Pith Number

pith:7CW7E4ES

pith:2015:7CW7E4ES2QOSIWQ3BKKZ57FO6G

not attested not anchored not stored refs pending

A census of zeta functions of quartic K3 surfaces over F_2

Andrew V. Sutherland, Kiran S. Kedlaya

arxiv:1511.06945 v3 · 2015-11-22 · math.NT · 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{7CW7E4ES2QOSIWQ3BKKZ57FO6G}

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	2026-05-18T00:53:40.476280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8adf27092d41d245a1b0a959efcaef1932107f0dc372bb0302b55aec3ef7f49

Aliases

arxiv: 1511.06945 · arxiv_version: 1511.06945v3 · doi: 10.48550/arxiv.1511.06945 · pith_short_12: 7CW7E4ES2QOS · pith_short_16: 7CW7E4ES2QOSIWQ3 · pith_short_8: 7CW7E4ES

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/7CW7E4ES2QOSIWQ3BKKZ57FO6G \
  | 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: f8adf27092d41d245a1b0a959efcaef1932107f0dc372bb0302b55aec3ef7f49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "babf945fbf3c4e85010aaff4972dffadf02b9548d08191bcc496248a63505c40",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-11-22T01:33:02Z",
    "title_canon_sha256": "6029485189e9be5bbc2931827228f0c4551d14f48fd06ae3829db59b1d6fb9fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.06945",
    "kind": "arxiv",
    "version": 3
  }
}