Pith Number

pith:2B7PU5PD

pith:2013:2B7PU5PDH4PBTDD7AH5GTDNPDR

not attested not anchored not stored refs pending

Generation of Coherent Extreme-Ultraviolet Radiation Carrying Orbital Angular Momentum

David Gauthier, Giovanni De Ninno, Primo\v{z} Rebernik Ribi\v{c}

arxiv:1312.5837 v1 · 2013-12-20 · 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{2B7PU5PDH4PBTDD7AH5GTDNPDR}

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	2026-05-18T03:04:07.718363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d07efa75e33f1e198c7f01fa698daf1c6fa623f61f60d26cd7f0136296e02cfb

Aliases

arxiv: 1312.5837 · arxiv_version: 1312.5837v1 · doi: 10.48550/arxiv.1312.5837 · pith_short_12: 2B7PU5PDH4PB · pith_short_16: 2B7PU5PDH4PBTDD7 · pith_short_8: 2B7PU5PD

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/2B7PU5PDH4PBTDD7AH5GTDNPDR \
  | 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: d07efa75e33f1e198c7f01fa698daf1c6fa623f61f60d26cd7f0136296e02cfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0b464443066ab399010c03b4519049faa77e34225294caff287e0421106b794",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-12-20T07:55:39Z",
    "title_canon_sha256": "4a3117f6a8820da8485b9d58e1e91ac75a81c1b2c306b8ceb3dafe7b06ea352f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5837",
    "kind": "arxiv",
    "version": 1
  }
}