Pith Number

pith:5ZOQM35R

pith:2010:5ZOQM35RFSA2SWMDVPYZYS6NK6

not attested not anchored not stored refs pending

Isospectral metrics on weighted projective spaces

Martin Weilandt

arxiv:1004.1360 v3 · 2010-04-08 · math.DG · 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{5ZOQM35RFSA2SWMDVPYZYS6NK6}

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	2026-05-18T03:53:07.281683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee5d066fb12c81a95983abf19c4bcd57b81b3604ea6bc9750584ff9ebce27570

Aliases

arxiv: 1004.1360 · arxiv_version: 1004.1360v3 · doi: 10.48550/arxiv.1004.1360 · pith_short_12: 5ZOQM35RFSA2 · pith_short_16: 5ZOQM35RFSA2SWMD · pith_short_8: 5ZOQM35R

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/5ZOQM35RFSA2SWMDVPYZYS6NK6 \
  | 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: ee5d066fb12c81a95983abf19c4bcd57b81b3604ea6bc9750584ff9ebce27570

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13530a1dcc74118472563975404a8bde9f5e4f4dbc20640b2629613952f56055",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-04-08T15:12:07Z",
    "title_canon_sha256": "340c643884b0a3a5387a2a2afa48961cc23f41b3a29b7889877a1438d0a074a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1360",
    "kind": "arxiv",
    "version": 3
  }
}