Pith Number

pith:FJMTKUGG

pith:2008:FJMTKUGGEOQWRMYEUNWLWL34NY

not attested not anchored not stored refs pending

Some four-dimensional almost hypercomplex pseudo-Hermitian manifolds

Kouei Sekigawa, Mancho Manev

arxiv:0804.2814 v2 · 2008-04-17 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJMTKUGGEOQWRMYEUNWLWL34NY}

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	2026-05-18T03:56:23.116444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a593550c623a168b304a36cbb2f7c6e2b4f533ca8438efecbeb972c26959a24

Aliases

arxiv: 0804.2814 · arxiv_version: 0804.2814v2 · doi: 10.48550/arxiv.0804.2814 · pith_short_12: FJMTKUGGEOQW · pith_short_16: FJMTKUGGEOQWRMYE · pith_short_8: FJMTKUGG

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/FJMTKUGGEOQWRMYEUNWLWL34NY \
  | 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: 2a593550c623a168b304a36cbb2f7c6e2b4f533ca8438efecbeb972c26959a24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a36126a3107ce4db6df373f3ef1dd65e4a7627b36e092e5dcb2f1cdf41608bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-04-17T13:55:06Z",
    "title_canon_sha256": "c58f3ec3b16f268d15468bef67b8d1451a33e98d2821068c44b3ea36b41787c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2814",
    "kind": "arxiv",
    "version": 2
  }
}