Pith Number

pith:VRLTH6YK

pith:2026:VRLTH6YKRQHEUJ7J5JH5QHJSGX

not attested not anchored not stored refs pending

TokenPrint: A Calibrated Token-Space Fingerprint for Language-Model Provenance

Jie Chen, Shengming Zhao, Yuqi Wu

arxiv:2608.08139 v1 · 2026-08-08 · 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{VRLTH6YKRQHEUJ7J5JH5QHJSGX}

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	2026-08-11T01:21:48.062889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac5733fb0a8c0e4a27e9ea4fd81d3235f585149e7e9562e435559dc8eaf3fee0

Aliases

arxiv: 2608.08139 · arxiv_version: 2608.08139v1 · doi: 10.48550/arxiv.2608.08139 · pith_short_12: VRLTH6YKRQHE · pith_short_16: VRLTH6YKRQHEUJ7J · pith_short_8: VRLTH6YK

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/VRLTH6YKRQHEUJ7J5JH5QHJSGX \
  | 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: ac5733fb0a8c0e4a27e9ea4fd81d3235f585149e7e9562e435559dc8eaf3fee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c685bb8ca6f80027c4ffff8971a631bcc5b1b0752a2170c1b00b19ec9f7f94c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-08-08T13:56:39Z",
    "title_canon_sha256": "7e8085b6331c4a03a06eb0708ad6d0aeb7c20bf271e5a1aeaf27a4c119208803"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.08139",
    "kind": "arxiv",
    "version": 1
  }
}