Pith Number

pith:3UAHOQWY

pith:2017:3UAHOQWYGZ7ITRXDQHG5PR4BOP

not attested not anchored not stored refs pending

Enriques surfaces with normal K3-like coverings

Stefan Schr\"oer

arxiv:1703.03081 v2 · 2017-03-09 · 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{3UAHOQWYGZ7ITRXDQHG5PR4BOP}

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	2026-05-17T23:45:58.305382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd007742d8367e89c6e381cdd7c78173db34606b0a1a34e46df4e13c63997e37

Aliases

arxiv: 1703.03081 · arxiv_version: 1703.03081v2 · doi: 10.48550/arxiv.1703.03081 · pith_short_12: 3UAHOQWYGZ7I · pith_short_16: 3UAHOQWYGZ7ITRXD · pith_short_8: 3UAHOQWY

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/3UAHOQWYGZ7ITRXDQHG5PR4BOP \
  | 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: dd007742d8367e89c6e381cdd7c78173db34606b0a1a34e46df4e13c63997e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eb1bbbf8a2104688f8a812a6c1376a1d459e11230f7340ca97b6cc5e22fb6f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-09T00:11:16Z",
    "title_canon_sha256": "0e7df808ef096a4bb1d4b4783735547240c40dc5b4394bf81619e89d64c885d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03081",
    "kind": "arxiv",
    "version": 2
  }
}