Pith Number

pith:XXTSDTDQ

pith:2006:XXTSDTDQASPXB6YUGWSDZTFDWV

not attested not anchored not stored refs pending

Pade and Hermite-Pade approximation and orthogonality

Walter Van Assche

arxiv:math/0609094 v1 · 2006-09-04 · 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{XXTSDTDQASPXB6YUGWSDZTFDWV}

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	2026-05-18T03:10:24.843993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bde721cc70049f70fb1435a43ccca3b54bfdaa69e5d1106099504d9e9d61dcb4

Aliases

arxiv: math/0609094 · arxiv_version: math/0609094v1 · doi: 10.48550/arxiv.math/0609094 · pith_short_12: XXTSDTDQASPX · pith_short_16: XXTSDTDQASPXB6YU · pith_short_8: XXTSDTDQ

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/XXTSDTDQASPXB6YUGWSDZTFDWV \
  | 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: bde721cc70049f70fb1435a43ccca3b54bfdaa69e5d1106099504d9e9d61dcb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "183add320bb089c9e53e7a72d17e6b0d0c8ec81272db8c7817ca77eaddd33fc5",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "2006-09-04T10:18:54Z",
    "title_canon_sha256": "a04d8e400b370855a4dfdb36d655d7116d3ae8df48c5fd371e0d2653387e1827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0609094",
    "kind": "arxiv",
    "version": 1
  }
}