Pith Number

pith:SPOQGZBG

pith:2026:SPOQGZBGJ7THBEN7KQZ6SF3KP3

not attested not anchored not stored refs pending

Optimal slit width for high-precision orbital angular momentum measurement using angular double-slit interferometry

Chen Liu, Jiyang Zhang, Manpeng Chang, Tao Chen, Weimin Wang, Xin Wang, Yu Jian

arxiv:2607.08549 v1 · 2026-07-09 · 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{SPOQGZBGJ7THBEN7KQZ6SF3KP3}

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	2026-07-10T01:19:53.356804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93dd0364264fe67091bf5433e9176a7efc3637f660562d68cf48dd9c3a19499f

Aliases

arxiv: 2607.08549 · arxiv_version: 2607.08549v1 · doi: 10.48550/arxiv.2607.08549 · pith_short_12: SPOQGZBGJ7TH · pith_short_16: SPOQGZBGJ7THBEN7 · pith_short_8: SPOQGZBG

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/SPOQGZBGJ7THBEN7KQZ6SF3KP3 \
  | 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: 93dd0364264fe67091bf5433e9176a7efc3637f660562d68cf48dd9c3a19499f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9713b166d362b545707808c4b8fc7484914bdd35a78823f4807a12dc408c2cf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-07-09T14:41:40Z",
    "title_canon_sha256": "42795b519759d117965567cc1ff5bcc5478cc0f0e39faceecf1463c5c1c2d377"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08549",
    "kind": "arxiv",
    "version": 1
  }
}