Pith Number

pith:VAYXHFUD

pith:2002:VAYXHFUDMQEPIBBJERDMZX6OYL

not attested not anchored not stored refs pending

Femtosecond Time-Bin Entangled Qubits for Quantum Communication

Hugo Zbinden, Hugues de Riedmatten, Ivan Marcikic, Nicolas Gisin, Valerio Scarani, Wolfgang Tittel

arxiv:quant-ph/0205144 v2 · 2002-05-23 · 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{VAYXHFUDMQEPIBBJERDMZX6OYL}

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	2026-05-18T01:05:04.521352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8317396836408f404292446ccdfcec2e83bd35606b310f9e8acbd0ed685b6a1

Aliases

arxiv: quant-ph/0205144 · arxiv_version: quant-ph/0205144v2 · doi: 10.48550/arxiv.quant-ph/0205144 · pith_short_12: VAYXHFUDMQEP · pith_short_16: VAYXHFUDMQEPIBBJ · pith_short_8: VAYXHFUD

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/VAYXHFUDMQEPIBBJERDMZX6OYL \
  | 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: a8317396836408f404292446ccdfcec2e83bd35606b310f9e8acbd0ed685b6a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72ac5dc94d57c77222ba6eb017fcd85e76b042db43ee13f219177e0f3a701cc1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-23T10:23:01Z",
    "title_canon_sha256": "1cf48902122da9c3553173e25dcf356eafcedaf2319aa98fb22ce17d21aa9000"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205144",
    "kind": "arxiv",
    "version": 2
  }
}