Pith Number

pith:ML6TLAJR

pith:2007:ML6TLAJRGF4WDYWZ4UZFVOQGT5

not attested not anchored not stored refs pending

Unconditional privacy over channels which cannot convey quantum information

Debbie Leung, Jonathan Oppenheim, Karol Horodecki, Michal Horodecki, Pawel Horodecki

arxiv:quant-ph/0702077 v1 · 2007-02-08 · 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{ML6TLAJRGF4WDYWZ4UZFVOQGT5}

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	2026-07-04T17:08:42.698088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62fd358131317961e2d9e5325aba069f5cfdf8b59d170b2dfb97387b6564a6a2

Aliases

arxiv: quant-ph/0702077 · arxiv_version: quant-ph/0702077v1 · doi: 10.48550/arxiv.quant-ph/0702077 · pith_short_12: ML6TLAJRGF4W · pith_short_16: ML6TLAJRGF4WDYWZ · pith_short_8: ML6TLAJR

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/ML6TLAJRGF4WDYWZ4UZFVOQGT5 \
  | 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: 62fd358131317961e2d9e5325aba069f5cfdf8b59d170b2dfb97387b6564a6a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2a5a331e0df769559c2a0375cc832a95077e8e343f1de8e33d215f7c517a123",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-08T00:54:28Z",
    "title_canon_sha256": "c3d78d4e7b00efe8b131a6c582a4294e19da98d515d3cb529a7dc9264f27d451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702077",
    "kind": "arxiv",
    "version": 1
  }
}