Pith Number

pith:4QCOK7KK

pith:2008:4QCOK7KKVUKURXH2VLYMBVYH2V

not attested not anchored not stored refs pending

Approximate Hermite quasi-interpolation

Flavia Lanzara, Gunther Schmidt, Vladimir Maz'ya

arxiv:0806.2546 v1 · 2008-06-16 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QCOK7KKVUKURXH2VLYMBVYH2V}

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	2026-06-03T22:06:06.973595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e404e57d4aad1548dcfaaaf0c0d707d552aa2cfbdaafe7a66ee4a23ecff4d9cf

Aliases

arxiv: 0806.2546 · arxiv_version: 0806.2546v1 · doi: 10.48550/arxiv.0806.2546 · pith_short_12: 4QCOK7KKVUKU · pith_short_16: 4QCOK7KKVUKURXH2 · pith_short_8: 4QCOK7KK

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/4QCOK7KKVUKURXH2VLYMBVYH2V \
  | 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: e404e57d4aad1548dcfaaaf0c0d707d552aa2cfbdaafe7a66ee4a23ecff4d9cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a3aa361797bb33a42da2eeff9b1f23323b17b199af6440b66a572350f7aedb5",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-06-16T11:47:37Z",
    "title_canon_sha256": "7f23d5b33ea624431d0b2062e56693f3265057df4b40617019e4c933b7f1a426"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.2546",
    "kind": "arxiv",
    "version": 1
  }
}