Pith Number

pith:V6SBTQ5B

pith:2019:V6SBTQ5BARZ5LDX2DTDPZPUDGX

not attested not anchored not stored refs pending

The Quantum Alternating Operator Ansatz on Maximum k-Vertex Cover

Andreas B\"artschi, Jeremy Cook, Stephan Eidenbenz

arxiv:1910.13483 v2 · 2019-10-29 · 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{V6SBTQ5BARZ5LDX2DTDPZPUDGX}

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	2026-07-05T02:54:12.625572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afa419c3a10473d58efa1cc6fcbe8335c33f1907ed0fdb8ff250b7f750e85f22

Aliases

arxiv: 1910.13483 · arxiv_version: 1910.13483v2 · doi: 10.48550/arxiv.1910.13483 · pith_short_12: V6SBTQ5BARZ5 · pith_short_16: V6SBTQ5BARZ5LDX2 · pith_short_8: V6SBTQ5B

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/V6SBTQ5BARZ5LDX2DTDPZPUDGX \
  | 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: afa419c3a10473d58efa1cc6fcbe8335c33f1907ed0fdb8ff250b7f750e85f22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "086542f02cbe0fc808059b37e0710c5cdd519a3354f2f891c050e4ef742ab406",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-10-29T19:14:00Z",
    "title_canon_sha256": "a102a71bfc34e70a6c7c9e9bd49531688de9bbb9e7073bea72e0d5d51dae4fba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.13483",
    "kind": "arxiv",
    "version": 2
  }
}