Pith Number

pith:TMERHRJJ

pith:2020:TMERHRJJPV6ISLWLT5TGXOA7M7

not attested not anchored not stored refs pending

On degenerations of $\mathbb Z/2$-Godeaux surfaces

Carlos Rito, Eduardo Dias, Giancarlo Urz\'ua

arxiv:2002.08836 v1 · 2020-02-20 · math.AG

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TMERHRJJPV6ISLWLT5TGXOA7M7}

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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.

Cited by

1 paper in Pith

$\mathbb Z/2$-Godeaux surfaces

Receipt and verification

First computed	2026-07-05T00:42:39.122352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b0913c5297d7c892ecb9f666bb81f67c0aa502539b52d5a9d7e8bc8e57e930b

Aliases

arxiv: 2002.08836 · arxiv_version: 2002.08836v1 · doi: 10.48550/arxiv.2002.08836 · pith_short_12: TMERHRJJPV6I · pith_short_16: TMERHRJJPV6ISLWL · pith_short_8: TMERHRJJ

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/TMERHRJJPV6ISLWLT5TGXOA7M7 \
  | 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: 9b0913c5297d7c892ecb9f666bb81f67c0aa502539b52d5a9d7e8bc8e57e930b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a8749045596428a2ccd8951ef00d221656172776914c45713c57688e70639f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2020-02-20T16:20:55Z",
    "title_canon_sha256": "78225aa868730fcd1beccf0274775458a61f48ac11e84a759a2b22bfed69edfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08836",
    "kind": "arxiv",
    "version": 1
  }
}