Pith Number

pith:YWJY4B6F

pith:2012:YWJY4B6FYL7MXWOAXVN6KZ5LTK

not attested not anchored not stored refs pending

Logic Characterization of Floyd Languages

Dino Mandrioli, Matteo Pradella, Violetta Lonati

arxiv:1204.4639 v1 · 2012-04-20 · cs.FL · 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{YWJY4B6FYL7MXWOAXVN6KZ5LTK}

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	2026-05-18T03:57:25.824399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5938e07c5c2fecbd9c0bd5be567ab9a98b5c314b5b993acf37a140abae062c7

Aliases

arxiv: 1204.4639 · arxiv_version: 1204.4639v1 · doi: 10.48550/arxiv.1204.4639 · pith_short_12: YWJY4B6FYL7M · pith_short_16: YWJY4B6FYL7MXWOA · pith_short_8: YWJY4B6F

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/YWJY4B6FYL7MXWOAXVN6KZ5LTK \
  | 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: c5938e07c5c2fecbd9c0bd5be567ab9a98b5c314b5b993acf37a140abae062c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3765a780d275579ef6008bd2da35fcb486df58b8e9efa02b2ad0bcc621c8fbe",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-04-20T14:14:54Z",
    "title_canon_sha256": "9957a23a620146b05bc8eb7056d5080a6b6ede8a238cf5b7d71e83e322e3400c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4639",
    "kind": "arxiv",
    "version": 1
  }
}