Pith Number

pith:GRSF52ZD

pith:2012:GRSF52ZD5MWLGAOHGD5NRR7H2J

not attested not anchored not stored refs pending

On the curvature of Einstein-Hermitian surfaces

Caner Koca, Mustafa Kalafat

arxiv:1206.3941 v6 · 2012-06-18 · math.DG · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GRSF52ZD5MWLGAOHGD5NRR7H2J}

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	2026-05-17T23:48:57.574048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34645eeb23eb2cb301c730fad8c7e7d2668c9baf3707d1f1eb51ea4acef7820a

Aliases

arxiv: 1206.3941 · arxiv_version: 1206.3941v6 · doi: 10.48550/arxiv.1206.3941 · pith_short_12: GRSF52ZD5MWL · pith_short_16: GRSF52ZD5MWLGAOH · pith_short_8: GRSF52ZD

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/GRSF52ZD5MWLGAOHGD5NRR7H2J \
  | 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: 34645eeb23eb2cb301c730fad8c7e7d2668c9baf3707d1f1eb51ea4acef7820a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65c49687c578310bd608e00aa1d8f4506759f0d12fa21cecf393359d6fe358c7",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-06-18T13:59:45Z",
    "title_canon_sha256": "91e72a18b56c134176ecc05bfdf0a41d9af14b7fcdad3b3e1f1d7ab2ff304819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3941",
    "kind": "arxiv",
    "version": 6
  }
}