Pith Number

pith:KPVL5JGC

pith:2017:KPVL5JGCUDVFM3FRWXDBCTQFPT

not attested not anchored not stored refs pending

Fundamental group of log terminal T-varieties

Alvaro Liendo, Antonio Laface, Joaqu\'in Moraga

arxiv:1712.02172 v2 · 2017-12-06 · 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{KPVL5JGCUDVFM3FRWXDBCTQFPT}

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	2026-05-18T00:14:34.275324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53eabea4c2a0ea566cb1b5c6114e057cd1b449b0b7e38ba0553a42ecfc0794dd

Aliases

arxiv: 1712.02172 · arxiv_version: 1712.02172v2 · doi: 10.48550/arxiv.1712.02172 · pith_short_12: KPVL5JGCUDVF · pith_short_16: KPVL5JGCUDVFM3FR · pith_short_8: KPVL5JGC

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/KPVL5JGCUDVFM3FRWXDBCTQFPT \
  | 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: 53eabea4c2a0ea566cb1b5c6114e057cd1b449b0b7e38ba0553a42ecfc0794dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8120600a400501b076c3a84584f951fc370aa7e18874942490b2bcddde1f43aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-12-06T13:07:23Z",
    "title_canon_sha256": "8675862e54273d04303149cb17eee04d561097923d0a3384e1f7b4095f352d45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02172",
    "kind": "arxiv",
    "version": 2
  }
}