Pith Number

pith:5MXUCRC2

pith:2018:5MXUCRC22WTDJA5TPEKV7PTJK6

not attested not anchored not stored refs pending

Ultrabright narrow-band telecom two-photon source for long-distance quantum communication

Hideo Kosaka, Kazuya Niizeki, Kohei Ikeda, Kotaro Okamura, Mingyang Zheng, Naoto Namekata, Nobuyuki Takei, Shuichiro Inoue, Tomoyuki Horikiri, Xiuping Xie

arxiv:1803.07749 v1 · 2018-03-21 · 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{5MXUCRC22WTDJA5TPEKV7PTJK6}

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	2026-05-18T00:20:29.095755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb2f41445ad5a63483b379155fbe6957b12c859a0a3972173fcd90dbb64d2700

Aliases

arxiv: 1803.07749 · arxiv_version: 1803.07749v1 · doi: 10.48550/arxiv.1803.07749 · pith_short_12: 5MXUCRC22WTD · pith_short_16: 5MXUCRC22WTDJA5T · pith_short_8: 5MXUCRC2

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/5MXUCRC22WTDJA5TPEKV7PTJK6 \
  | 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: eb2f41445ad5a63483b379155fbe6957b12c859a0a3972173fcd90dbb64d2700

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee462518e7165e962338ba95b79f2982c15d3d79faaf02fddfbe78a9894365ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-03-21T05:20:16Z",
    "title_canon_sha256": "53787eeb29f9b9326cbf2fcf31b84cc059602b20df427fdba43356c2db1ff177"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07749",
    "kind": "arxiv",
    "version": 1
  }
}