Pith Number

pith:ZCX5B7CQ

pith:2026:ZCX5B7CQTALUZTVUSXK43FDDON

not attested not anchored not stored refs pending

Estimating the concurrence for quantum states via symmetric measurements

Hao-Fan Wang, Lin Chen, Li Xu, Shao-Ming Fei, Wen Zhou

arxiv:2606.31010 v1 · 2026-06-30 · 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{ZCX5B7CQTALUZTVUSXK43FDDON}

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	2026-07-01T00:17:24.129565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8afd0fc5098174cceb495d5cd9463737f8dd9c4427f0642ebe7eaf9c8950575

Aliases

arxiv: 2606.31010 · arxiv_version: 2606.31010v1 · doi: 10.48550/arxiv.2606.31010 · pith_short_12: ZCX5B7CQTALU · pith_short_16: ZCX5B7CQTALUZTVU · pith_short_8: ZCX5B7CQ

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/ZCX5B7CQTALUZTVUSXK43FDDON \
  | 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: c8afd0fc5098174cceb495d5cd9463737f8dd9c4427f0642ebe7eaf9c8950575

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "020bc9770390a69cf1cb16926fd5e94edf1f6e4e798788afb0f5f092d3fd2c45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-30T00:54:38Z",
    "title_canon_sha256": "6e7c1054584008f09e08064200ec91fc6a7c4f74b6d2a10ce2ae1c298028a854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31010",
    "kind": "arxiv",
    "version": 1
  }
}