Pith Number

pith:4RI7SOSZ

pith:2026:4RI7SOSZJNH7GBXU7Q2JVIUJ66

not attested not anchored not stored refs pending

The Mori cone of certain Hassett spaces

Davide Ricci

arxiv:2606.22012 v1 · 2026-06-20 · 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{4RI7SOSZJNH7GBXU7Q2JVIUJ66}

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	2026-06-23T02:13:05.526272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e451f93a594b4ff306f4fc349aa289f7bd523a6c89f067a0c057a6d87f6ce6db

Aliases

arxiv: 2606.22012 · arxiv_version: 2606.22012v1 · doi: 10.48550/arxiv.2606.22012 · pith_short_12: 4RI7SOSZJNH7 · pith_short_16: 4RI7SOSZJNH7GBXU · pith_short_8: 4RI7SOSZ

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/4RI7SOSZJNH7GBXU7Q2JVIUJ66 \
  | 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: e451f93a594b4ff306f4fc349aa289f7bd523a6c89f067a0c057a6d87f6ce6db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef2877984bf5ee095a945e44befe19bf1997e6ba2a1caf8da12ba8fc7800d53a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-06-20T12:20:44Z",
    "title_canon_sha256": "6417434627832320e95a25a4bcf90a3744880cd5a51af39d76a452ee975d56b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22012",
    "kind": "arxiv",
    "version": 1
  }
}