Pith Number

pith:WGCQLMQ4

pith:2013:WGCQLMQ4EBH4DYW7I6YFM6NUVP

not attested not anchored not stored refs pending

Entanglement-free certification of entangling gates

Alessandro Fedrizzi, Andrew G. White, Marcelo de Almeida, Matthew A. Broome, Mile Gu, Timothy C. Ralph

arxiv:1301.7110 v2 · 2013-01-30 · 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{WGCQLMQ4EBH4DYW7I6YFM6NUVP}

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	2026-05-18T02:49:47.241695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b18505b21c204fc1e2df47b05679b4abfd319bdf088e828875454b5bd364e135

Aliases

arxiv: 1301.7110 · arxiv_version: 1301.7110v2 · doi: 10.48550/arxiv.1301.7110 · pith_short_12: WGCQLMQ4EBH4 · pith_short_16: WGCQLMQ4EBH4DYW7 · pith_short_8: WGCQLMQ4

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/WGCQLMQ4EBH4DYW7I6YFM6NUVP \
  | 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: b18505b21c204fc1e2df47b05679b4abfd319bdf088e828875454b5bd364e135

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49feecddebf25f0cdc672abcf3c76ee02e2fb8f351212600939069e28a05679f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-30T00:24:40Z",
    "title_canon_sha256": "2778aedd0eee33a4f3e3f8ea69ae3a6b40af08e9074cd46a4caef8345c64bcab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7110",
    "kind": "arxiv",
    "version": 2
  }
}