Pith Number

pith:C7WUOSRD

pith:2018:C7WUOSRD6OTGJJTZLSFBVAOZUH

not attested not anchored not stored refs pending

Towards Classification of Lightweight Formal Methods

Anna Zamansky, Guillermo Rodriguez-Navas, Jan Olaf Blech, Maria Spichkova, Peter Herrmann

arxiv:1807.01923 v1 · 2018-07-05 · 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{C7WUOSRD6OTGJJTZLSFBVAOZUH}

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	2026-05-18T00:11:24.698460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17ed474a23f3a664a6795c8a1a81d9a1c01605e7cd47c492a8cd7089d8bc22bd

Aliases

arxiv: 1807.01923 · arxiv_version: 1807.01923v1 · doi: 10.48550/arxiv.1807.01923 · pith_short_12: C7WUOSRD6OTG · pith_short_16: C7WUOSRD6OTGJJTZ · pith_short_8: C7WUOSRD

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/C7WUOSRD6OTGJJTZLSFBVAOZUH \
  | 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: 17ed474a23f3a664a6795c8a1a81d9a1c01605e7cd47c492a8cd7089d8bc22bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81bca3805108e4bf7e57bd6e66e263ed3994a19d63110453c2f664ca6e711e7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-07-05T09:53:17Z",
    "title_canon_sha256": "f329ec489d7291f319b527c1cba0f8b9e528f026f71293cc6d18adc4173176f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01923",
    "kind": "arxiv",
    "version": 1
  }
}