Pith Number

pith:7HBKFEW3

pith:2012:7HBKFEW3HXJWPWT6L54RP677MX

not attested not anchored not stored refs pending

Randomness and Non-determinism

Leonid A. Levin

arxiv:1211.0071 v1 · 2012-11-01 · cs.CC · cs.CR · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HBKFEW3HXJWPWT6L54RP677MX}

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	2026-05-17T23:59:33.574554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c2a292db3dd367da7e5f7917fbff65e97a579ed8bc594f1b2b97e2141b5890

Aliases

arxiv: 1211.0071 · arxiv_version: 1211.0071v1 · doi: 10.48550/arxiv.1211.0071 · pith_short_12: 7HBKFEW3HXJW · pith_short_16: 7HBKFEW3HXJWPWT6 · pith_short_8: 7HBKFEW3

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/7HBKFEW3HXJWPWT6L54RP677MX \
  | 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: f9c2a292db3dd367da7e5f7917fbff65e97a579ed8bc594f1b2b97e2141b5890

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75e23fb09e630c78b112e5d93c1c74a9195388c4c41c7528319d63dc7e4b9ddc",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-11-01T01:09:48Z",
    "title_canon_sha256": "0bc087fbc6aa1bdee9b72c0d82089dde644c61abcabca2932bed556eaef50864"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0071",
    "kind": "arxiv",
    "version": 1
  }
}