Pith Number

pith:KSSR556W

pith:2018:KSSR556WRCQ62YM6FXEVRGTFZE

not attested not anchored not stored refs pending

Obstacle evasion in free-space optical communications utilizing Airy beams

Guoxuan Zhu, Jie Liu, Siyuan Yu, Xiong Wu, Yuanhui Wen, Yujie Chen

arxiv:1801.09772 v1 · 2018-01-26 · physics.app-ph · 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{KSSR556WRCQ62YM6FXEVRGTFZE}

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	2026-05-18T00:19:21.402339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54a51ef7d688a1ed619e2dc9589a65c924d664bf428e99ed5dc4b1582be73330

Aliases

arxiv: 1801.09772 · arxiv_version: 1801.09772v1 · doi: 10.48550/arxiv.1801.09772 · pith_short_12: KSSR556WRCQ6 · pith_short_16: KSSR556WRCQ62YM6 · pith_short_8: KSSR556W

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/KSSR556WRCQ62YM6FXEVRGTFZE \
  | 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: 54a51ef7d688a1ed619e2dc9589a65c924d664bf428e99ed5dc4b1582be73330

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12bffe69cbd9c23616f72d8a1b3028f86b476d10f7e6a8fd225d1f20db28956f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-01-26T03:11:51Z",
    "title_canon_sha256": "6e03f54ad169fbae092700a96de2b5b5883d13378e2f9b9d28b62fcd2e450b2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09772",
    "kind": "arxiv",
    "version": 1
  }
}