Pith Number

pith:R64VXKGX

pith:2017:R64VXKGX37HMJRJ4I2NGHFNVM5

not attested not anchored not stored refs pending

The Rigidity of Ricci shrinkers of dimension four

Bing Wang, Yu Li

arxiv:1701.01989 v2 · 2017-01-08 · 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{R64VXKGX37HMJRJ4I2NGHFNVM5}

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	2026-05-18T00:50:28.736748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fb95ba8d7dfcec4c53c469a6395b5674a9a01bb2003d42d50fcca24f9f9c83e

Aliases

arxiv: 1701.01989 · arxiv_version: 1701.01989v2 · doi: 10.48550/arxiv.1701.01989 · pith_short_12: R64VXKGX37HM · pith_short_16: R64VXKGX37HMJRJ4 · pith_short_8: R64VXKGX

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/R64VXKGX37HMJRJ4I2NGHFNVM5 \
  | 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: 8fb95ba8d7dfcec4c53c469a6395b5674a9a01bb2003d42d50fcca24f9f9c83e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f9fb49ee903c85d2688534a46b0250d32cd275687be75363eac22d3c929909",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-01-08T17:25:03Z",
    "title_canon_sha256": "049828cfad5112d82a9bd4c93365d2c1abf4c8ae4a7f4928e3710c30042d6e7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01989",
    "kind": "arxiv",
    "version": 2
  }
}