Pith Number

pith:6MBE5A5U

pith:2016:6MBE5A5UALBRAWI3HVQIOBA5NP

not attested not anchored not stored refs pending

An extensible formal semantics for UML activity diagrams

Rance Cleaveland, Zamira Daw

arxiv:1604.02386 v1 · 2016-04-08 · 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{6MBE5A5UALBRAWI3HVQIOBA5NP}

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	2026-05-18T01:17:26.681424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3024e83b402c310591b3d6087041d6bfaa6d7ae0edc58073d44340de60ce7cc

Aliases

arxiv: 1604.02386 · arxiv_version: 1604.02386v1 · doi: 10.48550/arxiv.1604.02386 · pith_short_12: 6MBE5A5UALBR · pith_short_16: 6MBE5A5UALBRAWI3 · pith_short_8: 6MBE5A5U

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/6MBE5A5UALBRAWI3HVQIOBA5NP \
  | 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: f3024e83b402c310591b3d6087041d6bfaa6d7ae0edc58073d44340de60ce7cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9e2e0c0fc8af1d34b4c3225a41505bbc4c5ddbcbf1ad91fc03c6f8782f28c64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-04-08T15:59:27Z",
    "title_canon_sha256": "46dee668d982dd2bc87c9fb6cf0b3fdd0ef18fe2671723d87e2a77f650917b0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02386",
    "kind": "arxiv",
    "version": 1
  }
}