Pith Number

pith:MQIDCR3B

pith:2015:MQIDCR3BZRCAPBV7RNG4CXV6SB

not attested not anchored not stored refs pending

Continuously Shaping Orbital Angular Momentum with an Analog Optical Vortex Transmitter

A. Danner, Chengwei Qiu, Hong Liu, Jinghua Teng, Kun Huang, M. Q. Mehmood, S. Mei

arxiv:1504.01909 v1 · 2015-04-08 · 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{MQIDCR3BZRCAPBV7RNG4CXV6SB}

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	2026-05-18T02:19:17.832397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8

Aliases

arxiv: 1504.01909 · arxiv_version: 1504.01909v1 · doi: 10.48550/arxiv.1504.01909 · pith_short_12: MQIDCR3BZRCA · pith_short_16: MQIDCR3BZRCAPBV7 · pith_short_8: MQIDCR3B

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/MQIDCR3BZRCAPBV7RNG4CXV6SB \
  | 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: 6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9bd06d827ec32f58a48b9d6b297b66d190aabd20e9b54d0dffe63f60041ef8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-04-08T10:52:29Z",
    "title_canon_sha256": "ded202e7fea495ad4a14c4ca45db6c5fa053b05da577270f12341b2eeabc4a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01909",
    "kind": "arxiv",
    "version": 1
  }
}