Pith Number

pith:BWCKQD4E

pith:2026:BWCKQD4E3GL5OH5BGJR5MG3BEW

not attested not anchored not stored refs pending

On-Chip Generation of Co-Polarized and Spectrally Separable Photon Pairs

Di Zhu, Guangxing Wu, Hao Hao, Lin Zhou, Ran Yang, Sakthi Sanjeev Mohanraj, Sihao Wang, Veerendra Dhyani, Xiaodong Shi, Xiaojie Wang, Xu Chen, Yue Li, Zhuoyang Yu

arxiv:2601.13740 v1 · 2026-01-20 · 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{BWCKQD4E3GL5OH5BGJR5MG3BEW}

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	2026-06-30T01:17:32.760509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d84a80f84d997d71fa13263d61b6125a5dc65d13a037a83b2b4bd90f2e225f4

Aliases

arxiv: 2601.13740 · arxiv_version: 2601.13740v1 · doi: 10.48550/arxiv.2601.13740 · pith_short_12: BWCKQD4E3GL5 · pith_short_16: BWCKQD4E3GL5OH5B · pith_short_8: BWCKQD4E

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/BWCKQD4E3GL5OH5BGJR5MG3BEW \
  | 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: 0d84a80f84d997d71fa13263d61b6125a5dc65d13a037a83b2b4bd90f2e225f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48ba061d7ea4ee75cb22e8165365e4c769ab9d4fa092fe5cc041e44c6f6a9d0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-01-20T08:54:51Z",
    "title_canon_sha256": "76f1b40b8aa5d44a9c3469691fb734a511c874bec34b2baafd3164d9e778043a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.13740",
    "kind": "arxiv",
    "version": 1
  }
}