Pith Number

pith:ROOXRER3

pith:2026:ROOXRER3RW3ZVQAJASNCA3BRZJ

not attested not anchored not stored refs pending

From Barren Plateaus to SPSA Optimization in Variational Quantum Eigensolvers

Zhen Qin

arxiv:2608.09810 v1 · 2026-08-10 · quant-ph · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ROOXRER3RW3ZVQAJASNCA3BRZJ}

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	2026-08-11T02:25:08.619588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b9d78923b8db79ac009049a206c31ca672e0f7938f737cf567883b81a2e1dd1

Aliases

arxiv: 2608.09810 · arxiv_version: 2608.09810v1 · doi: 10.48550/arxiv.2608.09810 · pith_short_12: ROOXRER3RW3Z · pith_short_16: ROOXRER3RW3ZVQAJ · pith_short_8: ROOXRER3

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/ROOXRER3RW3ZVQAJASNCA3BRZJ \
  | 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: 8b9d78923b8db79ac009049a206c31ca672e0f7938f737cf567883b81a2e1dd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a438f8439c745e2b84c98224299e8e3ab8ade35e588994ede93fa43f1bd24452",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-08-10T16:31:32Z",
    "title_canon_sha256": "7e81a7ab08ed9a0cc37cd1c3b6f539ca6650cef62a1c1df94224d160a9e7f895"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09810",
    "kind": "arxiv",
    "version": 1
  }
}