Pith Number

pith:LNHBVVU2

pith:2011:LNHBVVU2EL2Q7TIFJ4F745PGBA

not attested not anchored not stored refs pending

The period-index problem for twisted topological K-theory

Benjamin Antieau, Ben Williams

arxiv:1104.4654 v2 · 2011-04-24 · math.KT · math.AT

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LNHBVVU2EL2Q7TIFJ4F745PGBA}

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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	2026-05-18T02:38:18.175674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b4e1ad69a22f50fcd054f0bfe75e6082e3607e2810cd4c7799b55e6e1d7c008

Aliases

arxiv: 1104.4654 · arxiv_version: 1104.4654v2 · doi: 10.48550/arxiv.1104.4654 · pith_short_12: LNHBVVU2EL2Q · pith_short_16: LNHBVVU2EL2Q7TIF · pith_short_8: LNHBVVU2

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/LNHBVVU2EL2Q7TIFJ4F745PGBA \
  | 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: 5b4e1ad69a22f50fcd054f0bfe75e6082e3607e2810cd4c7799b55e6e1d7c008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43e7ad5226e55908fbbf37e35529cd1432025b6ad7b6234e9e2dd5cf0ebb99a2",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2011-04-24T20:58:35Z",
    "title_canon_sha256": "ce170b2a3867d21f1cdcdf385bff2316f70aa9727643dfbeb7f7b5a10269c9a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4654",
    "kind": "arxiv",
    "version": 2
  }
}