Pith Number

pith:NUZDCGDU

pith:2021:NUZDCGDUITDGKNFJML6CNP5MAG

not attested not anchored not stored refs pending

A special Debarre-Voisin fourfold

Jieao Song

arxiv:2106.13287 v2 · 2021-06-24 · 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{NUZDCGDUITDGKNFJML6CNP5MAG}

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	2026-06-10T01:09:09.495058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d3231187444c66534a962fc26bfac01ac66400931a11a44a87679d564cea42e

Aliases

arxiv: 2106.13287 · arxiv_version: 2106.13287v2 · doi: 10.48550/arxiv.2106.13287 · pith_short_12: NUZDCGDUITDG · pith_short_16: NUZDCGDUITDGKNFJ · pith_short_8: NUZDCGDU

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/NUZDCGDUITDGKNFJML6CNP5MAG \
  | 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: 6d3231187444c66534a962fc26bfac01ac66400931a11a44a87679d564cea42e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e76c0d5650b2b14ba2f109cc2f2a2acb17b9a9a70e532ed77d64dc8f7a2ca64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-06-24T19:29:50Z",
    "title_canon_sha256": "2ddfefd928a735ec3bd556c7681dd30937fb0449afb3d11fad5d80cedf06dbb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13287",
    "kind": "arxiv",
    "version": 2
  }
}