Pith Number

pith:4FHETSWY

pith:2011:4FHETSWYEKQJJFSTYSVPI6TYNG

not attested not anchored not stored refs pending

The Akhmedov-Park exotic CP^2 # 3(-CP^2)

Selman Akbulut

arxiv:1106.3924 v4 · 2011-06-20 · math.GT · math.AG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4FHETSWYEKQJJFSTYSVPI6TYNG}

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	2026-05-18T02:21:43.731519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e14e49cad822a0949653c4aaf47a7869bbcfc73a44e7cf0cf3b710a801405e32

Aliases

arxiv: 1106.3924 · arxiv_version: 1106.3924v4 · doi: 10.48550/arxiv.1106.3924 · pith_short_12: 4FHETSWYEKQJ · pith_short_16: 4FHETSWYEKQJJFST · pith_short_8: 4FHETSWY

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/4FHETSWYEKQJJFSTYSVPI6TYNG \
  | 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: e14e49cad822a0949653c4aaf47a7869bbcfc73a44e7cf0cf3b710a801405e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2a9a1f3919b0a9d759913117a385add146547b865cc1412189d9df253ae37dd",
    "cross_cats_sorted": [
      "math.AG",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2011-06-20T14:44:01Z",
    "title_canon_sha256": "4d3277a5344525c10dc37aeee75a4b8cdf73b1b879cf517b01ac449f3e599b7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3924",
    "kind": "arxiv",
    "version": 4
  }
}