Pith Number

pith:TCGQVY3I

pith:2005:TCGQVY3IPE57UJ7LYHJNJBBSFO

not attested not anchored not stored refs pending

Quantum key distribution based on arbitrarily-weak distillable entangled states

Debbie Leung, Hoi-Kwong Lo, Jonathan Oppenheim, Karol Horodecki

arxiv:quant-ph/0510067 v2 · 2005-10-10 · 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{TCGQVY3IPE57UJ7LYHJNJBBSFO}

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	2026-07-04T16:58:10.383075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

988d0ae368793bfa27ebc1d2d484322b83890de816063035d2448a7a9d157d79

Aliases

arxiv: quant-ph/0510067 · arxiv_version: quant-ph/0510067v2 · doi: 10.48550/arxiv.quant-ph/0510067 · pith_short_12: TCGQVY3IPE57 · pith_short_16: TCGQVY3IPE57UJ7L · pith_short_8: TCGQVY3I

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/TCGQVY3IPE57UJ7LYHJNJBBSFO \
  | 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: 988d0ae368793bfa27ebc1d2d484322b83890de816063035d2448a7a9d157d79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fbc38682cede5e8b77e3df02ca9dd607e73ebf12390e55160080f3366e4a794",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-10-10T20:12:56Z",
    "title_canon_sha256": "3721f743e191e62612ddd7fadc4d36e63027882c41135a7303653859addd36fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0510067",
    "kind": "arxiv",
    "version": 2
  }
}