Pith Number

pith:WGOUUNMY

pith:2021:WGOUUNMYZDPSJEZKP4GYTCSTJU

not attested not anchored not stored refs pending

Physics-oriented learning of nonlinear Schr\"odinger equation: optical fiber loss and dispersion profile identification

Etsushi Yamazaki, Hideki Nishizawa, Masanori Nakamura, Shuto Yamamoto, Takeo Sasai, Yoshiaki Kisaka

arxiv:2104.05890 v1 · 2021-04-13 · eess.SP · 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{WGOUUNMYZDPSJEZKP4GYTCSTJU}

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	2026-07-05T02:31:26.355098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b19d4a3598c8df24932a7f0d898a534d25498c6b59e9451729ba7b3984293068

Aliases

arxiv: 2104.05890 · arxiv_version: 2104.05890v1 · doi: 10.48550/arxiv.2104.05890 · pith_short_12: WGOUUNMYZDPS · pith_short_16: WGOUUNMYZDPSJEZK · pith_short_8: WGOUUNMY

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/WGOUUNMYZDPSJEZKP4GYTCSTJU \
  | 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: b19d4a3598c8df24932a7f0d898a534d25498c6b59e9451729ba7b3984293068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9fb062add8939196964826d8790fec61d74e11cd8fece5ed3ede1f685415991",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-04-13T01:45:43Z",
    "title_canon_sha256": "52b473ba5dc08283ee8afd083fd7e60a93c75e4221e3e2223c0d14827b852a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05890",
    "kind": "arxiv",
    "version": 1
  }
}