Pith Number

pith:DH6KHBAL

pith:2010:DH6KHBALLQRPW3RM72XUJGLISR

not attested not anchored not stored refs pending

The Ricci flow for simply connected nilmanifolds

Jorge Lauret

arxiv:1004.0946 v2 · 2010-04-06 · 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{DH6KHBALLQRPW3RM72XUJGLISR}

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	2026-05-18T04:10:48.387003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19fca3840b5c22fb6e2cfeaf4499689477cdda4645fc6de55976449ea40e1eea

Aliases

arxiv: 1004.0946 · arxiv_version: 1004.0946v2 · doi: 10.48550/arxiv.1004.0946 · pith_short_12: DH6KHBALLQRP · pith_short_16: DH6KHBALLQRPW3RM · pith_short_8: DH6KHBAL

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/DH6KHBALLQRPW3RM72XUJGLISR \
  | 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: 19fca3840b5c22fb6e2cfeaf4499689477cdda4645fc6de55976449ea40e1eea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc3fd819d5acf05ac41e77563d362bca7fbe7c562ae70c8727260fa00d140848",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-04-06T19:57:40Z",
    "title_canon_sha256": "b60c99b45dbde75366f80dd2d600026d61ac07d037dc18eafaa499de590ab84e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0946",
    "kind": "arxiv",
    "version": 2
  }
}