Pith Number

pith:U6AOG7UN

pith:2011:U6AOG7UNEQMYPUR6FYGYODRWXS

not attested not anchored not stored refs pending

On Universal Tilers

David G. L. Wang

arxiv:1109.0813 v1 · 2011-09-05 · 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{U6AOG7UNEQMYPUR6FYGYODRWXS}

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	2026-05-18T03:42:44.755418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a780e37e8d241987d23e2e0d870e36bca40e0746f373e7bcfd7644655110a5e7

Aliases

arxiv: 1109.0813 · arxiv_version: 1109.0813v1 · doi: 10.48550/arxiv.1109.0813 · pith_short_12: U6AOG7UNEQMY · pith_short_16: U6AOG7UNEQMYPUR6 · pith_short_8: U6AOG7UN

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/U6AOG7UNEQMYPUR6FYGYODRWXS \
  | 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: a780e37e8d241987d23e2e0d870e36bca40e0746f373e7bcfd7644655110a5e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baa8f13c4fcdd984859e9e69a396c97c66cecb62390d106f925d814fcf8c5a8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-09-05T07:09:50Z",
    "title_canon_sha256": "66a0052ba06b77ab2d984bd0561828afad284b1d89e7ca8c5eda254fec5e1c82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0813",
    "kind": "arxiv",
    "version": 1
  }
}