Pith Number

pith:2C25QQIW

pith:2017:2C25QQIW7ELPLCH3JB7YPIGKY3

not attested not anchored not stored refs pending

Nondestructive Measurement of Orbital Angular Momentum for an Electron Beam

Alicia Sit, Ebrahim Karimi, Fr\'ed\'eric Bouchard, Hugo Larocque, Miles J. Padgett, Rafal E. Dunin-Borkowski, Robert W. Boyd, Stefano Frabboni, Vincenzo Grillo

arxiv:1701.03199 v1 · 2017-01-12 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2C25QQIW7ELPLCH3JB7YPIGKY3}

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	2026-05-18T00:52:58.230675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0b5d84116f916f588fb487f87a0cac6ed3c321ae151cd1669ff91f6ecd42f32

Aliases

arxiv: 1701.03199 · arxiv_version: 1701.03199v1 · doi: 10.48550/arxiv.1701.03199 · pith_short_12: 2C25QQIW7ELP · pith_short_16: 2C25QQIW7ELPLCH3 · pith_short_8: 2C25QQIW

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/2C25QQIW7ELPLCH3JB7YPIGKY3 \
  | 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: d0b5d84116f916f588fb487f87a0cac6ed3c321ae151cd1669ff91f6ecd42f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "388115da371819f80476f53d011c058e19d061036cc65254f6e2472155667029",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-12T01:06:48Z",
    "title_canon_sha256": "0b34cb4122f91ba07cbfac0873116ee164642eb8949209aa8c32c420e1607a8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03199",
    "kind": "arxiv",
    "version": 1
  }
}