Pith Number

pith:2QUHZDUZ

pith:2018:2QUHZDUZ5AD7ASBY56Y53TUK4V

not attested not anchored not stored refs pending

Global log canonical thresholds of minimal $(1,2)$-surfaces

In-Kyun Kim, Joonyeong Won, YongJoo Shin

arxiv:1805.01323 v2 · 2018-05-03 · 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{2QUHZDUZ5AD7ASBY56Y53TUK4V}

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	2026-05-18T00:16:49.790770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4287c8e99e807f04838efb1ddce8ae56649bf5e25bf77fc9dbf52f9f7fcb9ab

Aliases

arxiv: 1805.01323 · arxiv_version: 1805.01323v2 · doi: 10.48550/arxiv.1805.01323 · pith_short_12: 2QUHZDUZ5AD7 · pith_short_16: 2QUHZDUZ5AD7ASBY · pith_short_8: 2QUHZDUZ

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/2QUHZDUZ5AD7ASBY56Y53TUK4V \
  | 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: d4287c8e99e807f04838efb1ddce8ae56649bf5e25bf77fc9dbf52f9f7fcb9ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "780552cae4d2694c54e9d3feed94f698fe85dc758f41b8aa170c6bd08a60265f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-05-03T14:29:35Z",
    "title_canon_sha256": "8a1f864a37f310f4ac2101a5d38f745a64dd06541f8478b4571774e55f7ac662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01323",
    "kind": "arxiv",
    "version": 2
  }
}