Pith Number

pith:377VLCVN

pith:2016:377VLCVN6DG5NORGMINAZYJI3H

not attested not anchored not stored refs pending

Topological rigidity fails for quotients of the Davis complex

Emily Stark

arxiv:1610.08699 v2 · 2016-10-27 · math.GT · 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{377VLCVN6DG5NORGMINAZYJI3H}

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	2026-05-18T00:35:18.477034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfff558aadf0cdd6ba26621a0ce128d9ec123c56bf9f3d42deaf9ecfa4b231fd

Aliases

arxiv: 1610.08699 · arxiv_version: 1610.08699v2 · doi: 10.48550/arxiv.1610.08699 · pith_short_12: 377VLCVN6DG5 · pith_short_16: 377VLCVN6DG5NORG · pith_short_8: 377VLCVN

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/377VLCVN6DG5NORGMINAZYJI3H \
  | 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: dfff558aadf0cdd6ba26621a0ce128d9ec123c56bf9f3d42deaf9ecfa4b231fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "317ee4ca2eb297db9964c950dcc41487585388f4db791440f2f10052d211f406",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-10-27T10:57:42Z",
    "title_canon_sha256": "9339ed24963e746895c8ae42e580f1cc11a5e2af41f3080bd74d4f95c449ddee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.08699",
    "kind": "arxiv",
    "version": 2
  }
}