Pith Number

pith:4M3NNKIP

pith:2018:4M3NNKIPI7DNDPZDZ2EURX2AEP

not attested not anchored not stored refs pending

Ready, Set, Verify! Applying hs-to-coq to real-world Haskell code

Antal Spector-Zabusky, Christine Rizkallah, Joachim Breitner, John Wiegley, Stephanie Weirich, Yao Li

arxiv:1803.06960 v2 · 2018-03-19 · 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{4M3NNKIPI7DNDPZDZ2EURX2AEP}

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	2026-05-18T00:20:34.322217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e336d6a90f47c6d1bf23ce8948df4023d3dd705f880376fd009be5e4b282e2b8

Aliases

arxiv: 1803.06960 · arxiv_version: 1803.06960v2 · doi: 10.48550/arxiv.1803.06960 · pith_short_12: 4M3NNKIPI7DN · pith_short_16: 4M3NNKIPI7DNDPZD · pith_short_8: 4M3NNKIP

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/4M3NNKIPI7DNDPZDZ2EURX2AEP \
  | 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: e336d6a90f47c6d1bf23ce8948df4023d3dd705f880376fd009be5e4b282e2b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "893a0270ddfc0050d83e5a0ff8e0cd327de681d74ceef3d6ab31f985db18d26d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-03-19T14:42:25Z",
    "title_canon_sha256": "f9929739a1bf757270c1cfc94f3a738eb329331431fc468814fd38dd77d3f201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06960",
    "kind": "arxiv",
    "version": 2
  }
}