Pith Number

pith:NMQL2P2N

pith:2012:NMQL2P2NWZOSUMDVA3WBDT7ILU

not attested not anchored not stored refs pending

Primitive disk complexes for lens spaces

Sangbum Cho, Yuya Koda

arxiv:1206.6243 v1 · 2012-06-27 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NMQL2P2NWZOSUMDVA3WBDT7ILU}

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	2026-05-18T03:52:27.233002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b20bd3f4db65d2a307506ec11cfe85d021c1e7c6b7b192dd11c75652f384da7

Aliases

arxiv: 1206.6243 · arxiv_version: 1206.6243v1 · doi: 10.48550/arxiv.1206.6243 · pith_short_12: NMQL2P2NWZOS · pith_short_16: NMQL2P2NWZOSUMDV · pith_short_8: NMQL2P2N

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/NMQL2P2NWZOSUMDVA3WBDT7ILU \
  | 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: 6b20bd3f4db65d2a307506ec11cfe85d021c1e7c6b7b192dd11c75652f384da7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42a52283ddfdf9483d2f8d7a4f969567efb8cc106d17c8564ef7e0dfac4ed48b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-06-27T12:10:30Z",
    "title_canon_sha256": "230d978a08c126637a1e7d59a7295d8eddd5e0b19edda075918fd224f400dc0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6243",
    "kind": "arxiv",
    "version": 1
  }
}