Pith Number

pith:K6CIE7MN

pith:2012:K6CIE7MNRRAYMCTRLJ2EOVHFEU

not attested not anchored not stored refs pending

The Design and Algorithms of a Verification Condition Generator

Radu Grigore

arxiv:1204.6719 v1 · 2012-04-30 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6CIE7MNRRAYMCTRLJ2EOVHFEU}

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	2026-05-18T03:56:44.023541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5784827d8d8c41860a715a744754e525151fbd604ac92060f6fcfc66cd815899

Aliases

arxiv: 1204.6719 · arxiv_version: 1204.6719v1 · doi: 10.48550/arxiv.1204.6719 · pith_short_12: K6CIE7MNRRAY · pith_short_16: K6CIE7MNRRAYMCTR · pith_short_8: K6CIE7MN

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/K6CIE7MNRRAYMCTRLJ2EOVHFEU \
  | 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: 5784827d8d8c41860a715a744754e525151fbd604ac92060f6fcfc66cd815899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afa9318ca563d2e6018a26517c605bc166c4314d778fcc1338e76251621be451",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2012-04-30T18:39:55Z",
    "title_canon_sha256": "8695b2f48b1d767bcd521d13e6ee22895385e7108de329fca716ca5d88d76348"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6719",
    "kind": "arxiv",
    "version": 1
  }
}