Pith Number

pith:APZXPYJB

pith:2015:APZXPYJBQY6H5Y4ZUYKNB7DYR2

not attested not anchored not stored refs pending

On a discretization of confocal quadrics. I. An integrable systems approach

Alexander I. Bobenko, Jan Techter, Wolfgang K. Schief, Yuri B. Suris

arxiv:1511.01777 v2 · 2015-11-05 · math.DG · 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{APZXPYJBQY6H5Y4ZUYKNB7DYR2}

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	2026-05-18T00:36:48.072616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03f377e121863c7ee399a614d0fc788eb517ae1aaed8677e22f6e83ace9a6dbc

Aliases

arxiv: 1511.01777 · arxiv_version: 1511.01777v2 · doi: 10.48550/arxiv.1511.01777 · pith_short_12: APZXPYJBQY6H · pith_short_16: APZXPYJBQY6H5Y4Z · pith_short_8: APZXPYJB

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/APZXPYJBQY6H5Y4ZUYKNB7DYR2 \
  | 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: 03f377e121863c7ee399a614d0fc788eb517ae1aaed8677e22f6e83ace9a6dbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "845e0915b438e3b21b4c0b4e68c146c4ee496c1d23077e15aaf9126bb5b738ae",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-11-05T15:19:56Z",
    "title_canon_sha256": "0a6db0e1f14ddf6afeb72e7ff7b8e7aa4e0dfcf9989783549193423a1b8a8ecf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01777",
    "kind": "arxiv",
    "version": 2
  }
}