Pith Number

pith:BQNR2X64

pith:2025:BQNR2X64QWS6NCFUE6NGTNSG36

not attested not anchored not stored refs pending

Focused axisymmetric spatially chirped beams

Christopher P. J. Barty, Eric C. Nelson, Haytham H. Effarah, Kyle D. Chesnut, Kyle J. Charbonnet, Trevor Reutershan

arxiv:2505.24817 v1 · 2025-05-30 · 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{BQNR2X64QWS6NCFUE6NGTNSG36}

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	2026-07-05T11:12:57.302693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1b1d5fdc85a5e688b4279a69b646df95dfed92483bf16144a5f6b758718d2d

Aliases

arxiv: 2505.24817 · arxiv_version: 2505.24817v1 · doi: 10.48550/arxiv.2505.24817 · pith_short_12: BQNR2X64QWS6 · pith_short_16: BQNR2X64QWS6NCFU · pith_short_8: BQNR2X64

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/BQNR2X64QWS6NCFUE6NGTNSG36 \
  | 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: 0c1b1d5fdc85a5e688b4279a69b646df95dfed92483bf16144a5f6b758718d2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "512409f380c064ecc99283bb13ae901dfe62661d33ebd861f0f28bdd23a18ace",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-05-30T17:21:29Z",
    "title_canon_sha256": "243a88283d1475761fb4db7b52df97757262b18af676828b42b85e4517fa525d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24817",
    "kind": "arxiv",
    "version": 1
  }
}