Pith Number

pith:6B6IAMJB

pith:2018:6B6IAMJB4BTEKOOVQUPWG23OX3

not attested not anchored not stored refs pending

Discrete Crum's Theorems and Integrable Lattice Equations

Cheng Zhang, Da-jun Zhang, Linyu Peng

arxiv:1802.10044 v2 · 2018-02-27 · nlin.SI · math-ph · math.MP · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6B6IAMJB4BTEKOOVQUPWG23OX3}

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	2026-05-18T00:21:34.075041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f07c803121e0664539d5851f636b6ebee82dddac7f8cda2e4c0c0da1c63fcc00

Aliases

arxiv: 1802.10044 · arxiv_version: 1802.10044v2 · doi: 10.48550/arxiv.1802.10044 · pith_short_12: 6B6IAMJB4BTE · pith_short_16: 6B6IAMJB4BTEKOOV · pith_short_8: 6B6IAMJB

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/6B6IAMJB4BTEKOOVQUPWG23OX3 \
  | 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: f07c803121e0664539d5851f636b6ebee82dddac7f8cda2e4c0c0da1c63fcc00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f32dd2441cde0edb947d2a08ab19d8e11514ecfa9f13401ae0b695ec587c12cc",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2018-02-27T17:49:10Z",
    "title_canon_sha256": "9ff476ca5ac6c04d5c92d5329da603d603c285155a18ee3a81086c86e571f8df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.10044",
    "kind": "arxiv",
    "version": 2
  }
}