Pith Number

pith:5ZNY4A27

pith:2019:5ZNY4A272B4IA6PMN4P2C74XVB

not attested not anchored not stored refs pending

Separating many words by counting occurrences of factors

Aleksi Saarela

arxiv:1905.07223 v1 · 2019-05-17 · math.CO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZNY4A272B4IA6PMN4P2C74XVB}

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	2026-05-17T23:45:56.130130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee5b8e035fd0788079ec6f1fa17f97a8476c4686307fcd0f6977d3620c7842bc

Aliases

arxiv: 1905.07223 · arxiv_version: 1905.07223v1 · doi: 10.48550/arxiv.1905.07223 · pith_short_12: 5ZNY4A272B4I · pith_short_16: 5ZNY4A272B4IA6PM · pith_short_8: 5ZNY4A27

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/5ZNY4A272B4IA6PMN4P2C74XVB \
  | 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: ee5b8e035fd0788079ec6f1fa17f97a8476c4686307fcd0f6977d3620c7842bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42a07441d420dbf79d57d6ea6d13a0df545c71a73713c016ee9a3e2e01f80951",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-17T12:24:01Z",
    "title_canon_sha256": "557fe7a49cece65f7671e454c95416bc543451abf58ac648aab9d34ccfaf67ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07223",
    "kind": "arxiv",
    "version": 1
  }
}