Pith Number

pith:P7DMVDC4

pith:2018:P7DMVDC4LTLS33QM7UOPMGYBHT

not attested not anchored not stored refs pending

The sufficiently smart compiler is a theorem prover

Joachim Breitner

arxiv:1805.08106 v1 · 2018-05-21 · 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{P7DMVDC4LTLS33QM7UOPMGYBHT}

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	2026-05-18T00:15:31.613223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fc6ca8c5c5cd72dee0cfd1cf61b013ce105e8d3ef5a1542db4357eb0d9905bf

Aliases

arxiv: 1805.08106 · arxiv_version: 1805.08106v1 · doi: 10.48550/arxiv.1805.08106 · pith_short_12: P7DMVDC4LTLS · pith_short_16: P7DMVDC4LTLS33QM · pith_short_8: P7DMVDC4

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/P7DMVDC4LTLS33QM7UOPMGYBHT \
  | 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: 7fc6ca8c5c5cd72dee0cfd1cf61b013ce105e8d3ef5a1542db4357eb0d9905bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b8a3e70b7a98136c9f855464d154004ab45fa7c4e8f2e5fa8b24b94a4d2d882",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-05-21T15:03:24Z",
    "title_canon_sha256": "ce69e44afd14247ea9c2a00cc6f0191b32e2e54a2d0d4f596be748a931d16830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08106",
    "kind": "arxiv",
    "version": 1
  }
}