Pith Number

pith:K57ZAN4F

pith:2013:K57ZAN4FOGA56HWORQH2I26F3C

not attested not anchored not stored refs pending

Comparison between the two definitions of AI

Dimiter Dobrev

arxiv:1302.0216 v2 · 2013-01-31 · 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{K57ZAN4FOGA56HWORQH2I26F3C}

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	2026-05-18T03:15:18.391160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

577f9037857181df1ece8c0fa46bc5d8ac34e6eca59d72c6fe36d99bf180345c

Aliases

arxiv: 1302.0216 · arxiv_version: 1302.0216v2 · doi: 10.48550/arxiv.1302.0216 · pith_short_12: K57ZAN4FOGA5 · pith_short_16: K57ZAN4FOGA56HWO · pith_short_8: K57ZAN4F

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/K57ZAN4FOGA56HWORQH2I26F3C \
  | 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: 577f9037857181df1ece8c0fa46bc5d8ac34e6eca59d72c6fe36d99bf180345c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49d275749a0c9f812688aca76dc10fbd4a6259b925c2cca480ce560e0fe8c8a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-01-31T15:15:40Z",
    "title_canon_sha256": "9f85b17ac04c6878ee9dfc8ebbe8a4444a0fd6a8f03e3d99fbb947971be7a834"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0216",
    "kind": "arxiv",
    "version": 2
  }
}