Pith Number

pith:WOAQRRXP

pith:2012:WOAQRRXPSKQZD7JTV2XKFNTRNW

not attested not anchored not stored refs pending

Passive optical switching of photon pairs using a spontaneous parametric fiber loop

Lei Yang, Ningbo Zhao, Xiaoying Li

arxiv:1203.0212 v1 · 2012-03-01 · 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{WOAQRRXPSKQZD7JTV2XKFNTRNW}

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	2026-05-18T01:58:17.819546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b38108c6ef92a191fd33aeaea2b6716d8367a6611862b9bd9a9b8f2817d623ad

Aliases

arxiv: 1203.0212 · arxiv_version: 1203.0212v1 · doi: 10.48550/arxiv.1203.0212 · pith_short_12: WOAQRRXPSKQZ · pith_short_16: WOAQRRXPSKQZD7JT · pith_short_8: WOAQRRXP

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/WOAQRRXPSKQZD7JTV2XKFNTRNW \
  | 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: b38108c6ef92a191fd33aeaea2b6716d8367a6611862b9bd9a9b8f2817d623ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eba91e2eff6263a39cf5d7e6ee689a1b4b7333b9b1808fff69f0cea3b97bbc0",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-03-01T15:22:41Z",
    "title_canon_sha256": "f5305cd38823fc2cfbc3178c9cd4a9f57c2c080616b95441089c88ad8754e59a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0212",
    "kind": "arxiv",
    "version": 1
  }
}