Pith Number

pith:A2BLAYXB

pith:1994:A2BLAYXBH33METPJLYEGQEDIHP

not attested not anchored not stored refs pending

Explicit representations of biorthogonal polynomials

Arieh Iserles, Syvert Paul N{\o}rsett

arxiv:math/9404224 v1 · 1994-04-22 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2BLAYXBH33METPJLYEGQEDIHP}

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	2026-05-18T01:38:23.071630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0682b062e13ef6c24de95e086810683bf3a00ff63022b2087a4defbfbe4d08d1

Aliases

arxiv: math/9404224 · arxiv_version: math/9404224v1 · doi: 10.48550/arxiv.math/9404224 · pith_short_12: A2BLAYXBH33M · pith_short_16: A2BLAYXBH33METPJ · pith_short_8: A2BLAYXB

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/A2BLAYXBH33METPJLYEGQEDIHP \
  | 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: 0682b062e13ef6c24de95e086810683bf3a00ff63022b2087a4defbfbe4d08d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17c7d573ec2cd724312db0e76469120ac78d169b1477d9ac5ba43f5bbd6b5135",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "1994-04-22T00:00:00Z",
    "title_canon_sha256": "09f948dcb0988bd885b4796270ebe0ab205568c1acd1fc1e600e5c522462417d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9404224",
    "kind": "arxiv",
    "version": 1
  }
}