Pith Number

pith:IKSMDUAQ

pith:2014:IKSMDUAQRLLKDVN3D3UO2DUXJC

not attested not anchored not stored refs pending

CDDiff: Semantic Differencing for Class Diagrams

Bernhard Rumpe, Jan Oliver Ringert, Shahar Maoz

arxiv:1409.2355 v1 · 2014-09-08 · 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{IKSMDUAQRLLKDVN3D3UO2DUXJC}

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	2026-05-18T02:43:17.328230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a4c1d0108ad6a1d5bb1ee8ed0e9748b166c527c063989531b7a4c25bb8e9df

Aliases

arxiv: 1409.2355 · arxiv_version: 1409.2355v1 · doi: 10.48550/arxiv.1409.2355 · pith_short_12: IKSMDUAQRLLK · pith_short_16: IKSMDUAQRLLKDVN3 · pith_short_8: IKSMDUAQ

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/IKSMDUAQRLLKDVN3D3UO2DUXJC \
  | 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: 42a4c1d0108ad6a1d5bb1ee8ed0e9748b166c527c063989531b7a4c25bb8e9df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd108d5ce29f453523ebd3472436be54991fdf1571795f0d890acb05224c666b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-09-08T14:17:43Z",
    "title_canon_sha256": "492cb2edccdec5f4495a0815ae10827d507963088cc4e3ec644a76e19f8639fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2355",
    "kind": "arxiv",
    "version": 1
  }
}