Pith Number

pith:M47LWJQK

pith:2014:M47LWJQKTLB4QKFMMUU2L7ZX7L

not attested not anchored not stored refs pending

Some noncoherent, nonpositively curved K\"ahler groups

Pierre Py

arxiv:1410.8556 v1 · 2014-10-30 · math.GT · math.AG · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M47LWJQKTLB4QKFMMUU2L7ZX7L}

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	2026-05-18T00:47:53.651150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

673ebb260a9ac3c828ac6529a5ff37fae501d1b67786ebc745ef2930bbd1c28f

Aliases

arxiv: 1410.8556 · arxiv_version: 1410.8556v1 · doi: 10.48550/arxiv.1410.8556 · pith_short_12: M47LWJQKTLB4 · pith_short_16: M47LWJQKTLB4QKFM · pith_short_8: M47LWJQK

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/M47LWJQKTLB4QKFMMUU2L7ZX7L \
  | 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: 673ebb260a9ac3c828ac6529a5ff37fae501d1b67786ebc745ef2930bbd1c28f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c163f3f024466ae679ac5c24433e26aaef9e264988ecb6c8bcf0a23118d41fa",
    "cross_cats_sorted": [
      "math.AG",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-10-30T21:06:16Z",
    "title_canon_sha256": "4a33d92bcf09d68234a09ca172a424fdacb11f2545d4c61e2d43f0f2b4d14a9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.8556",
    "kind": "arxiv",
    "version": 1
  }
}