Pith Number

pith:U2XU6GEY

pith:2006:U2XU6GEYVLJLJHZW3V67J2MG5A

not attested not anchored not stored refs pending

The algebra of the box spline

C. De Concini, C. Procesi

arxiv:math/0602019 v1 · 2006-02-01 · math.NA · cs.NA · math.AC · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2XU6GEYVLJLJHZW3V67J2MG5A}

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	2026-06-03T22:06:18.888949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6af4f1898aad2b49f36dd7df4e986e807c94428f17ec54f8a9d736313bba769

Aliases

arxiv: math/0602019 · arxiv_version: math/0602019v1 · doi: 10.48550/arxiv.math/0602019 · pith_short_12: U2XU6GEYVLJL · pith_short_16: U2XU6GEYVLJLJHZW · pith_short_8: U2XU6GEY

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/U2XU6GEYVLJLJHZW3V67J2MG5A \
  | 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: a6af4f1898aad2b49f36dd7df4e986e807c94428f17ec54f8a9d736313bba769

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9566ab297261e0d5b65dd0bf11c470ac426d08288d1fcc18d2b05e8e78d97792",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AC",
      "math.AG"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2006-02-01T19:48:33Z",
    "title_canon_sha256": "5e049b47c31b2b63f651fd5d7f86861eaee0eb0d4f70a450e4e5dc602fa77815"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0602019",
    "kind": "arxiv",
    "version": 1
  }
}