Pith Number

pith:EJCX4DF7

pith:2015:EJCX4DF7LXYFCEBD5U2YKY6XNA

not attested not anchored not stored refs pending

A Quantum Key Distribution Protocol for qudits with better noise resistance

Fran\c{c}ois Arnault, Zo\'e Amblard

arxiv:1504.08161 v1 · 2015-04-30 · 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{EJCX4DF7LXYFCEBD5U2YKY6XNA}

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	2026-05-18T02:17:23.174490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22457e0cbf5df0511023ed358563d768124c883fb8ceedcba94fa49be899221c

Aliases

arxiv: 1504.08161 · arxiv_version: 1504.08161v1 · doi: 10.48550/arxiv.1504.08161 · pith_short_12: EJCX4DF7LXYF · pith_short_16: EJCX4DF7LXYFCEBD · pith_short_8: EJCX4DF7

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/EJCX4DF7LXYFCEBD5U2YKY6XNA \
  | 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: 22457e0cbf5df0511023ed358563d768124c883fb8ceedcba94fa49be899221c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e12a1caad940dbbfce8f6135a85911b7289fcff1df144526d457dad96b067819",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-30T10:39:37Z",
    "title_canon_sha256": "8f5829b47efd438facf02edfb9a3cc02ba2fd7cf0fd13fa83bd94b20419622eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08161",
    "kind": "arxiv",
    "version": 1
  }
}