Pith Number

pith:4JXFFMFJ

pith:2017:4JXFFMFJSBSKU2UJLZSHXDE7FC

not attested not anchored not stored refs pending

On the $FRS$-generic family of space cusps

Mostafa Salarinoghabi, Pouya Mehdipour

arxiv:1712.08839 v1 · 2017-12-23 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JXFFMFJSBSKU2UJLZSHXDE7FC}

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	2026-05-18T00:27:16.674770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e26e52b0a99064aa6a895e647b8c9f2896893b61f5404ab6865588b7cfe3a699

Aliases

arxiv: 1712.08839 · arxiv_version: 1712.08839v1 · doi: 10.48550/arxiv.1712.08839 · pith_short_12: 4JXFFMFJSBSK · pith_short_16: 4JXFFMFJSBSKU2UJ · pith_short_8: 4JXFFMFJ

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/4JXFFMFJSBSKU2UJLZSHXDE7FC \
  | 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: e26e52b0a99064aa6a895e647b8c9f2896893b61f5404ab6865588b7cfe3a699

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0ba66503c9d6d91a7fc73a859018b82c943818d230efe5b0f18fcd07cf2b625",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-12-23T21:03:03Z",
    "title_canon_sha256": "bc775638bf9d695ace4ad84e19c0b23f0d96c9e7e092e22e4440f434775ea331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08839",
    "kind": "arxiv",
    "version": 1
  }
}