Pith Number

pith:7CXKCQN5

pith:2026:7CXKCQN5AKFN5YEVYRREXN7MKP

not attested not anchored not stored refs pending

Dark solitons in the fractional NLS equation

Almudena P. M\'arquez, Jes\'us Cuevas-Maraver, Panayotis G. Kevrekidis

arxiv:2605.21271 v1 · 2026-05-20 · nlin.PS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CXKCQN5AKFN5YEVYRREXN7MKP}

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	2026-05-21T02:05:26.016056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8aea141bd028adee095c4624bb7ec53cbac95e983d1208959ab5e43dd2c889c

Aliases

arxiv: 2605.21271 · arxiv_version: 2605.21271v1 · doi: 10.48550/arxiv.2605.21271 · pith_short_12: 7CXKCQN5AKFN · pith_short_16: 7CXKCQN5AKFN5YEV · pith_short_8: 7CXKCQN5

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/7CXKCQN5AKFN5YEVYRREXN7MKP \
  | 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: f8aea141bd028adee095c4624bb7ec53cbac95e983d1208959ab5e43dd2c889c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b09730593db1cc9df6ccc03823387dac939edaa966a3d32e091fdd037621da15",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2026-05-20T14:59:10Z",
    "title_canon_sha256": "b3fe95ed5bfd5ee2fd8dfe709cf859992a517bc2fb70b303406ac7c9bf8340a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21271",
    "kind": "arxiv",
    "version": 1
  }
}