Pith Number

pith:IWPWZHTK

pith:2014:IWPWZHTKXNZ3CU7AW6ZXGYHM27

not attested not anchored not stored refs pending

Cohomologies of generalized complex manifolds and nilmanifolds

Daniele Angella, Hisashi Kasuya, Simone Calamai

arxiv:1405.0981 v4 · 2014-05-05 · 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{IWPWZHTKXNZ3CU7AW6ZXGYHM27}

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	2026-05-18T00:28:27.673200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

459f6c9e6abb73b153e0b7b37360ecd7f9279b514edd48ded30be40d325ed802

Aliases

arxiv: 1405.0981 · arxiv_version: 1405.0981v4 · doi: 10.48550/arxiv.1405.0981 · pith_short_12: IWPWZHTKXNZ3 · pith_short_16: IWPWZHTKXNZ3CU7A · pith_short_8: IWPWZHTK

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/IWPWZHTKXNZ3CU7AW6ZXGYHM27 \
  | 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: 459f6c9e6abb73b153e0b7b37360ecd7f9279b514edd48ded30be40d325ed802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8e9712cca875d4e6de65e45f17f842f9d91fd68883bf9707c3715060dd19d8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-05-05T18:14:54Z",
    "title_canon_sha256": "2f6e1ef1c727e05c5a483bd04d6b7c7581a21411c70db6ebd9c50d37e06831df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0981",
    "kind": "arxiv",
    "version": 4
  }
}