Pith Number

pith:BUKC5YRJ

pith:2012:BUKC5YRJIZNUFASB7JSGJHLUPU

not attested not anchored not stored refs pending

Invertible Darboux Transformations

Ekaterina Shemyakova

arxiv:1210.0803 v2 · 2012-10-02 · math-ph · math.DG · 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{BUKC5YRJIZNUFASB7JSGJHLUPU}

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	2026-05-18T03:37:18.779083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d142ee229465b428241fa64649d747d3c92cc9f3bc2fd2f74e7c1bf684aa1d7

Aliases

arxiv: 1210.0803 · arxiv_version: 1210.0803v2 · doi: 10.48550/arxiv.1210.0803 · pith_short_12: BUKC5YRJIZNU · pith_short_16: BUKC5YRJIZNUFASB · pith_short_8: BUKC5YRJ

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/BUKC5YRJIZNUFASB7JSGJHLUPU \
  | 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: 0d142ee229465b428241fa64649d747d3c92cc9f3bc2fd2f74e7c1bf684aa1d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5c735901ee12bcbabfff2cd95d58daae9b057cc09757f43140b493cab202264",
    "cross_cats_sorted": [
      "math.DG",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-10-02T15:21:56Z",
    "title_canon_sha256": "e5cef05c24f580f153a8efa641132d3be0c60e63bc22ee12297ae0cd1cbc7ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0803",
    "kind": "arxiv",
    "version": 2
  }
}