Pith Number

pith:6B4SSEGN

pith:2013:6B4SSEGNFIF3RSWDXES3FQSSTL

not attested not anchored not stored refs pending

The total run length of a word

Amy Glen, Jamie Simpson

arxiv:1301.6568 v2 · 2013-01-28 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6B4SSEGNFIF3RSWDXES3FQSSTL}

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	2026-05-18T03:26:32.066241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0792910cd2a0bb8cac3b925b2c2529ae03ee04453db9d369c5ac479945ace51

Aliases

arxiv: 1301.6568 · arxiv_version: 1301.6568v2 · doi: 10.48550/arxiv.1301.6568 · pith_short_12: 6B4SSEGNFIF3 · pith_short_16: 6B4SSEGNFIF3RSWD · pith_short_8: 6B4SSEGN

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/6B4SSEGNFIF3RSWDXES3FQSSTL \
  | 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: f0792910cd2a0bb8cac3b925b2c2529ae03ee04453db9d369c5ac479945ace51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80033b841fefdfc3b527d6fad51e0d73cc69866703ea1c20f90d681ee607dfd4",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-01-28T15:02:32Z",
    "title_canon_sha256": "db17a5f969aaa9957268d280df60d068f894ddefeafca978a8563296bbccfe42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6568",
    "kind": "arxiv",
    "version": 2
  }
}