Pith Number

pith:WL7CGEKR

pith:2019:WL7CGEKRYIWMJFV6Q56MZEPBWD

not attested not anchored not stored refs pending

An Operational Semantics of Graph Transformation Systems Using Symmetric Nets

Italy), Lorenzo Capra (Dipartimento di Informatica Universit\`a degli Studi di Milano, Milan

arxiv:1909.01750 v1 · 2019-09-04 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WL7CGEKRYIWMJFV6Q56MZEPBWD}

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	2026-07-05T00:02:19.509429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2fe231151c22cc496be877ccc91e1b0e0604123b2be6b93d0a8c39e26f109f8

Aliases

arxiv: 1909.01750 · arxiv_version: 1909.01750v1 · doi: 10.48550/arxiv.1909.01750 · pith_short_12: WL7CGEKRYIWM · pith_short_16: WL7CGEKRYIWMJFV6 · pith_short_8: WL7CGEKR

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/WL7CGEKRYIWMJFV6Q56MZEPBWD \
  | 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: b2fe231151c22cc496be877ccc91e1b0e0604123b2be6b93d0a8c39e26f109f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1432137592f5bcfd3653a042251dd3bc37aee3383c59102a0973b27a56203c5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-09-04T12:49:55Z",
    "title_canon_sha256": "e2725af22aa3ed9090b8600e10e13a62529a695c92b845644abdef9b0687e690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01750",
    "kind": "arxiv",
    "version": 1
  }
}