Pith Number

pith:QIKLHSYU

pith:2016:QIKLHSYU7ILRL5KRK44YT2PMBJ

not attested not anchored not stored refs pending

Just-infinite C*-algebras

Magdalena Musat, Mikael R{\o}rdam, Rostislav Grigorchuk

arxiv:1604.08774 v3 · 2016-04-29 · math.OA · 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{QIKLHSYU7ILRL5KRK44YT2PMBJ}

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	2026-05-18T00:47:29.248298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8214b3cb14fa1715f551573989e9ec0a443e6ca79d95d9a3b2e0eba0701200d0

Aliases

arxiv: 1604.08774 · arxiv_version: 1604.08774v3 · doi: 10.48550/arxiv.1604.08774 · pith_short_12: QIKLHSYU7ILR · pith_short_16: QIKLHSYU7ILRL5KR · pith_short_8: QIKLHSYU

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/QIKLHSYU7ILRL5KRK44YT2PMBJ \
  | 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: 8214b3cb14fa1715f551573989e9ec0a443e6ca79d95d9a3b2e0eba0701200d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "158ac5505addaed8858c7982be5ba674046aa48f2a886c6ad87159c3365e335e",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2016-04-29T11:10:29Z",
    "title_canon_sha256": "e664c35938e4caaf2c5aa0206dbb347bab7de5917d4bf150955756ef2db6a122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08774",
    "kind": "arxiv",
    "version": 3
  }
}