Pith Number

pith:PQR33XBL

pith:2022:PQR33XBLS7TV2JD53GIJK5G3BW

not attested not anchored not stored refs pending

Twin-field quantum key distribution without optical frequency dissemination

Jinping Lin, Lai Zhou, Yumang Jing, Zhiliang Yuan

arxiv:2208.09347 v2 · 2022-08-19 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQR33XBLS7TV2JD53GIJK5G3BW}

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	2026-07-05T05:56:39.275986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c23bddc2b97e75d247dd9909574db0db4688de744db641521e4365885e2b93b

Aliases

arxiv: 2208.09347 · arxiv_version: 2208.09347v2 · doi: 10.48550/arxiv.2208.09347 · pith_short_12: PQR33XBLS7TV · pith_short_16: PQR33XBLS7TV2JD5 · pith_short_8: PQR33XBL

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/PQR33XBLS7TV2JD53GIJK5G3BW \
  | 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: 7c23bddc2b97e75d247dd9909574db0db4688de744db641521e4365885e2b93b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70bc8c16158b0a9b31aa0cf740b4f6e06053adbfb50c35bcd4e1dc6360945348",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-08-19T13:56:14Z",
    "title_canon_sha256": "be73238d42af81cd6aa079f0f60975433d5d1000d4d68a19ff1387a536a1fca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.09347",
    "kind": "arxiv",
    "version": 2
  }
}