Pith Number

pith:G2WR4YAO

pith:2015:G2WR4YAOESFIF6QU7LLCJWB26Q

not attested not anchored not stored refs pending

The Geometry and Moduli of K3 Surfaces

Alan Thompson, Andrew Harder

arxiv:1501.04049 v2 · 2015-01-16 · 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{G2WR4YAOESFIF6QU7LLCJWB26Q}

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	2026-05-18T01:32:52.561252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36ad1e600e248a82fa14fad624d83af40c3cd56a972e3ac11122f247dff6e74b

Aliases

arxiv: 1501.04049 · arxiv_version: 1501.04049v2 · doi: 10.48550/arxiv.1501.04049 · pith_short_12: G2WR4YAOESFI · pith_short_16: G2WR4YAOESFIF6QU · pith_short_8: G2WR4YAO

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/G2WR4YAOESFIF6QU7LLCJWB26Q \
  | 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: 36ad1e600e248a82fa14fad624d83af40c3cd56a972e3ac11122f247dff6e74b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b9a7757b5f2a3711d41c9c9370bc115da273a08660cb25a30dda82e4582a5c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-16T17:00:12Z",
    "title_canon_sha256": "0c83e9fb6d7c68b3beb8245cea4dd57e94adcf8124de61d26f5db63a0b03c2ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04049",
    "kind": "arxiv",
    "version": 2
  }
}