Pith Number

pith:B3RR5KBQ

pith:2013:B3RR5KBQ2M7H4SSIET5XP6AW25

not attested not anchored not stored refs pending

READ-EVAL-PRINT in Parallel and Asynchronous Proof-checking

Makarius Wenzel

arxiv:1307.1944 v1 · 2013-07-08 · cs.LO · cs.AI · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B3RR5KBQ2M7H4SSIET5XP6AW25}

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	2026-05-18T03:19:03.020381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee31ea830d33e7e4a4824fb77f816d7528b0dcebbf8eec463b0ba36552a14fa

Aliases

arxiv: 1307.1944 · arxiv_version: 1307.1944v1 · doi: 10.48550/arxiv.1307.1944 · pith_short_12: B3RR5KBQ2M7H · pith_short_16: B3RR5KBQ2M7H4SSI · pith_short_8: B3RR5KBQ

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/B3RR5KBQ2M7H4SSIET5XP6AW25 \
  | 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: 0ee31ea830d33e7e4a4824fb77f816d7528b0dcebbf8eec463b0ba36552a14fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a2d937f8a6c49bb66f90c617c67621258b7abb6a2ea52b8b3c7c4abd31c4d07",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-07-08T04:41:45Z",
    "title_canon_sha256": "178ed22930301c5cebb1445486eb28bce8394e3a1ce6f33df098eef6841cecb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1944",
    "kind": "arxiv",
    "version": 1
  }
}