Pith Number

pith:CDYXNFWB

pith:2017:CDYXNFWB4ZM255GAQHOVUD3GUL

not attested not anchored not stored refs pending

Solving the incompressible surface Navier-Stokes equation by surface finite elements

Axel Voigt, Sebastian Reuther

arxiv:1709.02803 v1 · 2017-09-08 · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDYXNFWB4ZM255GAQHOVUD3GUL}

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	2026-05-18T00:23:33.637233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10f17696c1e659aef4c081dd5a0f66a2dbf36c7ac9f8ba8926c1edde5d190f33

Aliases

arxiv: 1709.02803 · arxiv_version: 1709.02803v1 · doi: 10.48550/arxiv.1709.02803 · pith_short_12: CDYXNFWB4ZM2 · pith_short_16: CDYXNFWB4ZM255GA · pith_short_8: CDYXNFWB

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/CDYXNFWB4ZM255GAQHOVUD3GUL \
  | 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: 10f17696c1e659aef4c081dd5a0f66a2dbf36c7ac9f8ba8926c1edde5d190f33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12b1b291c30e72e572833508f4b7d5a88f38786ab31a82aad14309b7422fea75",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-08T07:29:51Z",
    "title_canon_sha256": "81c34048705409ae6ccce15519180c6dcc7e8f2e92151d1062b78226dcb60edc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02803",
    "kind": "arxiv",
    "version": 1
  }
}