Pith Number

pith:MGZI5GQM

pith:2017:MGZI5GQMUHIGENMXWFP5QD2DQV

not attested not anchored not stored refs pending

Four-dimensional Conformally Flat Berwald and Landsberg Spaces

Gauree Shanker

arxiv:1712.07556 v1 · 2017-12-20 · 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{MGZI5GQMUHIGENMXWFP5QD2DQV}

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	2026-05-18T00:27:34.240466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61b28e9a0ca1d0623597b15fd80f438571d7294deded4111e63afcecbf4d9ce3

Aliases

arxiv: 1712.07556 · arxiv_version: 1712.07556v1 · doi: 10.48550/arxiv.1712.07556 · pith_short_12: MGZI5GQMUHIG · pith_short_16: MGZI5GQMUHIGENMX · pith_short_8: MGZI5GQM

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/MGZI5GQMUHIGENMXWFP5QD2DQV \
  | 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: 61b28e9a0ca1d0623597b15fd80f438571d7294deded4111e63afcecbf4d9ce3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf14814a4212ea08a3859fc4209a33db33a0897f9a0fae3ccbf61a853ec76e8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-12-20T16:22:56Z",
    "title_canon_sha256": "01edf3aaf948d42783519ed426ed2faa27a005c1ec5272216a9d39515d908057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07556",
    "kind": "arxiv",
    "version": 1
  }
}