Pith Number

pith:7M7ZDAHV

pith:2016:7M7ZDAHV56HK3MCV3U6Y7EOQ3H

not attested not anchored not stored refs pending

The field of moduli of singular K3 surfaces

Roberto Laface

arxiv:1601.05579 v2 · 2016-01-21 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7M7ZDAHV56HK3MCV3U6Y7EOQ3H}

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	2026-05-18T00:30:09.405906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb3f9180f5ef8eadb055dd3d8f91d0d9ca8fb208e28f4d26caa14962d5797178

Aliases

arxiv: 1601.05579 · arxiv_version: 1601.05579v2 · doi: 10.48550/arxiv.1601.05579 · pith_short_12: 7M7ZDAHV56HK · pith_short_16: 7M7ZDAHV56HK3MCV · pith_short_8: 7M7ZDAHV

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/7M7ZDAHV56HK3MCV3U6Y7EOQ3H \
  | 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: fb3f9180f5ef8eadb055dd3d8f91d0d9ca8fb208e28f4d26caa14962d5797178

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c78bf2e25e930d2da2cbbd3e93450f8baccd73f42ec88b9fa12d363e90617c8a",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-01-21T10:28:12Z",
    "title_canon_sha256": "8c2560490a983dfb145f299ded8861794a49608b71c3712994101c44ad9e2036"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.05579",
    "kind": "arxiv",
    "version": 2
  }
}