Pith Number

pith:TLEOTBZY

pith:2010:TLEOTBZYXATLXQRKOM4VDBXFYK

not attested not anchored not stored refs pending

The isomorphism problem for some universal operator algebras

Christopher Ramsey, Kenneth R. Davidson, Orr Shalit

arxiv:1010.0729 v3 · 2010-10-04 · math.OA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TLEOTBZYXATLXQRKOM4VDBXFYK}

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	2026-05-18T04:18:22.356442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ac8e98738b826bbc22a73395186e5c2a9d46ff1aca97c6d5b7000c0a40d9961

Aliases

arxiv: 1010.0729 · arxiv_version: 1010.0729v3 · doi: 10.48550/arxiv.1010.0729 · pith_short_12: TLEOTBZYXATL · pith_short_16: TLEOTBZYXATLXQRK · pith_short_8: TLEOTBZY

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/TLEOTBZYXATLXQRKOM4VDBXFYK \
  | 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: 9ac8e98738b826bbc22a73395186e5c2a9d46ff1aca97c6d5b7000c0a40d9961

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eadbc97abbd06d0c576fa2d9db5cc5a803eb70a90a77b211fd7f0fea6b75b8c",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2010-10-04T23:33:01Z",
    "title_canon_sha256": "0e229c073967d4ab1ce60a9774dc9b0b4898c09eff501da8a44e3df0dfb63c96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0729",
    "kind": "arxiv",
    "version": 3
  }
}