Pith Number

pith:K5TWDEYJ

pith:2012:K5TWDEYJGL4XRW3U3HSR2NKE4N

not attested not anchored not stored refs pending

On Generalized I-Algebras and 4-valued Modal Algebras

Aldo V. Figallo, Paolo Landini

arxiv:1203.6056 v1 · 2012-03-27 · math.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{K5TWDEYJGL4XRW3U3HSR2NKE4N}

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	2026-05-18T03:59:12.614905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

576761930932f978db74d9e51d3544e3680dd48431532eadb2161adc891fcf05

Aliases

arxiv: 1203.6056 · arxiv_version: 1203.6056v1 · doi: 10.48550/arxiv.1203.6056 · pith_short_12: K5TWDEYJGL4X · pith_short_16: K5TWDEYJGL4XRW3U · pith_short_8: K5TWDEYJ

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/K5TWDEYJGL4XRW3U3HSR2NKE4N \
  | 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: 576761930932f978db74d9e51d3544e3680dd48431532eadb2161adc891fcf05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db244817730f251c0594e266ba2ed2f514656f08ee562aa9244daf30459c3f36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-03-27T19:34:49Z",
    "title_canon_sha256": "171bdac9d602e4d341e972472711217a93e5c747f9adc6cdaa3210c25c929833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6056",
    "kind": "arxiv",
    "version": 1
  }
}