Pith Number

pith:IUPOSE7E

pith:2011:IUPOSE7EQWRZG3NUUSOLFXGGB5

not attested not anchored not stored refs pending

Generation of high-order optical vortices using directly machined spiral phase mirrors

Ben Buchler, Boris Hage, Geoff Campbell, Ping Koy Lam

arxiv:1107.1009 v1 · 2011-07-06 · 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{IUPOSE7EQWRZG3NUUSOLFXGGB5}

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	2026-05-18T01:22:44.182043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

451ee913e485a3936db4a49cb2dcc60f72a89c330a645697fb122366ac2c5db8

Aliases

arxiv: 1107.1009 · arxiv_version: 1107.1009v1 · doi: 10.48550/arxiv.1107.1009 · pith_short_12: IUPOSE7EQWRZ · pith_short_16: IUPOSE7EQWRZG3NU · pith_short_8: IUPOSE7E

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/IUPOSE7EQWRZG3NUUSOLFXGGB5 \
  | 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: 451ee913e485a3936db4a49cb2dcc60f72a89c330a645697fb122366ac2c5db8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "891669eec76778cb8cf7240a1c32ad43b4cd5d05be3161695c7de6cabd7f86b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-07-06T00:50:29Z",
    "title_canon_sha256": "76ce91dca2942902fa5703f386929ba62b36da8181756fc66d05519cc6510e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1009",
    "kind": "arxiv",
    "version": 1
  }
}