Pith Number

pith:2AAF4HI2

pith:2026:2AAF4HI2WDKI26XVCFYVRXBM65

not attested not anchored not stored refs pending

Surprisal Theory is Tautological (without Rational Grounding)

Ryan Cotterell

arxiv:2607.21574 v1 · 2026-07-23 · 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{2AAF4HI2WDKI26XVCFYVRXBM65}

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	2026-07-24T01:24:40.847281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0005e1d1ab0d48d7af5117158dc2cf77bf7c6c5f459ccc59fc8ca0d910c0f7a

Aliases

arxiv: 2607.21574 · arxiv_version: 2607.21574v1 · doi: 10.48550/arxiv.2607.21574 · pith_short_12: 2AAF4HI2WDKI · pith_short_16: 2AAF4HI2WDKI26XV · pith_short_8: 2AAF4HI2

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/2AAF4HI2WDKI26XVCFYVRXBM65 \
  | 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: d0005e1d1ab0d48d7af5117158dc2cf77bf7c6c5f459ccc59fc8ca0d910c0f7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbad3c87dbe58017ccca80f0b50013033a6d20b57b75794dd851e47a421d44a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-23T17:54:37Z",
    "title_canon_sha256": "39d65cf20cd15e4de4cec0174a6acf82d5263fa1e3e27741c624886345d67376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21574",
    "kind": "arxiv",
    "version": 1
  }
}