Pith Number

pith:LQRBKEPG

pith:2014:LQRBKEPGCH2C4FKZNF274R75TJ

not attested not anchored not stored refs pending

A protocol to estimate the average fidelity of the bipartite system

Long Huang, Xiaohua Wu

arxiv:1404.0156 v1 · 2014-04-01 · 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{LQRBKEPGCH2C4FKZNF274R75TJ}

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	2026-05-18T01:31:46.691683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c221511e611f42e15596975fe47fd9a4d2fa06bd2e5dc9824a58e22e988a536

Aliases

arxiv: 1404.0156 · arxiv_version: 1404.0156v1 · doi: 10.48550/arxiv.1404.0156 · pith_short_12: LQRBKEPGCH2C · pith_short_16: LQRBKEPGCH2C4FKZ · pith_short_8: LQRBKEPG

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/LQRBKEPGCH2C4FKZNF274R75TJ \
  | 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: 5c221511e611f42e15596975fe47fd9a4d2fa06bd2e5dc9824a58e22e988a536

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11f755e8f735c691ddc2d0eaf5b66bbb1d0f6436b5e82f878f416bee1049d081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-01T08:08:35Z",
    "title_canon_sha256": "4a06d60b63f961524a154adab5fa27099fad2e01b3b57215e3d987c98a3fe425"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0156",
    "kind": "arxiv",
    "version": 1
  }
}