Pith Number

pith:5XX6S32Z

pith:2000:5XX6S32ZLK4EP5QIYQXJCMSYIE

not attested not anchored not stored refs pending

A Theory of Universal Artificial Intelligence based on Algorithmic Complexity

Marcus Hutter

arxiv:cs/0004001 v1 · 2000-04-03 · cs.AI · cs.IT · cs.LG · 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{5XX6S32ZLK4EP5QIYQXJCMSYIE}

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.

Cited by

4 papers in Pith

A Model-Free Universal AI

Decidable By Construction: Design-Time Verification for Trustworthy AI

Intervention Complexity as a Canonical Reward and a Measure of Intelligence

The Rise and Potential of Large Language Model Based Agents: A Survey

Receipt and verification

First computed	2026-07-04T15:02:59.384388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edefe96f595ab847f608c42e913258412dbe21fd56ee338877077c5dd146a573

Aliases

arxiv: cs/0004001 · arxiv_version: cs/0004001v1 · doi: 10.48550/arxiv.cs/0004001 · pith_short_12: 5XX6S32ZLK4E · pith_short_16: 5XX6S32ZLK4EP5QI · pith_short_8: 5XX6S32Z

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/5XX6S32ZLK4EP5QIYQXJCMSYIE \
  | 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: edefe96f595ab847f608c42e913258412dbe21fd56ee338877077c5dd146a573

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ff867dfea5206f6f32601b01cd673ef17b1f583297dc4579712fe26d9b6398f",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.AI",
    "submitted_at": "2000-04-03T06:16:16Z",
    "title_canon_sha256": "e3ade6bf5bb113bcc46bcfc68040f477d4f723f1095c59d6e415472918e8126d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0004001",
    "kind": "arxiv",
    "version": 1
  }
}