Pith Number

pith:W2HRGFOM

pith:2019:W2HRGFOM5CB5HND5P6VNL5STBG

not attested not anchored not stored refs pending

The Fibonacci Quilt Game

Alexandra Newlon, Steven J. Miller

arxiv:1909.01938 v1 · 2019-09-04 · math.NT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2HRGFOM5CB5HND5P6VNL5STBG}

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	2026-07-05T00:02:21.943713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68f1315cce883d3b47d7faad5f653098cf31155b4350b98931725e51a4c8a7a

Aliases

arxiv: 1909.01938 · arxiv_version: 1909.01938v1 · doi: 10.48550/arxiv.1909.01938 · pith_short_12: W2HRGFOM5CB5 · pith_short_16: W2HRGFOM5CB5HND5 · pith_short_8: W2HRGFOM

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/W2HRGFOM5CB5HND5P6VNL5STBG \
  | 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: b68f1315cce883d3b47d7faad5f653098cf31155b4350b98931725e51a4c8a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4884e6e8c9c052f46f4afcc0eb481dd0e74f2c25f0230869104d6430ed72d031",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-09-04T16:55:33Z",
    "title_canon_sha256": "5957cd9f8f52d4d6572b6995187f98ad30665432731e74f595e7710567906342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01938",
    "kind": "arxiv",
    "version": 1
  }
}