Pith Number

pith:ARE7UNPN

pith:2008:ARE7UNPNQOT23Q6OYRAB74SYJY

not attested not anchored not stored refs pending

Efficient Implementation of the Generalized Tunstall Code Generation Algorithm

Michael B. Baer

arxiv:0809.0949 v3 · 2008-09-05 · cs.IT · cs.DS · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ARE7UNPNQOT23Q6OYRAB74SYJY}

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	2026-07-04T15:42:14.444120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0449fa35ed83a7adc3cec4401ff2584e3b0f22a4f705fafe5fbba142eb12b521

Aliases

arxiv: 0809.0949 · arxiv_version: 0809.0949v3 · doi: 10.48550/arxiv.0809.0949 · pith_short_12: ARE7UNPNQOT2 · pith_short_16: ARE7UNPNQOT23Q6O · pith_short_8: ARE7UNPN

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/ARE7UNPNQOT23Q6OYRAB74SYJY \
  | 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: 0449fa35ed83a7adc3cec4401ff2584e3b0f22a4f705fafe5fbba142eb12b521

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaa6c987c02e343eb73105610189abdfcf127de1e7e7dab0aa51ef7d93e8cf46",
    "cross_cats_sorted": [
      "cs.DS",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-09-05T05:14:10Z",
    "title_canon_sha256": "7bb8e70e818db1dc62af8e3fc4b1bd150173d9b9d575912905107dc5931deb64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0949",
    "kind": "arxiv",
    "version": 3
  }
}