Pith Number

pith:YVHB7E4R

pith:2019:YVHB7E4RALTKH7DR54JLXKUJ4G

not attested not anchored not stored refs pending

Wronskian solutions of integrable systems

Da-jun Zhang

arxiv:1903.09283 v1 · 2019-03-22 · 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{YVHB7E4RALTKH7DR54JLXKUJ4G}

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	2026-05-17T23:50:40.104274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c54e1f939102e6a3fc71ef12bbaa89e1bfbb56b60f03783e4d14874414ded199

Aliases

arxiv: 1903.09283 · arxiv_version: 1903.09283v1 · doi: 10.48550/arxiv.1903.09283 · pith_short_12: YVHB7E4RALTK · pith_short_16: YVHB7E4RALTKH7DR · pith_short_8: YVHB7E4R

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/YVHB7E4RALTKH7DR54JLXKUJ4G \
  | 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: c54e1f939102e6a3fc71ef12bbaa89e1bfbb56b60f03783e4d14874414ded199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e402a0a636099f945f28302fd05102958804f75b1a26d84bd492db5ad99c804f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2019-03-22T01:03:51Z",
    "title_canon_sha256": "afffb894536eeaf4b4991e16c22ea0075e4d15076837788c8ca191d3fcf5c9aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09283",
    "kind": "arxiv",
    "version": 1
  }
}