Pith Number

pith:QFCKNASM

pith:2016:QFCKNASMFWULJCVYEJTVX5MKTI

not attested not anchored not stored refs pending

Simultaneous Gaussian quadrature for Angelesco systems

Doron S. Lubinsky, Walter Van Assche

arxiv:1603.06069 v1 · 2016-03-19 · 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{QFCKNASMFWULJCVYEJTVX5MKTI}

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	2026-05-18T00:53:17.618229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8144a6824c2da8b48ab822675bf58a9a0903ea508d3867bc45e26a106d3dc067

Aliases

arxiv: 1603.06069 · arxiv_version: 1603.06069v1 · doi: 10.48550/arxiv.1603.06069 · pith_short_12: QFCKNASMFWUL · pith_short_16: QFCKNASMFWULJCVY · pith_short_8: QFCKNASM

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/QFCKNASMFWULJCVYEJTVX5MKTI \
  | 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: 8144a6824c2da8b48ab822675bf58a9a0903ea508d3867bc45e26a106d3dc067

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9644b6f66b193d43b1a72ff689f404744fb991384c7823ad90265319bf0885be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-03-19T09:39:18Z",
    "title_canon_sha256": "0dfc480b8983a61b47499acfbb997fdd151e712f5a0d74d782dbedf158bb4fe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06069",
    "kind": "arxiv",
    "version": 1
  }
}