Pith Number

pith:VLH76D6Z

pith:2018:VLH76D6ZYSIT2QB3UPSSWWEYSO

not attested not anchored not stored refs pending

Certifying quantumness with the classical fidelity threshold

Long Huang, Tao Zhou, Xiaohua Wu

arxiv:1807.05775 v1 · 2018-07-16 · 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{VLH76D6ZYSIT2QB3UPSSWWEYSO}

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	2026-05-18T00:10:42.576310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aacfff0fd9c4913d403ba3e52b589893b0094816342063d88d132b3c5bced853

Aliases

arxiv: 1807.05775 · arxiv_version: 1807.05775v1 · doi: 10.48550/arxiv.1807.05775 · pith_short_12: VLH76D6ZYSIT · pith_short_16: VLH76D6ZYSIT2QB3 · pith_short_8: VLH76D6Z

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/VLH76D6ZYSIT2QB3UPSSWWEYSO \
  | 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: aacfff0fd9c4913d403ba3e52b589893b0094816342063d88d132b3c5bced853

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af864b25e219767d77295baa149a677d99fa9bca3bb83308d199f176b08c9c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-16T10:36:40Z",
    "title_canon_sha256": "fb6ff344df1863f00895a0cf3820e76d96e8aab05d76d7cf11c8ccaa8625e1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05775",
    "kind": "arxiv",
    "version": 1
  }
}