Pith Number

pith:HXOJ7SBI

pith:2013:HXOJ7SBIS2TBB5NIUWPL6RTESE

not attested not anchored not stored refs pending

On completions of algebras in SNr_nCA_{n+k}, n\geq 3, k\geq 1

Tarek Sayed Ahmed

arxiv:1304.3625 v1 · 2013-04-11 · 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{HXOJ7SBIS2TBB5NIUWPL6RTESE}

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	2026-05-18T03:28:07.029448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ddc9fc82896a610f5a8a59ebf466491317a4b580022a594b0695058251e5534

Aliases

arxiv: 1304.3625 · arxiv_version: 1304.3625v1 · doi: 10.48550/arxiv.1304.3625 · pith_short_12: HXOJ7SBIS2TB · pith_short_16: HXOJ7SBIS2TBB5NI · pith_short_8: HXOJ7SBI

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/HXOJ7SBIS2TBB5NIUWPL6RTESE \
  | 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: 3ddc9fc82896a610f5a8a59ebf466491317a4b580022a594b0695058251e5534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2d8f509f010e30f6ec78a37bf15b38e7e59b53ae769d2317daaffc093f2a06f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-04-11T07:39:55Z",
    "title_canon_sha256": "8fddbd8ebb90cb168f431ddf3ce365a836b3329022137eabe08bf58452efa012"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3625",
    "kind": "arxiv",
    "version": 1
  }
}