Pith Number

pith:FTW7ULHG

pith:2013:FTW7ULHG44BN62MIDQ6BGATFI2

not attested not anchored not stored refs pending

A new construction of lens spaces

Dong Youp Suh, Soumen Sarkar

arxiv:1304.4836 v2 · 2013-04-17 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTW7ULHG44BN62MIDQ6BGATFI2}

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	2026-05-18T01:21:41.992858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cedfa2ce6e702df69881c3c13026546bd2b578585b5d596a314cfdcd4fa05e8

Aliases

arxiv: 1304.4836 · arxiv_version: 1304.4836v2 · doi: 10.48550/arxiv.1304.4836 · pith_short_12: FTW7ULHG44BN · pith_short_16: FTW7ULHG44BN62MI · pith_short_8: FTW7ULHG

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/FTW7ULHG44BN62MIDQ6BGATFI2 \
  | 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: 2cedfa2ce6e702df69881c3c13026546bd2b578585b5d596a314cfdcd4fa05e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0519b6aece3d372bd1a26bc79d1ea2f86a664ba4d5fa88e5a2eee91205a05a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-04-17T14:23:40Z",
    "title_canon_sha256": "40caef19f170d12b9d013e86ddd707f87887c1529f260ceadd2189a6c460d768"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4836",
    "kind": "arxiv",
    "version": 2
  }
}