Pith Number

pith:IALRLQQ7

pith:2016:IALRLQQ7DNGAXTBFIFUEQ3KYGA

not attested not anchored not stored refs pending

The AAA algorithm for rational approximation

Lloyd N. Trefethen, Olivier S\`ete, Yuji Nakatsukasa

arxiv:1612.00337 v2 · 2016-12-01 · math.NA · cs.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{IALRLQQ7DNGAXTBFIFUEQ3KYGA}

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	2026-06-04T18:10:18.602282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401715c21f1b4c0bcc254168486d5830320687f33d3052a4593a6095417ec8cb

Aliases

arxiv: 1612.00337 · arxiv_version: 1612.00337v2 · doi: 10.48550/arxiv.1612.00337 · pith_short_12: IALRLQQ7DNGA · pith_short_16: IALRLQQ7DNGAXTBF · pith_short_8: IALRLQQ7

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/IALRLQQ7DNGAXTBFIFUEQ3KYGA \
  | 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: 401715c21f1b4c0bcc254168486d5830320687f33d3052a4593a6095417ec8cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d408193ae701cc82d9fbab435edbd62d2416a3c91b36f7223479a7f69b09be6a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-01T16:27:19Z",
    "title_canon_sha256": "0c57c5c605e44d5b556dfff568128aa32a1e1141dd4b9340e6d8e4710133778a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00337",
    "kind": "arxiv",
    "version": 2
  }
}