Pith Number

pith:ZADWOC2F

pith:2019:ZADWOC2FKZAG7JFNJBX2U4YY6C

not attested not anchored not stored refs pending

Testing Smart Contracts Gets Smarter

Erfan Andesta, Fathiyeh Faghih, Mahdi Fooladgar

arxiv:1912.04780 v2 · 2019-12-10 · 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{ZADWOC2FKZAG7JFNJBX2U4YY6C}

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	2026-07-05T00:28:15.961834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c807670b4556406fa4ad486faa7318f0827605a5358b0bfbebbeab5b6c3c4f34

Aliases

arxiv: 1912.04780 · arxiv_version: 1912.04780v2 · doi: 10.48550/arxiv.1912.04780 · pith_short_12: ZADWOC2FKZAG · pith_short_16: ZADWOC2FKZAG7JFN · pith_short_8: ZADWOC2F

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/ZADWOC2FKZAG7JFNJBX2U4YY6C \
  | 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: c807670b4556406fa4ad486faa7318f0827605a5358b0bfbebbeab5b6c3c4f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e7263fd47e63fad5aa30b0f5f8e00f6b8ce3b83275020a2b286e8cddfc20b16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-12-10T15:52:52Z",
    "title_canon_sha256": "9be45aab6561b87b68e205921a139aa983d9017fcedef8a665f3d52801472fd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.04780",
    "kind": "arxiv",
    "version": 2
  }
}