Pith Number

pith:RFF4SAZY

pith:2013:RFF4SAZY6RLJYZR2PU3QKSCY4B

not attested not anchored not stored refs pending

Nonseparable UHF algebras II: Classification

Ilijas Farah, Takeshi Katsura

arxiv:1301.6152 v1 · 2013-01-25 · math.OA · 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{RFF4SAZY6RLJYZR2PU3QKSCY4B}

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	2026-05-18T03:35:26.925336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

894bc90338f4569c663a7d37054858e07ac4c11f38608be1a1a7ffa8282a568f

Aliases

arxiv: 1301.6152 · arxiv_version: 1301.6152v1 · doi: 10.48550/arxiv.1301.6152 · pith_short_12: RFF4SAZY6RLJ · pith_short_16: RFF4SAZY6RLJYZR2 · pith_short_8: RFF4SAZY

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/RFF4SAZY6RLJYZR2PU3QKSCY4B \
  | 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: 894bc90338f4569c663a7d37054858e07ac4c11f38608be1a1a7ffa8282a568f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aadd6c8fd629a78fc7f0a608ef98821d7be70f76b22280dd51f1f392022f91db",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2013-01-25T20:17:47Z",
    "title_canon_sha256": "93fa894ef4f0317acd196184f08d9717f0f669dcb400acf40e9e748abaa86269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6152",
    "kind": "arxiv",
    "version": 1
  }
}