Pith Number

pith:X2RRUIMM

pith:2010:X2RRUIMMSOU46PPJLDU6QO7XXT

not attested not anchored not stored refs pending

A note on a supersingular K3 surface in characteristic 2

Shigeyuki Kondo, Toshiyuki Katsura

arxiv:1010.5835 v2 · 2010-10-28 · 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{X2RRUIMMSOU46PPJLDU6QO7XXT}

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	2026-05-18T04:22:29.565811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bea31a218c93a9cf3de958e9e83bf7bcec0384cfd80626001ebdede65d437251

Aliases

arxiv: 1010.5835 · arxiv_version: 1010.5835v2 · doi: 10.48550/arxiv.1010.5835 · pith_short_12: X2RRUIMMSOU4 · pith_short_16: X2RRUIMMSOU46PPJ · pith_short_8: X2RRUIMM

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/X2RRUIMMSOU46PPJLDU6QO7XXT \
  | 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: bea31a218c93a9cf3de958e9e83bf7bcec0384cfd80626001ebdede65d437251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d87c12bf9f3112e5686eb83ce3d3a6a62d89ac60c87667755cb5b4bfdd451698",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-10-28T01:17:52Z",
    "title_canon_sha256": "6f4ce5a5b49ac51308f6cb00f30985f11908d68bc112848059843fa792188549"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5835",
    "kind": "arxiv",
    "version": 2
  }
}