Pith Number

pith:Z2H7UV7E

pith:2020:Z2H7UV7EKYCQMEVRPW4QLN4MDM

not attested not anchored not stored refs pending

Mid-infrared spectrally-uncorrelated biphotons generation from doped PPLN: a theoretical investigation

Bei Wei, Chunling Ding, Guang-Wei Deng, Qiang Zhou, Rui-Bo Jin, Ryosuke Shimizu, Wu-Hao Cai

arxiv:2012.09352 v1 · 2020-12-17 · 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{Z2H7UV7EKYCQMEVRPW4QLN4MDM}

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	2026-07-05T02:01:33.512904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce8ffa57e456050612b17db905b78c1b3beab6e90b8f38be38530ad26b4cc055

Aliases

arxiv: 2012.09352 · arxiv_version: 2012.09352v1 · doi: 10.48550/arxiv.2012.09352 · pith_short_12: Z2H7UV7EKYCQ · pith_short_16: Z2H7UV7EKYCQMEVR · pith_short_8: Z2H7UV7E

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/Z2H7UV7EKYCQMEVRPW4QLN4MDM \
  | 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: ce8ffa57e456050612b17db905b78c1b3beab6e90b8f38be38530ad26b4cc055

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6760311d03443c2bbb98fbe7aee2b6235058539f9f518bc0723da35b3fa3e1bf",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-12-17T01:54:39Z",
    "title_canon_sha256": "e8c0625b53c484087e9dd3921009e559f9714c03b931894fa571465c8b10ab84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.09352",
    "kind": "arxiv",
    "version": 1
  }
}