Pith Number

pith:FQMUS4GI

pith:2011:FQMUS4GIOYBPRN6OQXO77IAM7A

not attested not anchored not stored refs pending

The nearest neighbor recurrence coefficients for multiple orthogonal polynomials

Walter Van Assche

arxiv:1104.3778 v1 · 2011-04-19 · 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{FQMUS4GIOYBPRN6OQXO77IAM7A}

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	2026-05-18T03:10:27.047682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c194970c87602f8b7ce85ddffa00cf81cb5624529baca257b63e25a5b27d82a

Aliases

arxiv: 1104.3778 · arxiv_version: 1104.3778v1 · doi: 10.48550/arxiv.1104.3778 · pith_short_12: FQMUS4GIOYBP · pith_short_16: FQMUS4GIOYBPRN6O · pith_short_8: FQMUS4GI

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/FQMUS4GIOYBPRN6OQXO77IAM7A \
  | 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: 2c194970c87602f8b7ce85ddffa00cf81cb5624529baca257b63e25a5b27d82a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac351022150bdb992b6144ffef8d283614b47e9b2985ab1cec53bf8e7e59102c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-04-19T15:33:59Z",
    "title_canon_sha256": "6372268025f9ff2343da32fdcf72bbdad29d6430a93503e0b025dc4f413c364e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3778",
    "kind": "arxiv",
    "version": 1
  }
}