Pith Number

pith:WUATTFNU

pith:2026:WUATTFNUWPNEKHVQ22EOZGYUFW

not attested not anchored not stored refs pending

surprisal is Not a Theory

Andr\'es Bux\'o-Lugo, Aniello De Santo, Cassandra L. Jacobs, Morgan Grobol, Ryan J. Hubbard

arxiv:2607.20208 v1 · 2026-07-22 · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUATTFNUWPNEKHVQ22EOZGYUFW}

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	2026-07-23T01:25:07.859404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5013995b4b3da451eb0d688ec9b142d928e4462ffe38301afb25bbbf400f486

Aliases

arxiv: 2607.20208 · arxiv_version: 2607.20208v1 · doi: 10.48550/arxiv.2607.20208 · pith_short_12: WUATTFNUWPNE · pith_short_16: WUATTFNUWPNEKHVQ · pith_short_8: WUATTFNU

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/WUATTFNUWPNEKHVQ22EOZGYUFW \
  | 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: b5013995b4b3da451eb0d688ec9b142d928e4462ffe38301afb25bbbf400f486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe611c8353f9e02d032c7b619cdf7d8fa53b31be427b6ec79311f81ba61b26ef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-22T14:28:28Z",
    "title_canon_sha256": "009793194e3bebc8e34df69b661dfaf9f9b328307bf64d704b74eaf5da78804a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20208",
    "kind": "arxiv",
    "version": 1
  }
}