Pith Number

pith:L3EYKBXT

pith:2019:L3EYKBXTJPSK3RG5XMLHAMFIKE

not attested not anchored not stored refs pending

On certain isogenies between K3 surfaces

Alice Garbagnati, Chiara Camere

arxiv:1905.08859 v1 · 2019-05-21 · 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{L3EYKBXTJPSK3RG5XMLHAMFIKE}

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	2026-05-17T23:45:25.036313Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ec98506f34be4adc4ddbb167030a85132ab17e0ff38610f23fc8dbeff7ec672

Aliases

arxiv: 1905.08859 · arxiv_version: 1905.08859v1 · doi: 10.48550/arxiv.1905.08859 · pith_short_12: L3EYKBXTJPSK · pith_short_16: L3EYKBXTJPSK3RG5 · pith_short_8: L3EYKBXT

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/L3EYKBXTJPSK3RG5XMLHAMFIKE \
  | 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: 5ec98506f34be4adc4ddbb167030a85132ab17e0ff38610f23fc8dbeff7ec672

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968850cbc1ee23c271bafa3527c3121b16d2c610e84a833173c1de1e848f23e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-05-21T20:27:32Z",
    "title_canon_sha256": "ce8f331dd022a60b557c9ebb8a5eb297c014e6f10dcb1375dc186cc93501f8df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08859",
    "kind": "arxiv",
    "version": 1
  }
}