Pith Number

pith:SNGCEEEA

pith:2017:SNGCEEEAIWCOEF2NKONLW23M6T

not attested not anchored not stored refs pending

The Classification Problem for Simple Unital Finite Rank Dimension Groups

Paul Ellis

arxiv:1709.06684 v1 · 2017-09-20 · math.LO · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNGCEEEAIWCOEF2NKONLW23M6T}

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	2026-05-18T00:34:40.809964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

934c2210804584e2174d539abb6b6cf4fe5a0d3e42f89804c2f439c188e73656

Aliases

arxiv: 1709.06684 · arxiv_version: 1709.06684v1 · doi: 10.48550/arxiv.1709.06684 · pith_short_12: SNGCEEEAIWCO · pith_short_16: SNGCEEEAIWCOEF2N · pith_short_8: SNGCEEEA

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/SNGCEEEAIWCOEF2NKONLW23M6T \
  | 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: 934c2210804584e2174d539abb6b6cf4fe5a0d3e42f89804c2f439c188e73656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9ff0ccf3a6829e6be0539d9fea4e6f11ebb7b040833e2187582f93e2ef542e7",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-09-20T00:18:12Z",
    "title_canon_sha256": "e5164cf670345bb28e976af58b6a2004850f590cd4c127e0ee1f7c9fac44915f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06684",
    "kind": "arxiv",
    "version": 1
  }
}