Pith Number

pith:ZEILQY6U

pith:2003:ZEILQY6UBEPLM6MVWVJ6YIXCQM

not attested not anchored not stored refs pending

Tomographic Quantum Cryptography: Equivalence of Quantum and Classical Key Distillation

Artur Ekert, Berthold-Georg Englert, Chiara Macchiavello, Dagmar Bruss, Dagomir Kaszlikowski, Matthias Christandl

arxiv:quant-ph/0303184 v1 · 2003-03-31 · 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{ZEILQY6UBEPLM6MVWVJ6YIXCQM}

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	2026-07-04T16:42:27.967837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c910b863d4091eb67995b553ec22e2831d3bd3cce60eaa7b4fbbf588ea54e7b8

Aliases

arxiv: quant-ph/0303184 · arxiv_version: quant-ph/0303184v1 · doi: 10.48550/arxiv.quant-ph/0303184 · pith_short_12: ZEILQY6UBEPL · pith_short_16: ZEILQY6UBEPLM6MV · pith_short_8: ZEILQY6U

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/ZEILQY6UBEPLM6MVWVJ6YIXCQM \
  | 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: c910b863d4091eb67995b553ec22e2831d3bd3cce60eaa7b4fbbf588ea54e7b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d14dd20a2ce83388fd46cce3b21f41ebfdc4d541a91dce0ffaa580c61b27b77f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-03-31T15:45:58Z",
    "title_canon_sha256": "40953f3e0ffd77860d8701cb7e9c140ce83ea7839add29a3ea30972d24d23a65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0303184",
    "kind": "arxiv",
    "version": 1
  }
}