Pith Number

pith:F7DMUPES

pith:2008:F7DMUPESU2ATIM2CGMCULOLFXB

not attested not anchored not stored refs pending

A special class of holomorphic mappings and the Faddeev-Hopf model

Radu Slobodeanu

arxiv:0802.1626 v5 · 2008-02-12 · math.DG · math-ph · 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{F7DMUPESU2ATIM2CGMCULOLFXB}

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	2026-05-18T03:18:08.532352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fc6ca3c92a681343342330545b965b85d41f5e2901db14cccb6c953debc46bf

Aliases

arxiv: 0802.1626 · arxiv_version: 0802.1626v5 · doi: 10.48550/arxiv.0802.1626 · pith_short_12: F7DMUPESU2AT · pith_short_16: F7DMUPESU2ATIM2C · pith_short_8: F7DMUPES

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/F7DMUPESU2ATIM2CGMCULOLFXB \
  | 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: 2fc6ca3c92a681343342330545b965b85d41f5e2901db14cccb6c953debc46bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de839ebb1564104f9f2103eed83afa011358f9ed7c732f137e4159522c15b1ff",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-02-12T12:35:48Z",
    "title_canon_sha256": "b7b919809a41f0e8b10ce2f0c18f2e3de1cd4098aeae56d39b5872913443711c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1626",
    "kind": "arxiv",
    "version": 5
  }
}