Pith Number

pith:INIZ36AS

pith:2018:INIZ36AS3KE57XJAC3HW4ACZNO

not attested not anchored not stored refs pending

Proving Type Class Laws for Haskell

Andreas Arvidsson, Moa Johansson, Robin Touche

arxiv:1808.05789 v1 · 2018-08-17 · 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{INIZ36AS3KE57XJAC3HW4ACZNO}

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	2026-05-18T00:07:52.127831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43519df812da89dfdd2016cf6e00596b8809006a847ec27eabc84c8ba1a786e2

Aliases

arxiv: 1808.05789 · arxiv_version: 1808.05789v1 · doi: 10.48550/arxiv.1808.05789 · pith_short_12: INIZ36AS3KE5 · pith_short_16: INIZ36AS3KE57XJA · pith_short_8: INIZ36AS

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/INIZ36AS3KE57XJAC3HW4ACZNO \
  | 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: 43519df812da89dfdd2016cf6e00596b8809006a847ec27eabc84c8ba1a786e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d67beeeab57ed37d609c2422ed0f020467545010f0cf3da09934fa517b2b032a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-08-17T08:19:37Z",
    "title_canon_sha256": "cb69fedc8bfbd9b784aba4013faa5228227b2a41396e7e838661a8ab8fbd35a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05789",
    "kind": "arxiv",
    "version": 1
  }
}