Pith Number

pith:KMYC4WCN

pith:1999:KMYC4WCNOS2D7OE7AJYYO4IDIQ

not attested not anchored not stored refs pending

The Symbol Grounding Problem

Stevan Harnad

arxiv:cs/9906002 v1 · 1999-06-01 · 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{KMYC4WCNOS2D7OE7AJYYO4IDIQ}

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	2026-05-18T01:39:25.075443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53302e584d74b43fb89f0271877103440337e949aecd648a28fb04d6ad144701

Aliases

arxiv: cs/9906002 · arxiv_version: cs/9906002v1 · doi: 10.48550/arxiv.cs/9906002 · pith_short_12: KMYC4WCNOS2D · pith_short_16: KMYC4WCNOS2D7OE7 · pith_short_8: KMYC4WCN

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/KMYC4WCNOS2D7OE7AJYYO4IDIQ \
  | 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: 53302e584d74b43fb89f0271877103440337e949aecd648a28fb04d6ad144701

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84e6f3d8c991f1271e6209c0f92d52fd830c56986f8ae041d1c787bfb42f27e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.AI",
    "submitted_at": "1999-06-01T19:57:24Z",
    "title_canon_sha256": "4c0b1d6e145ece69f418661d1076faa351bbd2098ec820db076605e8967aced7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9906002",
    "kind": "arxiv",
    "version": 1
  }
}