Pith Number

pith:QVROEUFL

pith:2008:QVROEUFL2PNMRLPIRWUF5B2X5J

not attested not anchored not stored refs pending

The RDF Virtual Machine

Marko A. Rodriguez

arxiv:0802.3492 v2 · 2008-02-24 · 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{QVROEUFL2PNMRLPIRWUF5B2X5J}

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	2026-05-18T04:21:21.614815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8562e250abd3dac8ade88da85e8757ea68afd1e54f52d5ab95bcc7c827a7ac72

Aliases

arxiv: 0802.3492 · arxiv_version: 0802.3492v2 · doi: 10.48550/arxiv.0802.3492 · pith_short_12: QVROEUFL2PNM · pith_short_16: QVROEUFL2PNMRLPI · pith_short_8: QVROEUFL

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/QVROEUFL2PNMRLPIRWUF5B2X5J \
  | 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: 8562e250abd3dac8ade88da85e8757ea68afd1e54f52d5ab95bcc7c827a7ac72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f93912c359d2a2b88ee6e9d7003ac4aa5ba725122dab81479c3585032ff49211",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2008-02-24T05:28:52Z",
    "title_canon_sha256": "fcca08693f318b1ce1a20f09df89ed299cd2f120de17599ee616a6b282ae02a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3492",
    "kind": "arxiv",
    "version": 2
  }
}