Pith Number

pith:D2UVBAKD

pith:2018:D2UVBAKD7FSXKMYI5KNGQ6H5TX

not attested not anchored not stored refs pending

Robin and Steklov isospectral manifolds

Carolyn Gordon, David Webb, Peter Herbrich

arxiv:1808.10741 v1 · 2018-08-31 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2UVBAKD7FSXKMYI5KNGQ6H5TX}

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	2026-05-18T00:06:44.890834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea9508143f965753308ea9a6878fd9dfed307b6e8b497b3197e316ad6930e9d

Aliases

arxiv: 1808.10741 · arxiv_version: 1808.10741v1 · doi: 10.48550/arxiv.1808.10741 · pith_short_12: D2UVBAKD7FSX · pith_short_16: D2UVBAKD7FSXKMYI · pith_short_8: D2UVBAKD

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/D2UVBAKD7FSXKMYI5KNGQ6H5TX \
  | 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: 1ea9508143f965753308ea9a6878fd9dfed307b6e8b497b3197e316ad6930e9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bb0bbe3485061751cea4c42d124434eacaf76194c989c683d721247c7cecaa7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-08-31T14:00:15Z",
    "title_canon_sha256": "565b5a95631c85d0095cbec5557b20295dd655a59452174d84e5ce83869ab1ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10741",
    "kind": "arxiv",
    "version": 1
  }
}