Pith Number

pith:6U4MVKXR

pith:2005:6U4MVKXR5YHMWTEAAZOESTNFZM

not attested not anchored not stored refs pending

Gaussian Quadrature without Orthogonal Polynomials

Ilan Degani, Jeremy Schiff

arxiv:math/0506199 v1 · 2005-06-10 · 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{6U4MVKXR5YHMWTEAAZOESTNFZM}

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	2026-06-03T22:06:17.130334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f538caaaf1ee0ecb4c80065c494da5cb3d6d7cc5ebe4be495f7dca081bdd5bf1

Aliases

arxiv: math/0506199 · arxiv_version: math/0506199v1 · doi: 10.48550/arxiv.math/0506199 · pith_short_12: 6U4MVKXR5YHM · pith_short_16: 6U4MVKXR5YHMWTEA · pith_short_8: 6U4MVKXR

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/6U4MVKXR5YHMWTEAAZOESTNFZM \
  | 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: f538caaaf1ee0ecb4c80065c494da5cb3d6d7cc5ebe4be495f7dca081bdd5bf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ef3ad5c2fa9137fc7831a15f453c4ce030a42ba97f874adb97eb9b81b069ddf",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2005-06-10T14:25:52Z",
    "title_canon_sha256": "9e5259ff07c16e55078c6c5bb1a76b46c4e6a8e5bb18e03120990b7c989dad58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0506199",
    "kind": "arxiv",
    "version": 1
  }
}