Pith Number

pith:NBVYEOSB

pith:2019:NBVYEOSBHUOP7G2FIYJGBUQRPD

not attested not anchored not stored refs pending

Type Checking Program Code using SHACL (Extended Version)

Claudia Schon, Martin Leinberger, Philipp Seifer, Ralf L\"ammel, Steffen Staab

arxiv:1907.00855 v1 · 2019-07-01 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBVYEOSBHUOP7G2FIYJGBUQRPD}

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	2026-05-17T23:41:47.864326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

686b823a413d1cff9b45461260d21178c843e0e97c8e7333b6d13922ea92ee09

Aliases

arxiv: 1907.00855 · arxiv_version: 1907.00855v1 · doi: 10.48550/arxiv.1907.00855 · pith_short_12: NBVYEOSBHUOP · pith_short_16: NBVYEOSBHUOP7G2F · pith_short_8: NBVYEOSB

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/NBVYEOSBHUOP7G2FIYJGBUQRPD \
  | 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: 686b823a413d1cff9b45461260d21178c843e0e97c8e7333b6d13922ea92ee09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c22c1f24df28bffd393aac86c72bbd242cefcac1b7490d5339d1f0ca05c6d06d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-07-01T15:20:42Z",
    "title_canon_sha256": "8bdea944c0e3ca2042d7e869ebc940f74a3d63fe5e9e41ff410e6f6151422ad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00855",
    "kind": "arxiv",
    "version": 1
  }
}