Pith Number

pith:2QJMHK72

pith:2015:2QJMHK72P6UBTYMQJWJURJO5EN

not attested not anchored not stored refs pending

An RBF-FD polynomial method based on polyharmonic splines for the Navier-Stokes equations: Comparisons on different node layouts

Gregory A. Barnett, Louis J. Wicker, Natasha Flyer

arxiv:1509.02615 v1 · 2015-09-09 · physics.comp-ph · math.NA · physics.ao-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{2QJMHK72P6UBTYMQJWJURJO5EN}

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	2026-05-18T01:33:34.564515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d412c3abfa7fa819e1904d9348a5dd2372f24fae875be6f6ae13b4eac7510b41

Aliases

arxiv: 1509.02615 · arxiv_version: 1509.02615v1 · doi: 10.48550/arxiv.1509.02615 · pith_short_12: 2QJMHK72P6UB · pith_short_16: 2QJMHK72P6UBTYMQ · pith_short_8: 2QJMHK72

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/2QJMHK72P6UBTYMQJWJURJO5EN \
  | 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: d412c3abfa7fa819e1904d9348a5dd2372f24fae875be6f6ae13b4eac7510b41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1a81a9fe18ea382b7953311c27d812a1fe507849992f0242a62cf2f1beedbbe",
    "cross_cats_sorted": [
      "math.NA",
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-09-09T02:43:38Z",
    "title_canon_sha256": "b400bcb9586799d61806ed72e1e57712fde0c4dce1b0c90bfc2b431cfcaabc59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02615",
    "kind": "arxiv",
    "version": 1
  }
}