Pith Number

pith:JGN7O2RQ

pith:2017:JGN7O2RQYWSNR5RBQTPXQSKJUH

not attested not anchored not stored refs pending

Combining Static and Dynamic Contract Checking for Curry

Michael Hanus

arxiv:1709.04816 v1 · 2017-09-14 · cs.PL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JGN7O2RQYWSNR5RBQTPXQSKJUH}

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	2026-05-18T00:35:10.080463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

499bf76a30c5a4d8f62184df784949a1d2866c96e94ce30c97a5dcbcfb9ef96e

Aliases

arxiv: 1709.04816 · arxiv_version: 1709.04816v1 · doi: 10.48550/arxiv.1709.04816 · pith_short_12: JGN7O2RQYWSN · pith_short_16: JGN7O2RQYWSNR5RB · pith_short_8: JGN7O2RQ

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/JGN7O2RQYWSNR5RBQTPXQSKJUH \
  | 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: 499bf76a30c5a4d8f62184df784949a1d2866c96e94ce30c97a5dcbcfb9ef96e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a416f0c090472edfa726fbc28f3e771963218b8331f09b856b7a2dd743a9d52b",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-09-14T14:35:50Z",
    "title_canon_sha256": "d17a86eb131d2c41db78c6efff1a1715b28dd9c70d66b8329bf7685877240b03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04816",
    "kind": "arxiv",
    "version": 1
  }
}