Pith Number

pith:QLFGTW5U

pith:2004:QLFGTW5U4ZACR5YQJMWSQHWPPI

not attested not anchored not stored refs pending

Orbital angular momentum exchange in an optical parametric oscillator

A.Z. Khoury, J.A.O. Huguenin, M. Martinelli, P. Nussenzveig

arxiv:physics/0403021 v1 · 2004-03-01 · 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{QLFGTW5U4ZACR5YQJMWSQHWPPI}

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	2026-05-18T04:18:43.883882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82ca69dbb4e64028f7104b2d281ecf7a01e622c233fa90e55fd1231b4801b388

Aliases

arxiv: physics/0403021 · arxiv_version: physics/0403021v1 · doi: 10.48550/arxiv.physics/0403021 · pith_short_12: QLFGTW5U4ZAC · pith_short_16: QLFGTW5U4ZACR5YQ · pith_short_8: QLFGTW5U

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/QLFGTW5U4ZACR5YQJMWSQHWPPI \
  | 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: 82ca69dbb4e64028f7104b2d281ecf7a01e622c233fa90e55fd1231b4801b388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2fb9c183fe8f77768841cc18e8d71356d033abb60b8e69b31e1efa994c2d254",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2004-03-01T21:51:24Z",
    "title_canon_sha256": "24f47d16478e615240cc141bcf8d0a306a233392909b4faf7bec786e96dcb4a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0403021",
    "kind": "arxiv",
    "version": 1
  }
}