Pith Number

pith:CSOZNGBR

pith:2009:CSOZNGBRKP4JO3PD6H3CH53DLT

not attested not anchored not stored refs pending

The quaternionic KP hierarchy and conformally immersed 2-tori in the 4-sphere

Ian McIntosh

arxiv:0902.3598 v3 · 2009-02-20 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CSOZNGBRKP4JO3PD6H3CH53DLT}

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	2026-05-18T02:42:54.557691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

149d96983153f8976de3f1f623f7635cde3baf6f4f2ba057b71932f35e107974

Aliases

arxiv: 0902.3598 · arxiv_version: 0902.3598v3 · doi: 10.48550/arxiv.0902.3598 · pith_short_12: CSOZNGBRKP4J · pith_short_16: CSOZNGBRKP4JO3PD · pith_short_8: CSOZNGBR

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/CSOZNGBRKP4JO3PD6H3CH53DLT \
  | 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: 149d96983153f8976de3f1f623f7635cde3baf6f4f2ba057b71932f35e107974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c783cf1a60768198f330daa3c00be7cc21de5f0290d7edfcb6686a657b97f7aa",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-02-20T15:11:37Z",
    "title_canon_sha256": "db12abd0e687a7cf5150bc75fd691250a5327c6524d0d3b97f1a2e9cf0e62274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3598",
    "kind": "arxiv",
    "version": 3
  }
}