Pith Number

pith:OMTUF36N

pith:2012:OMTUF36NAWW63FECVXZE6KLBSS

not attested not anchored not stored refs pending

The Ghost length, levels and shriek maps on classifying spaces

Katsuhiko Kuribayashi

arxiv:1204.0311 v2 · 2012-04-02 · math.AT · math.RA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMTUF36NAWW63FECVXZE6KLBSS}

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	2026-05-18T01:22:03.630703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

732742efcd05aded9482adf24f296194b1a0a9eea7ebf47371d808cbdbc31450

Aliases

arxiv: 1204.0311 · arxiv_version: 1204.0311v2 · doi: 10.48550/arxiv.1204.0311 · pith_short_12: OMTUF36NAWW6 · pith_short_16: OMTUF36NAWW63FEC · pith_short_8: OMTUF36N

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/OMTUF36NAWW63FECVXZE6KLBSS \
  | 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: 732742efcd05aded9482adf24f296194b1a0a9eea7ebf47371d808cbdbc31450

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bfd4c8dcbc76c075b8a926a83bf766508b9d100557589d0a10c5a1a9ba23e52",
    "cross_cats_sorted": [
      "math.RA",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-04-02T05:07:45Z",
    "title_canon_sha256": "e186defea32c7973a4f2419e71484878e37d3318ab1f8ffbdb4ac28911363083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0311",
    "kind": "arxiv",
    "version": 2
  }
}