Pith Number

pith:KKRKYNSO

pith:2016:KKRKYNSO2DH4MJQWERXSKXGPU3

not attested not anchored not stored refs pending

The Controlled Natural Language of Randall Munroe's Thing Explainer

Tobias Kuhn

arxiv:1605.02457 v1 · 2016-05-09 · 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{KKRKYNSO2DH4MJQWERXSKXGPU3}

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	2026-05-18T01:15:16.500220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52a2ac364ed0cfc62616246f255ccfa6c5d20c3b8a203248dc19b99f7b865bba

Aliases

arxiv: 1605.02457 · arxiv_version: 1605.02457v1 · doi: 10.48550/arxiv.1605.02457 · pith_short_12: KKRKYNSO2DH4 · pith_short_16: KKRKYNSO2DH4MJQW · pith_short_8: KKRKYNSO

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/KKRKYNSO2DH4MJQWERXSKXGPU3 \
  | 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: 52a2ac364ed0cfc62616246f255ccfa6c5d20c3b8a203248dc19b99f7b865bba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73cceeaca3342ed744654c56c58598d1d1ddc747fe9a2e5e49d02f35fd8aa3ab",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-05-09T07:48:40Z",
    "title_canon_sha256": "85258ebc31323572eba56f6c4665e4b51ee6f618ab65e2943331799371c684d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02457",
    "kind": "arxiv",
    "version": 1
  }
}