Pith Number

pith:RQPWWAQS

pith:2015:RQPWWAQSXXWYCZ5K4VZ23PYO5K

not attested not anchored not stored refs pending

Weakly complete complex surfaces

Giuseppe Tomassini, Samuele Mongodi, Zbigniew Slodkowski

arxiv:1504.07215 v1 · 2015-04-27 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQPWWAQSXXWYCZ5K4VZ23PYO5K}

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	2026-05-18T02:17:43.492030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c1f6b0212bded8167aae573adbf0eeaa7829e025ff7f67a095f817533e385d7

Aliases

arxiv: 1504.07215 · arxiv_version: 1504.07215v1 · doi: 10.48550/arxiv.1504.07215 · pith_short_12: RQPWWAQSXXWY · pith_short_16: RQPWWAQSXXWYCZ5K · pith_short_8: RQPWWAQS

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/RQPWWAQSXXWYCZ5K4VZ23PYO5K \
  | 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: 8c1f6b0212bded8167aae573adbf0eeaa7829e025ff7f67a095f817533e385d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8b8108f076923e230908ca89cad66270cf91ff3794b5cf1028cf7ddaf94d9aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2015-04-27T19:21:44Z",
    "title_canon_sha256": "a41e40fa684821c094bab0e6965de20568771ac842bc4491221d3d08b59a76a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07215",
    "kind": "arxiv",
    "version": 1
  }
}