Pith Number

pith:OUVRN72Z

pith:2013:OUVRN72Z55F4LL6LZN6HTAAZPA

not attested not anchored not stored refs pending

On the K-theory of groups with Finite Decomposition Complexity

Daniel Kasprowski

arxiv:1304.4263 v2 · 2013-04-15 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUVRN72Z55F4LL6LZN6HTAAZPA}

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	2026-05-18T01:36:21.140149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

752b16ff59ef4bc5afcbcb7c798019781c94c1618357a1a9e9412f29f009fdd4

Aliases

arxiv: 1304.4263 · arxiv_version: 1304.4263v2 · doi: 10.48550/arxiv.1304.4263 · pith_short_12: OUVRN72Z55F4 · pith_short_16: OUVRN72Z55F4LL6L · pith_short_8: OUVRN72Z

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/OUVRN72Z55F4LL6LZN6HTAAZPA \
  | 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: 752b16ff59ef4bc5afcbcb7c798019781c94c1618357a1a9e9412f29f009fdd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5c70b2e9a5b2175c5b7219ab7c1672c1f0377feb1fc3fbf6df1e9aaabbbb431",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2013-04-15T20:51:23Z",
    "title_canon_sha256": "4d423695e5f0968979d7e848c56c192759c8cdb83a0ad3018020156a036f011d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4263",
    "kind": "arxiv",
    "version": 2
  }
}