Pith Number

pith:NJAPQQQF

pith:2011:NJAPQQQF44DS4JLDL6HF4LZOHX

not attested not anchored not stored refs pending

Field test of quantum key distribution in the Tokyo QKD Network

A. Allacher, A. J. Shields, A. Poppe, A. R. Dixon, A. Tajima, A. Tanaka, A. Tomita, A. W. Sharpe, A. Zeilinger, G. Ribordy, H. Ishizuka, H. Kobayashi, H. Takesue, J.-B. Page, J. F. Dynes, K. Shimizu, K. Tamaki, K. Wakui, K. Yoshino, L. Monat, M. Fujiwara, M. Legre, M. Matsui, M. Peev, M. Sasaki, M. Takeoka, O. Maurhart, P. Trinkler, S. Robyr, S. Takahashi, S. Uchikoga, T. Asai, T. Domeki, T. Hasegawa, T. Honjo, T. Langer, T. Tokura, T. Tsurumaru, W. Klaus, Y. Nambu, Y. Sakai, Y. Tokura, Z. L. Yuan

arxiv:1103.3566 v1 · 2011-03-18 · 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{NJAPQQQF44DS4JLDL6HF4LZOHX}

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	2026-05-18T02:02:49.985852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a40f84205e7072e25635f8e5e2f2e3dcc31d7987c49c4b047dda1ef055fb9c6

Aliases

arxiv: 1103.3566 · arxiv_version: 1103.3566v1 · doi: 10.48550/arxiv.1103.3566 · pith_short_12: NJAPQQQF44DS · pith_short_16: NJAPQQQF44DS4JLD · pith_short_8: NJAPQQQF

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/NJAPQQQF44DS4JLDL6HF4LZOHX \
  | 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: 6a40f84205e7072e25635f8e5e2f2e3dcc31d7987c49c4b047dda1ef055fb9c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968252f7ac12e2a6b4fc2550c9d72e67948e40f33a0006b7f0f13a3e6f58cf00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-03-18T07:42:54Z",
    "title_canon_sha256": "4f3e341936e4c714c9b7f7f7a115eb6a19a253270250bf29a60206b75fc58dd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3566",
    "kind": "arxiv",
    "version": 1
  }
}