Pith Number

pith:G3GEH2WM

pith:2019:G3GEH2WMMRUCLDWCVOEKMBZVH3

not attested not anchored not stored refs pending

$4\times4$ unextendible product basis and genuinely entangled space

Kai Wang, Lijun Zhao, Lin Chen, Yumin Guo

arxiv:1901.06093 v1 · 2019-01-18 · 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{G3GEH2WMMRUCLDWCVOEKMBZVH3}

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	2026-05-17T23:56:04.603091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36cc43eacc6468258ec2ab88a607353ec62a7d8a23ee51912ea6f248c36bf83e

Aliases

arxiv: 1901.06093 · arxiv_version: 1901.06093v1 · doi: 10.48550/arxiv.1901.06093 · pith_short_12: G3GEH2WMMRUC · pith_short_16: G3GEH2WMMRUCLDWC · pith_short_8: G3GEH2WM

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/G3GEH2WMMRUCLDWCVOEKMBZVH3 \
  | 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: 36cc43eacc6468258ec2ab88a607353ec62a7d8a23ee51912ea6f248c36bf83e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "466d25c130510f49aeaa3f5c226be5fb7d5747bb02ed640c7ba55679fecd0e54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-01-18T05:44:39Z",
    "title_canon_sha256": "0f913eae0cac8b00e5629f37d0570bae2afd04b4159b27502fc316926649d5fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06093",
    "kind": "arxiv",
    "version": 1
  }
}