Pith Number

pith:HXD7E7UJ

pith:2009:HXD7E7UJIPFU7OKGZCNMB4OXVS

not attested not anchored not stored refs pending

QMA-complete problems for stoquastic Hamiltonians and Markov matrices

David Gosset, Peter J. Love, Stephen P. Jordan

arxiv:0905.4755 v2 · 2009-05-28 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXD7E7UJIPFU7OKGZCNMB4OXVS}

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	2026-05-18T03:23:59.874216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dc7f27e8943cb4fb946c89ac0f1d7ac9e85c816571ba4c578d2c6a9f13ceabc

Aliases

arxiv: 0905.4755 · arxiv_version: 0905.4755v2 · doi: 10.48550/arxiv.0905.4755 · pith_short_12: HXD7E7UJIPFU · pith_short_16: HXD7E7UJIPFU7OKG · pith_short_8: HXD7E7UJ

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/HXD7E7UJIPFU7OKGZCNMB4OXVS \
  | 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: 3dc7f27e8943cb4fb946c89ac0f1d7ac9e85c816571ba4c578d2c6a9f13ceabc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941ad0421f70453328d7a07ef2c5ddb2bac8dec17b4782d1f77aad089fefcfe4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-28T21:47:53Z",
    "title_canon_sha256": "46612c0f8dd13a5a72ee063468470a3e55fc55a3f9b8ba322d84761060e13253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4755",
    "kind": "arxiv",
    "version": 2
  }
}