Pith Number

pith:ZCPXCN75

pith:2017:ZCPXCN75SJY3Z6D7WXQINUXFN3

not attested not anchored not stored refs pending

Linear integral equations, infinite matrices, and soliton hierarchies

Frank W. Nijhoff, Wei Fu

arxiv:1703.08137 v3 · 2017-03-23 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCPXCN75SJY3Z6D7WXQINUXFN3}

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	2026-05-18T00:10:19.488618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c89f7137fd9271bcf87fb5e086d2e56efcdfdca9f31af1e8204c0f188feabca8

Aliases

arxiv: 1703.08137 · arxiv_version: 1703.08137v3 · doi: 10.48550/arxiv.1703.08137 · pith_short_12: ZCPXCN75SJY3 · pith_short_16: ZCPXCN75SJY3Z6D7 · pith_short_8: ZCPXCN75

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/ZCPXCN75SJY3Z6D7WXQINUXFN3 \
  | 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: c89f7137fd9271bcf87fb5e086d2e56efcdfdca9f31af1e8204c0f188feabca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "002cbb3abd63b8f29f0fb179df26eb772c37c0a355babd1fcfe596010d695308",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2017-03-23T16:49:16Z",
    "title_canon_sha256": "40989beafe5043a15420f2ab5d5899bc338e9aa01aa97523b964fabbcc2cb615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08137",
    "kind": "arxiv",
    "version": 3
  }
}