Pith Number

pith:55MHKDB5

pith:2013:55MHKDB55NRO2XRAH7A7IY5LYE

not attested not anchored not stored refs pending

Giving the AI definition a form suitable for the engineer

Dimiter Dobrev

arxiv:1312.5713 v2 · 2013-12-19 · 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{55MHKDB55NRO2XRAH7A7IY5LYE}

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	2026-05-18T02:20:00.371019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef58750c3deb62ed5e203fc1f463abc12f5167283c9a9d2795c4a31eda23d673

Aliases

arxiv: 1312.5713 · arxiv_version: 1312.5713v2 · doi: 10.48550/arxiv.1312.5713 · pith_short_12: 55MHKDB55NRO · pith_short_16: 55MHKDB55NRO2XRA · pith_short_8: 55MHKDB5

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/55MHKDB55NRO2XRAH7A7IY5LYE \
  | 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: ef58750c3deb62ed5e203fc1f463abc12f5167283c9a9d2795c4a31eda23d673

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f7747cbfd0f058d45758496c6eb073b200b4a2091f056c75a7248f9ac99534",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-12-19T19:28:18Z",
    "title_canon_sha256": "35e4a51c714d2d6c5e6e458fbf24c19f4fae3bd27b9054495aff00d450d905cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5713",
    "kind": "arxiv",
    "version": 2
  }
}