Pith Number

pith:67Z5XGIC

pith:2026:67Z5XGICAQR3DAVTTWKT7DAYOB

not attested not anchored not stored refs pending

Nonlinear Causality and Strong Hyperbolicity of Einstein-Israel-Stewart Theories of Transient Relativistic Fluid Dynamics

Enrico Speranza, F\'abio S. Bemfica, Ian Cordeiro, Jorge Noronha, Marcelo M. Disconzi

arxiv:2607.05639 v1 · 2026-07-06 · nucl-th · astro-ph.HE · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67Z5XGICAQR3DAVTTWKT7DAYOB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-08T01:18:39.937763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7f3db99020423b182b39d953f8c18707af6f2020536be83d23d70cf2091200e

Aliases

arxiv: 2607.05639 · arxiv_version: 2607.05639v1 · doi: 10.48550/arxiv.2607.05639 · pith_short_12: 67Z5XGICAQR3 · pith_short_16: 67Z5XGICAQR3DAVT · pith_short_8: 67Z5XGIC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/67Z5XGICAQR3DAVTTWKT7DAYOB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f7f3db99020423b182b39d953f8c18707af6f2020536be83d23d70cf2091200e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8ff4e51e6bd4697f8739d127f0ec781f47ecefdd1d85d150630824d0e88e17c",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2026-07-06T21:01:12Z",
    "title_canon_sha256": "4c08facd7930b72e40f8535f9edc3817f9d12b14f2502ec19469107b1afc0715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05639",
    "kind": "arxiv",
    "version": 1
  }
}