Pith Number

pith:XBQFQXNN

pith:2010:XBQFQXNN3S5MRAHMMNZ3O2J32X

not attested not anchored not stored refs pending

An Introduction to Software Engineering and Fault Tolerance

Alexander Romanovsky, Henry Muccini, Nicolas Guelfi, Patrizio Pelliccione

arxiv:1011.1551 v1 · 2010-11-06 · 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{XBQFQXNN3S5MRAHMMNZ3O2J32X}

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	2026-05-18T04:36:50.931293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b860585daddcbac880ec6373b7693bd5e09359d292dd4bf1e670954cdaeee63b

Aliases

arxiv: 1011.1551 · arxiv_version: 1011.1551v1 · doi: 10.48550/arxiv.1011.1551 · pith_short_12: XBQFQXNN3S5M · pith_short_16: XBQFQXNN3S5MRAHM · pith_short_8: XBQFQXNN

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/XBQFQXNN3S5MRAHMMNZ3O2J32X \
  | 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: b860585daddcbac880ec6373b7693bd5e09359d292dd4bf1e670954cdaeee63b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59d177522d652d2833e0e45d62dc8cd8a51420ec39789d82629a80019163802f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2010-11-06T10:27:01Z",
    "title_canon_sha256": "eea9ee22540153c9026d2d93bb568d9c5a56eccc342e5d57d612116f0b9cd106"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1551",
    "kind": "arxiv",
    "version": 1
  }
}