Pith Number

pith:Q47YW557

pith:2011:Q47YW557EAJGIQMEM4YDMOLBGY

not attested not anchored not stored refs pending

Context Tree Switching

Joel Veness, Kee Siong Ng, Marcus Hutter, Michael Bowling

arxiv:1111.3182 v1 · 2011-11-14 · cs.IT · 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{Q47YW557EAJGIQMEM4YDMOLBGY}

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	2026-05-18T04:08:22.853219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

873f8b77bf201264418467303639613612510798452b9a3aeb353e68e4ebe349

Aliases

arxiv: 1111.3182 · arxiv_version: 1111.3182v1 · doi: 10.48550/arxiv.1111.3182 · pith_short_12: Q47YW557EAJG · pith_short_16: Q47YW557EAJGIQME · pith_short_8: Q47YW557

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/Q47YW557EAJGIQMEM4YDMOLBGY \
  | 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: 873f8b77bf201264418467303639613612510798452b9a3aeb353e68e4ebe349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b566dda4746b3c315d43f4c5eb41e65f22f67d5e4c29d6da5bd829d81db55005",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-11-14T11:45:25Z",
    "title_canon_sha256": "c98bcad30b6f75d5c18d12bf1f59f2bfdd9f6eabc14dfc85c5bfaa344d37a776"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3182",
    "kind": "arxiv",
    "version": 1
  }
}