Pith Number

pith:U4XCWEDV

pith:2018:U4XCWEDVKB7YVNUULZE5KV7RRF

not attested not anchored not stored refs pending

Effective Eavesdropping to Twin Field Quantum Key Distribution

Xiang-Bin Wang, Xiao-Long Hu, Zong-Wen Yu

arxiv:1805.02272 v1 · 2018-05-06 · 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{U4XCWEDVKB7YVNUULZE5KV7RRF}

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	2026-05-18T00:16:40.366972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a72e2b1075507f8ab6945e49d557f18949d721357d703917a1a949d431d3cd1e

Aliases

arxiv: 1805.02272 · arxiv_version: 1805.02272v1 · doi: 10.48550/arxiv.1805.02272 · pith_short_12: U4XCWEDVKB7Y · pith_short_16: U4XCWEDVKB7YVNUU · pith_short_8: U4XCWEDV

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/U4XCWEDVKB7YVNUULZE5KV7RRF \
  | 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: a72e2b1075507f8ab6945e49d557f18949d721357d703917a1a949d431d3cd1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72aebffbebe1d54de8638430a4a0798753b129210b66ea57ca078ef88b367f24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-06T20:01:56Z",
    "title_canon_sha256": "db2ed2c64ed011bed43ef94f191a4f72992cf2c68273d54a62b201ba9322e529"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02272",
    "kind": "arxiv",
    "version": 1
  }
}