, and Starinets (KSS) conjectured a universal bound $\\frac{\\eta}{s}\\geq \\frac{\\hbar}{4\\pi k_{B}}$ for the ratio between the shear viscosity and the entropy density, $s$. Using Dynamical Mean-Field Theory (DMFT) we calculate the shear viscosity and entropy density for a fermionic fluid described by a single band Hubbard model at half filling. Our calcula"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07131","kind":"arxiv","version":3},"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":"2026-05-18T01:31:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zMhx6F0ytIaEsFGYoBs+jgY9WbWiiC9+zqYQXbY+TJ0RoyCHacx/zVIdvVXOBqxOhm3o3d4YhAYE6V/ZXvUiDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:28:11.117095Z"},"content_sha256":"b93a0ac606589f2329e83e9905c9b98f956179e2abecfc77cc5d6fa322c16a04","schema_version":"1.0","event_id":"sha256:b93a0ac606589f2329e83e9905c9b98f956179e2abecfc77cc5d6fa322c16a04"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/bundle.json","state_url":"https://pith.science/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/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":"2026-06-03T06:28:11Z","links":{"resolver":"https://pith.science/pith/U7Q37RLII7UVV3PPFWZX6UU2OS","bundle":"https://pith.science/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/bundle.json","state":"https://pith.science/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U7Q37RLII7UVV3PPFWZX6UU2OS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:U7Q37RLII7UVV3PPFWZX6UU2OS","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":"0e6d1119bed373b15fac8e69e6e829462ede15d47fc798008dad467a507c96b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-04-27T15:28:44Z","title_canon_sha256":"b6d2d95641cfbe2074c90ce273f4b48100678fb5c9f8c115b7a0171c76e78027"},"schema_version":"1.0","source":{"id":"1504.07131","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07131","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07131v3","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07131","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"U7Q37RLII7UV","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"U7Q37RLII7UVV3PP","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"U7Q37RLI","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:b93a0ac606589f2329e83e9905c9b98f956179e2abecfc77cc5d6fa322c16a04","target":"graph","created_at":"2026-05-18T01:31:39Z","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":"Eighty years ago Eyring proposed that the shear viscosity of a liquid, $\\eta$, has a quantum limit $\\eta \\gtrsim n\\hbar$ where $n$ is the density of the fluid. Using holographic duality and the AdS/CFT correspondence in string theory Kovtun, Son, and Starinets (KSS) conjectured a universal bound $\\frac{\\eta}{s}\\geq \\frac{\\hbar}{4\\pi k_{B}}$ for the ratio between the shear viscosity and the entropy density, $s$. Using Dynamical Mean-Field Theory (DMFT) we calculate the shear viscosity and entropy density for a fermionic fluid described by a single band Hubbard model at half filling. Our calcula","authors_text":"Nandan Pakhira, Ross H. McKenzie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-04-27T15:28:44Z","title":"Shear viscosity of strongly interacting fermionic quantum fluids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07131","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":"sha256:296505cc4728d72404d5a6289f3f6dac87aa0a58ebff3a6b1b26d1bfe28d9c66","target":"record","created_at":"2026-05-18T01:31:39Z","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":"0e6d1119bed373b15fac8e69e6e829462ede15d47fc798008dad467a507c96b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-04-27T15:28:44Z","title_canon_sha256":"b6d2d95641cfbe2074c90ce273f4b48100678fb5c9f8c115b7a0171c76e78027"},"schema_version":"1.0","source":{"id":"1504.07131","kind":"arxiv","version":3}},"canonical_sha256":"a7e1bfc56847e95aedef2db37f529a7498b9900118d283d743609096195587df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7e1bfc56847e95aedef2db37f529a7498b9900118d283d743609096195587df","first_computed_at":"2026-05-18T01:31:39.440856Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:39.440856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YD3uD0tQpxIi1/gdfiAt9Y2ncr6mS+qNoeOB1qZqxNehTpHd9AulbS3VJft0v5b42RN6nAZlF+5g/Ia93F74BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:39.441363Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.07131","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:296505cc4728d72404d5a6289f3f6dac87aa0a58ebff3a6b1b26d1bfe28d9c66","sha256:b93a0ac606589f2329e83e9905c9b98f956179e2abecfc77cc5d6fa322c16a04"],"state_sha256":"aa1051a4ec00c6257b51eaab52034c56ab767798430cd865cfcd07220d2f25e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WI0Wgym0OsIfBowr3sE2gUlQBbCRRImCqdN8XZC94SRiSjfnFwBz+b1LJkPwf/nsoPBffrid0IRx+dKloZ9ZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T06:28:11.118982Z","bundle_sha256":"3ecd505f18b275557d4aa8f0bb51049ef69726777816d720580c14c49d78ff4f"}}