Pith Number

pith:ALLPXPLB

pith:2017:ALLPXPLBOCT6R6DQAX2R3N4SPC

not attested not anchored not stored refs pending

Super-rigid Affine Fano Varieties

Adrien Dubouloz, Ivan Cheltsov, Jihun Park

arxiv:1712.09148 v1 · 2017-12-26 · 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{ALLPXPLBOCT6R6DQAX2R3N4SPC}

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	2026-05-17T23:53:12.559046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02d6fbbd6170a7e8f87005f51db792789286465141dc162ddd0154866f311f71

Aliases

arxiv: 1712.09148 · arxiv_version: 1712.09148v1 · doi: 10.48550/arxiv.1712.09148 · pith_short_12: ALLPXPLBOCT6 · pith_short_16: ALLPXPLBOCT6R6DQ · pith_short_8: ALLPXPLB

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/ALLPXPLBOCT6R6DQAX2R3N4SPC \
  | 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: 02d6fbbd6170a7e8f87005f51db792789286465141dc162ddd0154866f311f71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee9f9aa21206506f9649181b5ae71f00f6008adb586d9d5256e3090ef423bd53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-12-26T00:19:58Z",
    "title_canon_sha256": "2f99b06b5a316746168713ed7613c8353e0bceb9dce29b500e7d4e5d22ee935f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09148",
    "kind": "arxiv",
    "version": 1
  }
}