Pith Number

pith:FDNBK6RY

pith:2017:FDNBK6RYCPZSB37CMIBG2D5VN5

not attested not anchored not stored refs pending

Topological K-Theory for Hilbert Scheme Analogs

Ammar Husain

arxiv:1801.04976 v1 · 2017-12-12 · math.AT · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDNBK6RYCPZSB37CMIBG2D5VN5}

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	2026-05-18T00:25:50.436021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28da157a3813f320efe262026d0fb56f4a690d3a1f145f8d75081f0981971767

Aliases

arxiv: 1801.04976 · arxiv_version: 1801.04976v1 · doi: 10.48550/arxiv.1801.04976 · pith_short_12: FDNBK6RYCPZS · pith_short_16: FDNBK6RYCPZSB37C · pith_short_8: FDNBK6RY

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/FDNBK6RYCPZSB37CMIBG2D5VN5 \
  | 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: 28da157a3813f320efe262026d0fb56f4a690d3a1f145f8d75081f0981971767

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82b71ef1e414395259696ac38a4348408aeb6fd9ef489570160426f284ebf4a0",
    "cross_cats_sorted": [
      "math.AG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-12-12T18:58:16Z",
    "title_canon_sha256": "bfeb7a7e771c154e140c688c95f371a743375b8a6f0ae9fb87fe1dbe13b15b31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04976",
    "kind": "arxiv",
    "version": 1
  }
}