Pith Number

pith:KHHVB3AT

pith:2012:KHHVB3ATSUMHC3Y4I4SWPYVHLO

not attested not anchored not stored refs pending

The rationality of the moduli spaces of Coble surfaces and of nodal Enriques surfaces

Igor Dolgachev, Shigeyuki Kondo

arxiv:1201.6093 v1 · 2012-01-30 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KHHVB3ATSUMHC3Y4I4SWPYVHLO}

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	2026-05-18T01:58:38.426969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51cf50ec139518716f1c472567e2a75ba8a94953f16498a19ebcb2d5c6c89c64

Aliases

arxiv: 1201.6093 · arxiv_version: 1201.6093v1 · doi: 10.48550/arxiv.1201.6093 · pith_short_12: KHHVB3ATSUMH · pith_short_16: KHHVB3ATSUMHC3Y4 · pith_short_8: KHHVB3AT

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/KHHVB3ATSUMHC3Y4I4SWPYVHLO \
  | 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: 51cf50ec139518716f1c472567e2a75ba8a94953f16498a19ebcb2d5c6c89c64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2227b773a365fd3afed70a3e4ba9febbcbc0fd7f3143218591c62ceba236b422",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-01-30T00:47:12Z",
    "title_canon_sha256": "fd8685a9b4a77ce5bda5a91200040fff1d70322748e799941bd3e3cffcebc932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6093",
    "kind": "arxiv",
    "version": 1
  }
}