Pith Number

pith:EWOTSKCW

pith:2017:EWOTSKCWFX454RA7DECINEZZWH

not attested not anchored not stored refs pending

Experimental long-distance quantum secure direct communication

Feng Zhu, Wei Zhang, Yidong Huang, Yubo Sheng

arxiv:1710.07951 v1 · 2017-10-22 · 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{EWOTSKCWFX454RA7DECINEZZWH}

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	2026-05-18T00:32:19.330704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259d3928562df9de441f1904869339b1f916708c28dee1ec07969f2f3485f26e

Aliases

arxiv: 1710.07951 · arxiv_version: 1710.07951v1 · doi: 10.48550/arxiv.1710.07951 · pith_short_12: EWOTSKCWFX45 · pith_short_16: EWOTSKCWFX454RA7 · pith_short_8: EWOTSKCW

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/EWOTSKCWFX454RA7DECINEZZWH \
  | 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: 259d3928562df9de441f1904869339b1f916708c28dee1ec07969f2f3485f26e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13f8d445dada9434ab5a3ebcb2ff645c61cd93ff8cd194fe22a3b8de358cb919",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-10-22T14:45:43Z",
    "title_canon_sha256": "453a106fbc701b41a37467bfde01c537cfb927aa697fcc34265053efbd7326de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07951",
    "kind": "arxiv",
    "version": 1
  }
}