Pith Number

pith:2TSBYOA6

pith:2013:2TSBYOA6375FJ66WOQDGKUBMOS

not attested not anchored not stored refs pending

Cylindric polyadic algebras have the superamalgamation

Tarek Sayed Ahmed

arxiv:1304.0724 v1 · 2013-04-02 · 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{2TSBYOA6375FJ66WOQDGKUBMOS}

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	2026-05-18T03:29:14.499281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4e41c381edffa54fbd6740665502c749f1c9db51b7e221ac9ed05ac09aee402

Aliases

arxiv: 1304.0724 · arxiv_version: 1304.0724v1 · doi: 10.48550/arxiv.1304.0724 · pith_short_12: 2TSBYOA6375F · pith_short_16: 2TSBYOA6375FJ66W · pith_short_8: 2TSBYOA6

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/2TSBYOA6375FJ66WOQDGKUBMOS \
  | 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: d4e41c381edffa54fbd6740665502c749f1c9db51b7e221ac9ed05ac09aee402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f21c67afd1054a04236e6c38ecf4f1c798795eb06d3042f6c2b4a18f680a68f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-04-02T18:24:19Z",
    "title_canon_sha256": "5d9e6339ebadd95e61d17815b1e79b040aa4f33c61a8fe805800c42ab928779a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0724",
    "kind": "arxiv",
    "version": 1
  }
}