Pith Number

pith:QSBLE4SR

pith:2018:QSBLE4SRZWWDHPFOAHGFN6N3RU

not attested not anchored not stored refs pending

The direct problem for the perturbed Kadomtsev-Petviashvili II one line solitons

Derchyi Wu

arxiv:1807.01420 v1 · 2018-07-04 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSBLE4SRZWWDHPFOAHGFN6N3RU}

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	2026-05-18T00:11:29.712846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8482b27251cdac33bcae01cc56f9bb8d03028d06e0905dfe5da521f89a8f67fe

Aliases

arxiv: 1807.01420 · arxiv_version: 1807.01420v1 · doi: 10.48550/arxiv.1807.01420 · pith_short_12: QSBLE4SRZWWD · pith_short_16: QSBLE4SRZWWDHPFO · pith_short_8: QSBLE4SR

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/QSBLE4SRZWWDHPFOAHGFN6N3RU \
  | 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: 8482b27251cdac33bcae01cc56f9bb8d03028d06e0905dfe5da521f89a8f67fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ea7bd106a0fd647d11396a303823e2aea99d5ceac82b871d153a61aa01d9cff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2018-07-04T01:33:23Z",
    "title_canon_sha256": "17dfdc13349ef8698fd13ac66c384edb501655ecd90e0da3348cb8f3af29a8d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01420",
    "kind": "arxiv",
    "version": 1
  }
}