Pith Number

pith:SV2HHJBW

pith:2006:SV2HHJBWUOVJHLUAMANZAFN4KD

not attested not anchored not stored refs pending

Quantum secure communication scheme with W state

Chao-jing Tang, Jian Wang, Quan Zhang

arxiv:quant-ph/0603144 v1 · 2006-03-16 · 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{SV2HHJBWUOVJHLUAMANZAFN4KD}

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	2026-05-18T01:37:56.994539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

957473a436a3aa93ae80601b9015bc50c24a6b8a2c39633e8083b18607426da4

Aliases

arxiv: quant-ph/0603144 · arxiv_version: quant-ph/0603144v1 · doi: 10.48550/arxiv.quant-ph/0603144 · pith_short_12: SV2HHJBWUOVJ · pith_short_16: SV2HHJBWUOVJHLUA · pith_short_8: SV2HHJBW

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/SV2HHJBWUOVJHLUAMANZAFN4KD \
  | 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: 957473a436a3aa93ae80601b9015bc50c24a6b8a2c39633e8083b18607426da4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9fc9b8274786b6a5e6beddab5600c3e744a9f38d23a7360e019a7c42bc62416",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-03-16T08:01:59Z",
    "title_canon_sha256": "49ecf3a53301da8ce0d9972665a419a86a46539d8ede4ad887ba7baa82cdd6af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0603144",
    "kind": "arxiv",
    "version": 1
  }
}