Pith Number

pith:HIUX5UJ3

pith:2021:HIUX5UJ3P5EMG4UFSD6DUESUK2

not attested not anchored not stored refs pending

Broadband-laser-diode pumped PPKTP-Sagnac polarization-entangled photon source

Fang Li, Neng Cai, Rui-Bo Jin, Ryosuke Shimizu, Shun Wang, Wu-Hao Cai

arxiv:2105.00454 v2 · 2021-05-02 · 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{HIUX5UJ3P5EMG4UFSD6DUESUK2}

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	2026-07-05T03:38:59.857160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a297ed13b7f48c3728590fc3a125456b26580753dcd3ab2e2fc13ccd69d775c

Aliases

arxiv: 2105.00454 · arxiv_version: 2105.00454v2 · doi: 10.48550/arxiv.2105.00454 · pith_short_12: HIUX5UJ3P5EM · pith_short_16: HIUX5UJ3P5EMG4UF · pith_short_8: HIUX5UJ3

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/HIUX5UJ3P5EMG4UFSD6DUESUK2 \
  | 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: 3a297ed13b7f48c3728590fc3a125456b26580753dcd3ab2e2fc13ccd69d775c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc9c284c426096a4b672cc3c066ea6724608c9066fa665897119ba003704842b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-05-02T12:13:09Z",
    "title_canon_sha256": "c93ef7769af154f3f3b7995a91d43b795d8a9885fa0d9574666f9477adac824d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.00454",
    "kind": "arxiv",
    "version": 2
  }
}