Pith Number

pith:5SBHME46

pith:2024:5SBHME46EBHTIPICTYA7ZNZMAH

not attested not anchored not stored refs pending

Context-Free Languages of String Diagrams

Mario Rom\'an, Matt Earnshaw

arxiv:2404.10653 v1 · 2024-04-16 · cs.FL · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5SBHME46EBHTIPICTYA7ZNZMAH}

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	2026-07-05T08:08:43.196773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec8276139e204f343d029e01fcb72c01eedd2139daa63d5521b921643ab274c5

Aliases

arxiv: 2404.10653 · arxiv_version: 2404.10653v1 · doi: 10.48550/arxiv.2404.10653 · pith_short_12: 5SBHME46EBHT · pith_short_16: 5SBHME46EBHTIPIC · pith_short_8: 5SBHME46

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/5SBHME46EBHTIPICTYA7ZNZMAH \
  | 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: ec8276139e204f343d029e01fcb72c01eedd2139daa63d5521b921643ab274c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49ac954a4eb670d1337605280ee3b863eb7ee2d4cd2e7be993fe6b7d686f8614",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2024-04-16T15:30:20Z",
    "title_canon_sha256": "364d4c85265094266f5e36cd983bd01183abb3a32847c34957183b8ffee71c9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.10653",
    "kind": "arxiv",
    "version": 1
  }
}