Pith Number

pith:7QLYVXWY

pith:2016:7QLYVXWYCEQNELVQHXSDT5NPA5

not attested not anchored not stored refs pending

Requirement verification in simulation-based automation testing

Eero Siivola, Hannu Niemist\"o, Seppo Sierla, Tommi Karhela, Valeriy Vyatkin

arxiv:1602.02504 v3 · 2016-02-08 · cs.SE · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QLYVXWYCEQNELVQHXSDT5NPA5}

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	2026-05-18T00:45:50.101795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc178aded81120d22eb03de439f5af07684e5aa33bc32cf0dc309d88838b5a1e

Aliases

arxiv: 1602.02504 · arxiv_version: 1602.02504v3 · doi: 10.48550/arxiv.1602.02504 · pith_short_12: 7QLYVXWYCEQN · pith_short_16: 7QLYVXWYCEQNELVQ · pith_short_8: 7QLYVXWY

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/7QLYVXWYCEQNELVQHXSDT5NPA5 \
  | 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: fc178aded81120d22eb03de439f5af07684e5aa33bc32cf0dc309d88838b5a1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9404c340fc1a93106f73482ec1f347086c6c9d06d5808fdef036e04d93146758",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-02-08T09:30:22Z",
    "title_canon_sha256": "541eb491bda163e91ded74dbcfb233b13bc432ca5b9ad23ef17f10089239421c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02504",
    "kind": "arxiv",
    "version": 3
  }
}