Pith Number

pith:PUCX3YEE

pith:2014:PUCX3YEETCMFH77FI2N2QBE5MO

not attested not anchored not stored refs pending

Amalgamation, interpolation and congruence extension properties in topological cylindric algebras

Tarek Sayed Ahmed

arxiv:1402.5867 v1 · 2014-01-27 · 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{PUCX3YEETCMFH77FI2N2QBE5MO}

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	2026-05-18T02:58:13.415447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d057de084989853ffe5469ba8049d63af8421bca74a4f62212e97e8c3e60cfc

Aliases

arxiv: 1402.5867 · arxiv_version: 1402.5867v1 · doi: 10.48550/arxiv.1402.5867 · pith_short_12: PUCX3YEETCMF · pith_short_16: PUCX3YEETCMFH77F · pith_short_8: PUCX3YEE

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/PUCX3YEETCMFH77FI2N2QBE5MO \
  | 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: 7d057de084989853ffe5469ba8049d63af8421bca74a4f62212e97e8c3e60cfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c25538422fbfd07d51c6a92e6a833f935ddee23700619262dfffafd0899b027b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-01-27T20:05:54Z",
    "title_canon_sha256": "fb7af5edb76531992f36de8f1931bb83c541fca289070633f7b1233ce9428b87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5867",
    "kind": "arxiv",
    "version": 1
  }
}