Pith Number

pith:JO33Y4RQ

pith:2010:JO33Y4RQTNULU7WWNCAH2RKLAZ

not attested not anchored not stored refs pending

Equivariant K-theory and the Chern character for discrete groups

Efton Park

arxiv:1010.6271 v1 · 2010-10-29 · 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{JO33Y4RQTNULU7WWNCAH2RKLAZ}

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	2026-05-18T04:38:07.179072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bb7bc72309b68ba7ed668807d454b064d0f3ea6156106ba11b9372059021e60

Aliases

arxiv: 1010.6271 · arxiv_version: 1010.6271v1 · doi: 10.48550/arxiv.1010.6271 · pith_short_12: JO33Y4RQTNUL · pith_short_16: JO33Y4RQTNULU7WW · pith_short_8: JO33Y4RQ

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/JO33Y4RQTNULU7WWNCAH2RKLAZ \
  | 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: 4bb7bc72309b68ba7ed668807d454b064d0f3ea6156106ba11b9372059021e60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40694d7e0091181bc3f7f4c645b9575210b6b3e0a003d39622cfd75b81aaffe4",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2010-10-29T16:51:19Z",
    "title_canon_sha256": "12dd1b4d2ed5c6b8db59cb2ce8e918a5c6aeb771716ffb537dae4dacb8289762"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.6271",
    "kind": "arxiv",
    "version": 1
  }
}