Pith Number

pith:NR5SBSRF

pith:2005:NR5SBSRFPFFXD74KH3N5ZKUZ2N

not attested not anchored not stored refs pending

A Three-Stage Quantum Cryptography Protocol

Subhash Kak

arxiv:quant-ph/0503027 v2 · 2005-03-02 · quant-ph · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NR5SBSRFPFFXD74KH3N5ZKUZ2N}

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	2026-05-18T03:49:20.195073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c7b20ca25794b71ff8a3edbdcaa99d364c04326562fc8ea781fd96d2d60675d

Aliases

arxiv: quant-ph/0503027 · arxiv_version: quant-ph/0503027v2 · doi: 10.48550/arxiv.quant-ph/0503027 · pith_short_12: NR5SBSRFPFFX · pith_short_16: NR5SBSRFPFFXD74K · pith_short_8: NR5SBSRF

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/NR5SBSRFPFFXD74KH3N5ZKUZ2N \
  | 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: 6c7b20ca25794b71ff8a3edbdcaa99d364c04326562fc8ea781fd96d2d60675d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c46632775fddad13ae124385359f29575383d494bbd3d4d51add902d6903886",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-03-02T20:21:56Z",
    "title_canon_sha256": "3a8695cdc455ddbe64ecd88272a72886d99cc40d837341885db11ffe3722df57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0503027",
    "kind": "arxiv",
    "version": 2
  }
}