Pith Number

pith:TPDH3KQX

pith:2016:TPDH3KQXD2GVRPP3H47R6HBN6D

not attested not anchored not stored refs pending

$H$-contact unit tangent sphere bundles of Riemannian manifolds

Jeong Hyeong Park, Yuri Nikolayevsky

arxiv:1607.03744 v1 · 2016-07-13 · 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{TPDH3KQXD2GVRPP3H47R6HBN6D}

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	2026-05-18T01:11:05.811878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bc67daa171e8d58bdfb3f3f1f1c2df0df80354105ad8a1ee354ea55c2908ed3

Aliases

arxiv: 1607.03744 · arxiv_version: 1607.03744v1 · doi: 10.48550/arxiv.1607.03744 · pith_short_12: TPDH3KQXD2GV · pith_short_16: TPDH3KQXD2GVRPP3 · pith_short_8: TPDH3KQX

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/TPDH3KQXD2GVRPP3H47R6HBN6D \
  | 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: 9bc67daa171e8d58bdfb3f3f1f1c2df0df80354105ad8a1ee354ea55c2908ed3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c66ef86a309b3f1088f3139dbc29886b834a3811010a392dc6b9056a7f99c844",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-07-13T14:07:57Z",
    "title_canon_sha256": "05fa5201495f0176cbae6555a17f1ec95368e4f21f4b4822e54cb9e6978433a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03744",
    "kind": "arxiv",
    "version": 1
  }
}