Pith Number

pith:ZCTRUDWW

pith:2026:ZCTRUDWWQ2YX4CODC2N5L5Y2Q7

not attested not anchored not stored refs pending

WorldMark: A Plug-and-Play World Knowledge Interface for Cross-Host Language Model Watermarking

Kejun Zhang, Song Xiao, Yanshuo Zhang, Yuqi Yuan

arxiv:2608.06416 v1 · 2026-08-05 · cs.CR · 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{ZCTRUDWWQ2YX4CODC2N5L5Y2Q7}

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	2026-08-10T01:10:36.898581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8a71a0ed686b17e09c3169bd5f71a87efb913397051c550df1e57dc88ddea69

Aliases

arxiv: 2608.06416 · arxiv_version: 2608.06416v1 · doi: 10.48550/arxiv.2608.06416 · pith_short_12: ZCTRUDWWQ2YX · pith_short_16: ZCTRUDWWQ2YX4COD · pith_short_8: ZCTRUDWW

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/ZCTRUDWWQ2YX4CODC2N5L5Y2Q7 \
  | 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: c8a71a0ed686b17e09c3169bd5f71a87efb913397051c550df1e57dc88ddea69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8228eedc09bc8f466318f65ae2a6ebd101d0c4e4a55d3bda09630c140f296935",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-08-05T16:34:32Z",
    "title_canon_sha256": "47e97fc9067da51c79cdce1a78e596f5f60b9a4474335c71bc04f1d5aa80b509"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06416",
    "kind": "arxiv",
    "version": 1
  }
}