Pith Number

pith:WK2CKZHT

pith:2021:WK2CKZHTLPX5B777RE5NIJP25N

not attested not anchored not stored refs pending

Spectrally multiplexed heralded single photon source at telecom-band

Chenzhi Yuan, Guang-Can Guo, Guangwei Deng, Haizhi Song, Hao Li, Hao Yu, Lixing You, Qiang Zhou, Ruiming Zhang, You Wang, Zhiming Wang, Zichang Zhang

arxiv:2104.02593 v1 · 2021-04-06 · 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{WK2CKZHTLPX5B777RE5NIJP25N}

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	2026-07-05T04:56:32.676402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2b42564f35befd0ffff893ad425faeb41232cb64e90c1b6fb2e2c248933bd38

Aliases

arxiv: 2104.02593 · arxiv_version: 2104.02593v1 · doi: 10.48550/arxiv.2104.02593 · pith_short_12: WK2CKZHTLPX5 · pith_short_16: WK2CKZHTLPX5B777 · pith_short_8: WK2CKZHT

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/WK2CKZHTLPX5B777RE5NIJP25N \
  | 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: b2b42564f35befd0ffff893ad425faeb41232cb64e90c1b6fb2e2c248933bd38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ece49f655a61056875840af8557ba619c91d885ee0ff11d7aae8c83b4dadfd9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-04-06T15:31:08Z",
    "title_canon_sha256": "b6dde326b8e03ed2097d18914cae834a2a1be5c53af5a4cbed17b8f708e62df4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.02593",
    "kind": "arxiv",
    "version": 1
  }
}