Pith Number

pith:NBU2E76B

pith:2012:NBU2E76BENUKZHSRFSIILVM6FS

not attested not anchored not stored refs pending

Sewing cells in almost cosymplectic and almost Kenmotsu geometry

Piotr Dacko

arxiv:1203.4778 v2 · 2012-03-21 · 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{NBU2E76BENUKZHSRFSIILVM6FS}

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	2026-05-18T03:59:01.117083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6869a27fc12368ac9e512c9085d59e2c87c3b5a5ca4da09c5dd17fa761c8ddc3

Aliases

arxiv: 1203.4778 · arxiv_version: 1203.4778v2 · doi: 10.48550/arxiv.1203.4778 · pith_short_12: NBU2E76BENUK · pith_short_16: NBU2E76BENUKZHSR · pith_short_8: NBU2E76B

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/NBU2E76BENUKZHSRFSIILVM6FS \
  | 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: 6869a27fc12368ac9e512c9085d59e2c87c3b5a5ca4da09c5dd17fa761c8ddc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "013af18c81ce2c4f249d27400861b1c6f0640acc3abd368e9fe5d2c03b4ddd8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-03-21T16:30:59Z",
    "title_canon_sha256": "ec5b23e04c23046c704a247c85177e3563268f64d2e0bd7cc1f45c13146aa7cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4778",
    "kind": "arxiv",
    "version": 2
  }
}