Pith Number

pith:ZQI57JGX

pith:2018:ZQI57JGX5PTENWKRTLZMNP5WAM

not attested not anchored not stored refs pending

On reference solutions and the sensitivity of the 2D Kelvin-Helmholtz instability problem

Christoph Lehrenfeld, Gert Lube, Joachim Sch\"oberl, Philip L. Lederer, Philipp W. Schroeder, Volker John

arxiv:1803.06893 v4 · 2018-03-19 · math.NA · physics.comp-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQI57JGX5PTENWKRTLZMNP5WAM}

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	2026-05-17T23:48:52.929604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc11dfa4d7ebe646d9519af2c6bfb6033b9e9a173ad09100ef06bf90782d58d2

Aliases

arxiv: 1803.06893 · arxiv_version: 1803.06893v4 · doi: 10.48550/arxiv.1803.06893 · pith_short_12: ZQI57JGX5PTE · pith_short_16: ZQI57JGX5PTENWKR · pith_short_8: ZQI57JGX

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/ZQI57JGX5PTENWKRTLZMNP5WAM \
  | 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: cc11dfa4d7ebe646d9519af2c6bfb6033b9e9a173ad09100ef06bf90782d58d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cd94fcd5c47b6d3a3493035fd65108e5abf3ddc397914e3ad663e7aaf40ff3a",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-19T12:40:49Z",
    "title_canon_sha256": "189c7e4230ab4a8bdda129a721788e0bf2d7c7a30624f8afdbd8eae859cc2195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06893",
    "kind": "arxiv",
    "version": 4
  }
}