Pith Number

pith:JXJQRW7U

pith:2014:JXJQRW7UUPQ442SSCHVERX3OAO

not attested not anchored not stored refs pending

Rigidity of manifolds with boundary under a lower Ricci curvature bound

Yohei Sakurai

arxiv:1404.3845 v5 · 2014-04-15 · 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{JXJQRW7UUPQ442SSCHVERX3OAO}

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	2026-05-18T01:23:49.168051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dd308dbf4a3e1ce6a5211ea48df6e03bfea79ca34d42e600dec46e3162b3eee

Aliases

arxiv: 1404.3845 · arxiv_version: 1404.3845v5 · doi: 10.48550/arxiv.1404.3845 · pith_short_12: JXJQRW7UUPQ4 · pith_short_16: JXJQRW7UUPQ442SS · pith_short_8: JXJQRW7U

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/JXJQRW7UUPQ442SSCHVERX3OAO \
  | 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: 4dd308dbf4a3e1ce6a5211ea48df6e03bfea79ca34d42e600dec46e3162b3eee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fb0194be5575ec855f940fd5c6215d7bd4f399b18b5ec77bd9b0f5390c68360",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-04-15T08:26:29Z",
    "title_canon_sha256": "7ee86b548fc9255de23edd4e7b511267e6dc171f6708bc4413ceac576cad719e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3845",
    "kind": "arxiv",
    "version": 5
  }
}