Pith Number

pith:Z2UU6DXM

pith:2010:Z2UU6DXM2W3XSY2Z3E7A74PAHM

not attested not anchored not stored refs pending

The orbifold cohomology of moduli of hyperelliptic curves

Nicola Pagani

arxiv:1011.4946 v4 · 2010-11-22 · math.AG · math.AT

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

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	2026-05-18T03:04:15.730924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cea94f0eecd5b7796359d93e0ff1e03b1c446da90a369e851eadd5fc29f32808

Aliases

arxiv: 1011.4946 · arxiv_version: 1011.4946v4 · doi: 10.48550/arxiv.1011.4946 · pith_short_12: Z2UU6DXM2W3X · pith_short_16: Z2UU6DXM2W3XSY2Z · pith_short_8: Z2UU6DXM

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/Z2UU6DXM2W3XSY2Z3E7A74PAHM \
  | 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: cea94f0eecd5b7796359d93e0ff1e03b1c446da90a369e851eadd5fc29f32808

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7be32d05f6982717478e64843351a317a2ebc5b54c126ee8d980a4604be1c754",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-11-22T21:00:07Z",
    "title_canon_sha256": "c88172be82b5261a3b656face9c817446cf3572fb66ea2335d0c5ee6a438dcfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4946",
    "kind": "arxiv",
    "version": 4
  }
}