Pith Number

pith:EUXXKYBJ

pith:2014:EUXXKYBJYE5YPYPQX3TYCII6BE

not attested not anchored not stored refs pending

Quantising proper actions on Spin$^c$-manifolds

Peter Hochs, Varghese Mathai

arxiv:1408.0085 v4 · 2014-08-01 · math.DG · math.KT · 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{EUXXKYBJYE5YPYPQX3TYCII6BE}

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	2026-05-18T00:36:41.772148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

252f756029c13b87e1f0bee781211e09154768bf6735d3a31f9e87090c2a8839

Aliases

arxiv: 1408.0085 · arxiv_version: 1408.0085v4 · doi: 10.48550/arxiv.1408.0085 · pith_short_12: EUXXKYBJYE5Y · pith_short_16: EUXXKYBJYE5YPYPQ · pith_short_8: EUXXKYBJ

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/EUXXKYBJYE5YPYPQX3TYCII6BE \
  | 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: 252f756029c13b87e1f0bee781211e09154768bf6735d3a31f9e87090c2a8839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb6e5a12c72b8237087559d249ed14c75d271e730fc9a58f64e43db66cf4ab9",
    "cross_cats_sorted": [
      "math.KT",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-08-01T06:14:17Z",
    "title_canon_sha256": "517bb2f87d765cbd9d1004c90e20c05efc76e0cb5d3ccbb09760ff62e1161d66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0085",
    "kind": "arxiv",
    "version": 4
  }
}