Pith Number

pith:ORHVRG5E

pith:2017:ORHVRG5EC4O3BMQZYWP4LJZSZF

not attested not anchored not stored refs pending

\'Etale groupoids and their $C^*$-algebras

Aidan Sims

arxiv:1710.10897 v2 · 2017-10-30 · 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{ORHVRG5EC4O3BMQZYWP4LJZSZF}

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	2026-05-18T00:04:05.060592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

744f589ba4171db0b219c59fc5a732c9520b0a19a04e64e7b4cd797a4248cb1f

Aliases

arxiv: 1710.10897 · arxiv_version: 1710.10897v2 · doi: 10.48550/arxiv.1710.10897 · pith_short_12: ORHVRG5EC4O3 · pith_short_16: ORHVRG5EC4O3BMQZ · pith_short_8: ORHVRG5E

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/ORHVRG5EC4O3BMQZYWP4LJZSZF \
  | 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: 744f589ba4171db0b219c59fc5a732c9520b0a19a04e64e7b4cd797a4248cb1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2187ae8005dd50e59ad7858a3ec2c2f8369f77737455ce99026b10f1aae4139",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-10-30T12:28:54Z",
    "title_canon_sha256": "bf2a4c11a5c3285e2c8838150fba3e570ceeacdf9a85a574d7b9c7a0cad23625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10897",
    "kind": "arxiv",
    "version": 2
  }
}