Pith Number

pith:XTAQ35SL

pith:2009:XTAQ35SLAFAIYBM6PG663AZXWO

not attested not anchored not stored refs pending

Orthogonal polynomials in several variables for measures with mass points

A. M. Delgado, L. Fernandez, M. A. Pinar, T. E. Perez, Y. Xu

arxiv:0911.2818 v1 · 2009-11-15 · math.CA · cs.NA · 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{XTAQ35SLAFAIYBM6PG663AZXWO}

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	2026-06-03T23:06:30.686131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcc10df64b01408c059e79bded8337b383eef5a41d7a1b1336456b5bb103832d

Aliases

arxiv: 0911.2818 · arxiv_version: 0911.2818v1 · doi: 10.48550/arxiv.0911.2818 · pith_short_12: XTAQ35SLAFAI · pith_short_16: XTAQ35SLAFAIYBM6 · pith_short_8: XTAQ35SL

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/XTAQ35SLAFAIYBM6PG663AZXWO \
  | 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: bcc10df64b01408c059e79bded8337b383eef5a41d7a1b1336456b5bb103832d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e0e402b9cdf7e27ec6506675b413d8ec986e129a74010e13d2002cfcefa85f5",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2009-11-15T00:03:30Z",
    "title_canon_sha256": "43bb49bdc6f6ef2698ab04c8bb82ec72580c45847d647f797eb7614c7775ed2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2818",
    "kind": "arxiv",
    "version": 1
  }
}