Pith Number

pith:7EZNFYFQ

pith:1999:7EZNFYFQE27E5A6WSHO25VD6N2

not attested not anchored not stored refs pending

Canonicity of Baecklund transformation: r-matrix approach. II

E. K. Sklyanin

arxiv:solv-int/9903017 v1 · 1999-03-25 · solv-int · 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{7EZNFYFQE27E5A6WSHO25VD6N2}

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	2026-05-18T01:27:16.217865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f932d2e0b026be4e83d691ddaed47e6eb9f02b1b1b2c2ce7d1182864e9028686

Aliases

arxiv: solv-int/9903017 · arxiv_version: solv-int/9903017v1 · doi: 10.48550/arxiv.solv-int/9903017 · pith_short_12: 7EZNFYFQE27E · pith_short_16: 7EZNFYFQE27E5A6W · pith_short_8: 7EZNFYFQ

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/7EZNFYFQE27E5A6WSHO25VD6N2 \
  | 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: f932d2e0b026be4e83d691ddaed47e6eb9f02b1b1b2c2ce7d1182864e9028686

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffea5b70d0850978ddbbc24b7dc7a471b146a18bfb20e39cea525557cbb58ef9",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "solv-int",
    "submitted_at": "1999-03-25T15:03:27Z",
    "title_canon_sha256": "b4d0b082a260b8d4e41c4e6c859cd9c810c3d1d955c5636ef84aa2a72ad859e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "solv-int/9903017",
    "kind": "arxiv",
    "version": 1
  }
}