Pith Number

pith:V4UWQMCP

pith:2013:V4UWQMCPP5VIE7UETZDTZZBUMB

not attested not anchored not stored refs pending

Utility-Based Abstraction and Categorization

Adrian Klein, Eric J. Horvitz

arxiv:1303.1469 v1 · 2013-03-06 · 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{V4UWQMCPP5VIE7UETZDTZZBUMB}

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	2026-05-18T03:31:42.750474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af2968304f7f6a827e849e473ce4346062e97a5adf1703fe2c6e404cffaa9ac0

Aliases

arxiv: 1303.1469 · arxiv_version: 1303.1469v1 · doi: 10.48550/arxiv.1303.1469 · pith_short_12: V4UWQMCPP5VI · pith_short_16: V4UWQMCPP5VIE7UE · pith_short_8: V4UWQMCP

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/V4UWQMCPP5VIE7UETZDTZZBUMB \
  | 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: af2968304f7f6a827e849e473ce4346062e97a5adf1703fe2c6e404cffaa9ac0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae54d54d64870b358da076f367632c1569a0f15275902399ac88bbfa6995320c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-03-06T14:19:50Z",
    "title_canon_sha256": "e66979630d9e9c299297d5a2cf316a5b8a875de292860c1fe30787683461f95f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1469",
    "kind": "arxiv",
    "version": 1
  }
}