Pith Number

pith:OEJLBS5T

pith:2012:OEJLBS5TH3UKIRGB6JD2HELKFZ

not attested not anchored not stored refs pending

Simple derivation of basic quadrature formulas

Erik Talvila, Matthew Wiersma

arxiv:1202.0249 v1 · 2012-02-01 · math.CA · math.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{OEJLBS5TH3UKIRGB6JD2HELKFZ}

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	2026-05-18T04:03:19.817480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7112b0cbb33ee8a444c1f247a3916a2e6697cca286c48cd724be04d44f7e8042

Aliases

arxiv: 1202.0249 · arxiv_version: 1202.0249v1 · doi: 10.48550/arxiv.1202.0249 · pith_short_12: OEJLBS5TH3UK · pith_short_16: OEJLBS5TH3UKIRGB · pith_short_8: OEJLBS5T

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/OEJLBS5TH3UKIRGB6JD2HELKFZ \
  | 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: 7112b0cbb33ee8a444c1f247a3916a2e6697cca286c48cd724be04d44f7e8042

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6985196207828f0b7e2728abb3ae74155f523c34ecbb732e0ad9b70ffbda7172",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-02-01T19:24:38Z",
    "title_canon_sha256": "dab076b78c5501ae8850e5c6723420d4df541ef7d71b01a647a777973f91d72a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0249",
    "kind": "arxiv",
    "version": 1
  }
}