Pith Number

pith:SATHPSSB

pith:1995:SATHPSSBPRVASGUCB6QLE33S4Z

not attested not anchored not stored refs pending

Open problems on open algebraic varieties

David Wright, Fumio Sakai, Masayoshi Miyanishi, Mikhail Zaidenberg, N. Mohan Kumar, Peter Russell, R.V. Gurjar, Shulim Kaliman

arxiv:alg-geom/9506006 v1 · 1995-06-02 · alg-geom · 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{SATHPSSBPRVASGUCB6QLE33S4Z}

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	2026-07-04T15:08:04.621176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

902677ca417c6a091a820fa0b26f72e672dcab3aebbda8616ccc9d9d489cb14c

Aliases

arxiv: alg-geom/9506006 · arxiv_version: alg-geom/9506006v1 · doi: 10.48550/arxiv.alg-geom/9506006 · pith_short_12: SATHPSSBPRVA · pith_short_16: SATHPSSBPRVASGUC · pith_short_8: SATHPSSB

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/SATHPSSBPRVASGUCB6QLE33S4Z \
  | 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: 902677ca417c6a091a820fa0b26f72e672dcab3aebbda8616ccc9d9d489cb14c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73c8aeb8503d241386f9a3da656009ed9f1bd294ad21fff44743c89df532018",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1995-06-02T21:06:20Z",
    "title_canon_sha256": "b778692c511dc5516aa70f4fa543603d6818c129eb0ae2d06b0b507bc1d611cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9506006",
    "kind": "arxiv",
    "version": 1
  }
}