Pith Number

pith:552OR5EM

pith:2014:552OR5EM4GAABCCLPWFR4U7QA2

not attested not anchored not stored refs pending

An infinite order cork

Selman Akbulut

arxiv:1408.3200 v2 · 2014-08-14 · math.GT · 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{552OR5EM4GAABCCLPWFR4U7QA2}

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	2026-05-18T02:41:03.316247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef74e8f48ce18000884b7d8b1e53f0068a67afcf9dcd7b832c952e86a6c7777c

Aliases

arxiv: 1408.3200 · arxiv_version: 1408.3200v2 · doi: 10.48550/arxiv.1408.3200 · pith_short_12: 552OR5EM4GAA · pith_short_16: 552OR5EM4GAABCCL · pith_short_8: 552OR5EM

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/552OR5EM4GAABCCLPWFR4U7QA2 \
  | 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: ef74e8f48ce18000884b7d8b1e53f0068a67afcf9dcd7b832c952e86a6c7777c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e22ac03e6afdc714d3d0ce1d6cf91947cc84a27aef8e92cebb3c8c859fd43ae",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-08-14T06:04:18Z",
    "title_canon_sha256": "17e205acc617b2a328f1260a32cee211ff428e1b26ad5c468c836eed018eb8e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3200",
    "kind": "arxiv",
    "version": 2
  }
}