Pith Number

pith:5MQABFCJ

pith:2017:5MQABFCJVPGRHIP72RUNYYMP6H

not attested not anchored not stored refs pending

Producing an Efficient, Collimated and Thin Annular Beam with a Binary Axicon

Gadi Afek, Nir Davidson, Oz Livneh

arxiv:1708.02827 v2 · 2017-08-09 · 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{5MQABFCJVPGRHIP72RUNYYMP6H}

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	2026-05-18T00:15:21.448632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb20009449abcd13a1ffd468dc618ff1cef705108003d2384a041414f2527529

Aliases

arxiv: 1708.02827 · arxiv_version: 1708.02827v2 · doi: 10.48550/arxiv.1708.02827 · pith_short_12: 5MQABFCJVPGR · pith_short_16: 5MQABFCJVPGRHIP7 · pith_short_8: 5MQABFCJ

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/5MQABFCJVPGRHIP72RUNYYMP6H \
  | 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: eb20009449abcd13a1ffd468dc618ff1cef705108003d2384a041414f2527529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92bf997767076be99350a655f84ec5b85d2237294126444aff1ad323c1c2456b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-08-09T13:29:31Z",
    "title_canon_sha256": "e9e6fbb74f9d9dad3b0e98aaf8b03647b7ab057c005b77eef5aa2d3a93ba983c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02827",
    "kind": "arxiv",
    "version": 2
  }
}