Pith Number

pith:NROQGOTO

pith:2014:NROQGOTOF6Y2NPVXOZTLKR2I7M

not attested not anchored not stored refs pending

Purely infinite $C^*$-algebras associated to \'etale groupoids

Adam Sierakowski, Jonathan Brown, Lisa Orloff Clark

arxiv:1403.4959 v1 · 2014-03-19 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NROQGOTOF6Y2NPVXOZTLKR2I7M}

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	2026-05-18T02:45:22.208443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c5d033a6e2fb1a6beb77666b54748fb2865b05a505cc1c7d230a7fecf6a21c9

Aliases

arxiv: 1403.4959 · arxiv_version: 1403.4959v1 · doi: 10.48550/arxiv.1403.4959 · pith_short_12: NROQGOTOF6Y2 · pith_short_16: NROQGOTOF6Y2NPVX · pith_short_8: NROQGOTO

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/NROQGOTOF6Y2NPVXOZTLKR2I7M \
  | 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: 6c5d033a6e2fb1a6beb77666b54748fb2865b05a505cc1c7d230a7fecf6a21c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3dbc009e9997eb896a4b612d9a94d5ed222181a2ba7532ea11a61f6df37878d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2014-03-19T20:19:22Z",
    "title_canon_sha256": "a1faa307ba4d9beb465dc4fd9b2c1cf442a7eafa99b8199531c15b2960a994e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4959",
    "kind": "arxiv",
    "version": 1
  }
}