Pith Number

pith:344JPZL7

pith:2012:344JPZL7FLRIKAPNTM3GCCMCCF

not attested not anchored not stored refs pending

Bouligand-Severi Tangents in MV-Algebras

Daniele Mundici, Manuela Busaniche

arxiv:1204.2147 v1 · 2012-04-10 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{344JPZL7FLRIKAPNTM3GCCMCCF}

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	2026-05-18T03:58:13.159216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df3897e57f2ae28501ed9b3661098211427cd08bf8d366ace552f55a56113e67

Aliases

arxiv: 1204.2147 · arxiv_version: 1204.2147v1 · doi: 10.48550/arxiv.1204.2147 · pith_short_12: 344JPZL7FLRI · pith_short_16: 344JPZL7FLRIKAPN · pith_short_8: 344JPZL7

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/344JPZL7FLRIKAPNTM3GCCMCCF \
  | 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: df3897e57f2ae28501ed9b3661098211427cd08bf8d366ace552f55a56113e67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be5dbedd788242dd053cd99efc7bc46fe5a9947d2a978ee4644a9f318e1f33c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-04-10T13:39:56Z",
    "title_canon_sha256": "17721abc98e717878e25fa1afb9f406cadbff2b0e891c98a73faa92055f1733c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2147",
    "kind": "arxiv",
    "version": 1
  }
}