Pith Number

pith:TC7HR42F

pith:2012:TC7HR42FFT5LVXRBTXVRPM2W4J

not attested not anchored not stored refs pending

Formal Definition of AI

Dimiter Dobrev

arxiv:1209.4838 v1 · 2012-09-21 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TC7HR42FFT5LVXRBTXVRPM2W4J}

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	2026-05-18T03:45:01.674390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98be78f3452cfabade219deb17b356e25f8b116459cf134fdd124ae13b189d5f

Aliases

arxiv: 1209.4838 · arxiv_version: 1209.4838v1 · doi: 10.48550/arxiv.1209.4838 · pith_short_12: TC7HR42FFT5L · pith_short_16: TC7HR42FFT5LVXRB · pith_short_8: TC7HR42F

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/TC7HR42FFT5LVXRBTXVRPM2W4J \
  | 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: 98be78f3452cfabade219deb17b356e25f8b116459cf134fdd124ae13b189d5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40886cc5a588b4193888b3d609cab4c8dd3e77278269240041f619d2f173d2f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-09-21T14:58:33Z",
    "title_canon_sha256": "67db76110533ce960b355e1fa48c3a4e0b489f692ba0d69bce083525de00a97a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4838",
    "kind": "arxiv",
    "version": 1
  }
}