Pith Number

pith:EQ7IRRVL

pith:2022:EQ7IRRVLPWXQCI5TEAY3DRM7FH

not attested not anchored not stored refs pending

Intelligent optoelectronic processor for orbital angular momentum spectrum measurement

Futai Hu, Hao Wang, Qiang Liu, Xing Fu, Yuan Meng, Zeqi Liu, Ziyu Zhan

arxiv:2205.15045 v2 · 2022-05-30 · cs.ET · 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{EQ7IRRVLPWXQCI5TEAY3DRM7FH}

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	2026-07-05T04:54:21.098584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

243e88c6ab7daf0123b32031b1c59f29cb4c7c93f6539c9153addcb0939e97e5

Aliases

arxiv: 2205.15045 · arxiv_version: 2205.15045v2 · doi: 10.48550/arxiv.2205.15045 · pith_short_12: EQ7IRRVLPWXQ · pith_short_16: EQ7IRRVLPWXQCI5T · pith_short_8: EQ7IRRVL

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/EQ7IRRVLPWXQCI5TEAY3DRM7FH \
  | 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: 243e88c6ab7daf0123b32031b1c59f29cb4c7c93f6539c9153addcb0939e97e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f209491dfb4dc3c54e35a5909d219b209318a5b008bfb2c68b21742dc0a4bb67",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2022-05-30T12:21:57Z",
    "title_canon_sha256": "f25257a37e4a78be60e0aec628582d36af7fbafee6c4a7ecfd118b5c288834ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.15045",
    "kind": "arxiv",
    "version": 2
  }
}