Pith Number

pith:QWBCG7RB

pith:2018:QWBCG7RBFGEMMNFQN2GUIXD7UD

not attested not anchored not stored refs pending

On the Verification of Logically Decorated Graph Transformations

Jon Ha\"el Brenas, Martin Strecker, Rachid Echahed

arxiv:1803.02776 v1 · 2018-03-07 · 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{QWBCG7RBFGEMMNFQN2GUIXD7UD}

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	2026-05-18T00:21:49.269378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8582237e212988c634b06e8d445c7fa0fad001d8e730b87a3af35047a2715930

Aliases

arxiv: 1803.02776 · arxiv_version: 1803.02776v1 · doi: 10.48550/arxiv.1803.02776 · pith_short_12: QWBCG7RBFGEM · pith_short_16: QWBCG7RBFGEMMNFQ · pith_short_8: QWBCG7RB

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/QWBCG7RBFGEMMNFQN2GUIXD7UD \
  | 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: 8582237e212988c634b06e8d445c7fa0fad001d8e730b87a3af35047a2715930

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eed01a10158912a1311518de48dab753f55905efafdf9793c7dc582395254bd8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-03-07T17:16:01Z",
    "title_canon_sha256": "ae3d3a5d6b3f9984efd162f11f5b25ad6a2bc015f1e176c25ff1b590b2a81548"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02776",
    "kind": "arxiv",
    "version": 1
  }
}