Pith Number

pith:4YN6BTEH

pith:2015:4YN6BTEHMLB7DTFDY73NR3PWMA

not attested not anchored not stored refs pending

On the isospectral orbifold-manifold problem for nonpositively curved locally symmetric spaces

Benjamin Linowitz, Jeffrey S. Meyer

arxiv:1504.01805 v1 · 2015-04-08 · math.DG · math.GT · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YN6BTEHMLB7DTFDY73NR3PWMA}

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	2026-05-18T02:19:18.309943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e61be0cc8762c3f1cca3c7f6d8edf6601f9293028f22f5b9fbd501d380b66004

Aliases

arxiv: 1504.01805 · arxiv_version: 1504.01805v1 · doi: 10.48550/arxiv.1504.01805 · pith_short_12: 4YN6BTEHMLB7 · pith_short_16: 4YN6BTEHMLB7DTFD · pith_short_8: 4YN6BTEH

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/4YN6BTEHMLB7DTFDY73NR3PWMA \
  | 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: e61be0cc8762c3f1cca3c7f6d8edf6601f9293028f22f5b9fbd501d380b66004

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "694235da4f45157f48ffae2408fe967b478a1a42fe8b4cda29090f9168057fc1",
    "cross_cats_sorted": [
      "math.GT",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-04-08T02:37:12Z",
    "title_canon_sha256": "735e98910151e7db310325de63e3c691084350d2727e1bb17024a4df2e35b938"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01805",
    "kind": "arxiv",
    "version": 1
  }
}