Pith Number

pith:YYK5SOCQ

pith:2013:YYK5SOCQAKUVTKQLMQO2J3OKZH

not attested not anchored not stored refs pending

A Framework for the Verification of Certifying Computations

Christine Rizkallah, Eyad Alkassar, Kurt Mehlhorn, Sascha B\"ohme

arxiv:1301.7462 v1 · 2013-01-30 · cs.LO · cs.DS · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYK5SOCQAKUVTKQLMQO2J3OKZH}

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	2026-05-18T03:34:49.450732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c615d9385002a959aa0b641da4edcac9cbe12647dc0fd0b9fdd13182c444b4e5

Aliases

arxiv: 1301.7462 · arxiv_version: 1301.7462v1 · doi: 10.48550/arxiv.1301.7462 · pith_short_12: YYK5SOCQAKUV · pith_short_16: YYK5SOCQAKUVTKQL · pith_short_8: YYK5SOCQ

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/YYK5SOCQAKUVTKQLMQO2J3OKZH \
  | 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: c615d9385002a959aa0b641da4edcac9cbe12647dc0fd0b9fdd13182c444b4e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c49a3e925508833b67b9100866625b17f4b8988378024889a249dab6ab28bf07",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-01-30T23:02:36Z",
    "title_canon_sha256": "00c874838593abe84c7ec3b7c67c18ea800d20f1f35f715b6c032012eefad2fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7462",
    "kind": "arxiv",
    "version": 1
  }
}