Pith Number

pith:SDNU34OB

pith:2014:SDNU34OBVNNQ54PAG24ACUJMI6

not attested not anchored not stored refs pending

Emission of OAM entangled photon pairs in a nonlinear ring fiber utilizing spontaneous parametric down-conversion

D. Jav\r{u}rek, J. Pe\v{r}ina Jr, J. Svozil\'ik

arxiv:1409.8552 v1 · 2014-09-30 · 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{SDNU34OBVNNQ54PAG24ACUJMI6}

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	2026-05-18T02:41:25.072073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90db4df1c1ab5b0ef1e036b801512c4797c8c1ecaa753268d72ad77d46b3e8ce

Aliases

arxiv: 1409.8552 · arxiv_version: 1409.8552v1 · doi: 10.48550/arxiv.1409.8552 · pith_short_12: SDNU34OBVNNQ · pith_short_16: SDNU34OBVNNQ54PA · pith_short_8: SDNU34OB

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/SDNU34OBVNNQ54PAG24ACUJMI6 \
  | 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: 90db4df1c1ab5b0ef1e036b801512c4797c8c1ecaa753268d72ad77d46b3e8ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99a52da6467dcc6741d7e4e38b25395400dfab7b1984860b70fe6e344de25375",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-30T13:59:29Z",
    "title_canon_sha256": "a5a947f9e4b3144659184e65a96dd889fa7e427108581dd0d3ac6dc9a5ebd979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8552",
    "kind": "arxiv",
    "version": 1
  }
}