Pith Number

pith:AEKAYOEH

pith:1999:AEKAYOEHQIIGMTO5MPTDXBEZPY

not attested not anchored not stored refs pending

Exploring Surfaces through Methods from the Theory of Integrable Systems. lectures on the Bonnet problem

Alexander I. Bobenko

arxiv:math/9909003 v1 · 1999-09-01 · math.DG · math-ph · math.MP · nlin.SI · solv-int

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AEKAYOEHQIIGMTO5MPTDXBEZPY}

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	2026-05-18T00:36:44.122256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01140c38878210664ddd63e63b84997e2e520a3e21cf832c63fbef861b7da445

Aliases

arxiv: math/9909003 · arxiv_version: math/9909003v1 · doi: 10.48550/arxiv.math/9909003 · pith_short_12: AEKAYOEHQIIG · pith_short_16: AEKAYOEHQIIGMTO5 · pith_short_8: AEKAYOEH

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/AEKAYOEHQIIGMTO5MPTDXBEZPY \
  | 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: 01140c38878210664ddd63e63b84997e2e520a3e21cf832c63fbef861b7da445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abac39056189576385b5defd409581c405dc681ed51508a9d1934673924badfe",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI",
      "solv-int"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "1999-09-01T17:26:08Z",
    "title_canon_sha256": "944a37fbfbf8931da58e0e1ddae2baba0af3975a0b5b1f6e6b8a4758b4eb7374"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9909003",
    "kind": "arxiv",
    "version": 1
  }
}