Pith Number

pith:I4QZUKNX

pith:2013:I4QZUKNXMQKVSCE5H5PJ3TCUXV

not attested not anchored not stored refs pending

A Haskell Library for Term Rewriting

Bertram Felgenhauer, Christian Sternagel, Martin Avanzini

arxiv:1307.2328 v1 · 2013-07-09 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4QZUKNXMQKVSCE5H5PJ3TCUXV}

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	2026-05-18T03:18:52.823776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47219a29b7641559089d3f5e9dcc54bd6d1f12e665ced71b6d6432e13c1b0a29

Aliases

arxiv: 1307.2328 · arxiv_version: 1307.2328v1 · doi: 10.48550/arxiv.1307.2328 · pith_short_12: I4QZUKNXMQKV · pith_short_16: I4QZUKNXMQKVSCE5 · pith_short_8: I4QZUKNX

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/I4QZUKNXMQKVSCE5H5PJ3TCUXV \
  | 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: 47219a29b7641559089d3f5e9dcc54bd6d1f12e665ced71b6d6432e13c1b0a29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a0132bc8cb0d5da74ef2da8def7a8b0cebcc0b53bdf19704a1f19b9beb4673f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2013-07-09T03:45:41Z",
    "title_canon_sha256": "da50e6f29143fe0b4538624351289cc684892612702a22180ce03f7b75dbba15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2328",
    "kind": "arxiv",
    "version": 1
  }
}