Pith Number

pith:TREP4R4H

pith:2001:TREP4R4HVMUM7QLJXDQJ5IDJ54

not attested not anchored not stored refs pending

On the B\"acklund Transformation for the Moyal Korteweg-de Vries Hierarchy

Ming-Hsien Tu

arxiv:nlin/0108037 v1 · 2001-08-19 · 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{TREP4R4HVMUM7QLJXDQJ5IDJ54}

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	2026-05-18T01:05:22.177285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c48fe4787ab28cfc169b8e09ea069ef0e9a5301526060e5e4eabd473dda3829

Aliases

arxiv: nlin/0108037 · arxiv_version: nlin/0108037v1 · doi: 10.48550/arxiv.nlin/0108037 · pith_short_12: TREP4R4HVMUM · pith_short_16: TREP4R4HVMUM7QLJ · pith_short_8: TREP4R4H

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/TREP4R4HVMUM7QLJXDQJ5IDJ54 \
  | 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: 9c48fe4787ab28cfc169b8e09ea069ef0e9a5301526060e5e4eabd473dda3829

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe01fad0634712c24841dc06fcbde5ee8e0af9e804cbf971c7ca0a90343e292",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2001-08-19T16:39:15Z",
    "title_canon_sha256": "a6c5d7123634ecff05626bcf65ee78e6e137c6a35eec9fe8200195aff610dc0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0108037",
    "kind": "arxiv",
    "version": 1
  }
}