Pith Number

pith:6TD4FHU3

pith:2014:6TD4FHU3IFKGXSZZR73HOZRVHA

not attested not anchored not stored refs pending

Real hypersurfaces in complex two-plane Grassmannians with Reeb parallel Ricci tensor in generalized Tanaka-Webster connection

Changhwa Woo, Hyunjin Lee, Young Jin Suh

arxiv:1410.2690 v1 · 2014-10-10 · 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{6TD4FHU3IFKGXSZZR73HOZRVHA}

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	2026-05-18T02:40:37.499366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4c7c29e9b41546bcb398ff67766353831c608429adcdedc125461febcaecb9d

Aliases

arxiv: 1410.2690 · arxiv_version: 1410.2690v1 · doi: 10.48550/arxiv.1410.2690 · pith_short_12: 6TD4FHU3IFKG · pith_short_16: 6TD4FHU3IFKGXSZZ · pith_short_8: 6TD4FHU3

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/6TD4FHU3IFKGXSZZR73HOZRVHA \
  | 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: f4c7c29e9b41546bcb398ff67766353831c608429adcdedc125461febcaecb9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "701ace62f0ca51b56ffaefaca5a9229657247b7066b73a25da12c139b3f38923",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-10-10T07:11:46Z",
    "title_canon_sha256": "0a9792a1af6b548af691a5d16f2e2642e39e65ab406364107cc42cdff1cd4375"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.2690",
    "kind": "arxiv",
    "version": 1
  }
}