Pith Number

pith:G74PUSGI

pith:2016:G74PUSGIVPUWO3NG7O2NG7OYTN

not attested not anchored not stored refs pending

Discrete exterior calculus (DEC) for the surface Navier-Stokes equation

Axel Voigt, Ingo Nitschke, Sebastian Reuther

arxiv:1611.04392 v2 · 2016-11-14 · math.NA · cs.NA · math.DG · 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{G74PUSGIVPUWO3NG7O2NG7OYTN}

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	2026-06-04T18:10:15.802835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37f8fa48c8abe9676da6fbb4d37dd89b585947ffa61647cff0bd1a3fcc4795eb

Aliases

arxiv: 1611.04392 · arxiv_version: 1611.04392v2 · doi: 10.48550/arxiv.1611.04392 · pith_short_12: G74PUSGIVPUW · pith_short_16: G74PUSGIVPUWO3NG · pith_short_8: G74PUSGI

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/G74PUSGIVPUWO3NG7O2NG7OYTN \
  | 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: 37f8fa48c8abe9676da6fbb4d37dd89b585947ffa61647cff0bd1a3fcc4795eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36102c229579a664e976eee659eeee1271e2b126a92015d9fae42fc358e93571",
    "cross_cats_sorted": [
      "cs.NA",
      "math.DG",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-11-14T14:25:08Z",
    "title_canon_sha256": "237509ef208e90a4679b688dd49c12625558485e6fe80a932aecea778d0cb49b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.04392",
    "kind": "arxiv",
    "version": 2
  }
}