Pith Number

pith:J5COI7KY

pith:2017:J5COI7KY6WG2DL3D4QWONOSZRL

not attested not anchored not stored refs pending

Structured Light by linking together diffraction-resistant spatially shaped beams: "LEGO-BEAMS"

Erasmo Recami, J.N.Pereira, Marcos R.R.Gesualdi, Michel Zamboni-Rached, Tarcio A.Vieira

arxiv:1712.01118 v2 · 2017-12-01 · physics.optics · physics.app-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{J5COI7KY6WG2DL3D4QWONOSZRL}

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	2026-05-18T00:05:32.368489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f44e47d58f58da1af63e42ce6ba598ac74c599381086f968ffb05cfe927017b

Aliases

arxiv: 1712.01118 · arxiv_version: 1712.01118v2 · doi: 10.48550/arxiv.1712.01118 · pith_short_12: J5COI7KY6WG2 · pith_short_16: J5COI7KY6WG2DL3D · pith_short_8: J5COI7KY

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/J5COI7KY6WG2DL3D4QWONOSZRL \
  | 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: 4f44e47d58f58da1af63e42ce6ba598ac74c599381086f968ffb05cfe927017b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef4c8bbc2ad8afd3f898251c03d6284cd6c7d80bc6b5a421192c8a306077812f",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-12-01T04:01:43Z",
    "title_canon_sha256": "f80fa19aaeedd0f827ab567313d3cb8483f83b413860cd9a5cdde4a3528cbc38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01118",
    "kind": "arxiv",
    "version": 2
  }
}