Pith Number

pith:RGXVSO4Y

pith:2012:RGXVSO4YZHNT626VV3W225E2NT

not attested not anchored not stored refs pending

Deciding KAT and Hoare Logic with Derivatives

Nelma Moreira, Ricardo Almeida, Sabine Broda

arxiv:1210.2456 v1 · 2012-10-09 · 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{RGXVSO4YZHNT626VV3W225E2NT}

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	2026-05-18T03:43:41.462166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89af593b98c9db3f6bd5aeedad749a6ccaa2b3e02d2acdb9bdf8fbd464aedb3b

Aliases

arxiv: 1210.2456 · arxiv_version: 1210.2456v1 · doi: 10.48550/arxiv.1210.2456 · pith_short_12: RGXVSO4YZHNT · pith_short_16: RGXVSO4YZHNT626V · pith_short_8: RGXVSO4Y

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/RGXVSO4YZHNT626VV3W225E2NT \
  | 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: 89af593b98c9db3f6bd5aeedad749a6ccaa2b3e02d2acdb9bdf8fbd464aedb3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a59ebaecdc71429d05f5c206b4a113fd5b80c4cc423344f54c39b9ecce3d0c",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-10-09T00:54:12Z",
    "title_canon_sha256": "b7d7ab27fdb1eedca2dc62c0b09175863b9d4ca0ee267ec1f9710f4bd2d8ad86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2456",
    "kind": "arxiv",
    "version": 1
  }
}