Pith Number

pith:J34RCHSO

pith:2012:J34RCHSOOO3CK6ODSMSJMM3ZKP

not attested not anchored not stored refs pending

The Ricci flow in a class of solvmanifolds

Romina M. Arroyo

arxiv:1211.3605 v1 · 2012-11-15 · 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{J34RCHSOOO3CK6ODSMSJMM3ZKP}

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	2026-05-18T03:40:39.317938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ef9111e4e73b62579c3932496337953eda357f25f7b39f78df0ad383b87d6ca

Aliases

arxiv: 1211.3605 · arxiv_version: 1211.3605v1 · doi: 10.48550/arxiv.1211.3605 · pith_short_12: J34RCHSOOO3C · pith_short_16: J34RCHSOOO3CK6OD · pith_short_8: J34RCHSO

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/J34RCHSOOO3CK6ODSMSJMM3ZKP \
  | 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: 4ef9111e4e73b62579c3932496337953eda357f25f7b39f78df0ad383b87d6ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "590394644300c4b40d67340c95bc7370471c6d66b79ab276623568fdf78617a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-11-15T13:51:41Z",
    "title_canon_sha256": "5945f83ed06394cec7a962565124144f73a5f419ab94bb8046b413fdd20b8fef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3605",
    "kind": "arxiv",
    "version": 1
  }
}