Pith Number

pith:IOU3JNBR

pith:2015:IOU3JNBRARGFV4322E4S7LUVO4

not attested not anchored not stored refs pending

Some Ricci-Flat $(\alpha,\beta)$-Metrics

Esra Sengelen Sevim, Semail Ulgen

arxiv:1505.04181 v1 · 2015-04-13 · 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{IOU3JNBRARGFV4322E4S7LUVO4}

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	2026-05-18T02:09:39.814164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43a9b4b431044c5af37ad1392fae95773c0399959d3aa85ebbb913b89f42078f

Aliases

arxiv: 1505.04181 · arxiv_version: 1505.04181v1 · doi: 10.48550/arxiv.1505.04181 · pith_short_12: IOU3JNBRARGF · pith_short_16: IOU3JNBRARGFV432 · pith_short_8: IOU3JNBR

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/IOU3JNBRARGFV4322E4S7LUVO4 \
  | 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: 43a9b4b431044c5af37ad1392fae95773c0399959d3aa85ebbb913b89f42078f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17c0cf7473ed2a788d6d77d57567de772bdf969c41c9c00f4278d006fa81102b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-04-13T12:52:24Z",
    "title_canon_sha256": "fd28d2f292ac8baf4cd9f43edf27cfaa7aa3f477fbc7889a5bdae4108fef3f23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04181",
    "kind": "arxiv",
    "version": 1
  }
}