Pith Number

pith:WMXO5Z2Q

pith:2013:WMXO5Z2QK3VVKQ5C44PKJASZHO

not attested not anchored not stored refs pending

Analytical aspects of isospectral drums

A.F.M. ter Elst, J.B. Kennedy, W. Arendt

arxiv:1305.1775 v1 · 2013-05-08 · math.AP · 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{WMXO5Z2QK3VVKQ5C44PKJASZHO}

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	2026-05-18T03:26:11.249709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b32eeee75056eb5543a2e71ea482593b85c37a6e47aaa9b3cc951c8bfe75afe4

Aliases

arxiv: 1305.1775 · arxiv_version: 1305.1775v1 · doi: 10.48550/arxiv.1305.1775 · pith_short_12: WMXO5Z2QK3VV · pith_short_16: WMXO5Z2QK3VVKQ5C · pith_short_8: WMXO5Z2Q

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/WMXO5Z2QK3VVKQ5C44PKJASZHO \
  | 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: b32eeee75056eb5543a2e71ea482593b85c37a6e47aaa9b3cc951c8bfe75afe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a994ab7d2830eec9b0e83245284a7f42ec9c8298bd21a13f51bf6b8fbec38074",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-08T11:00:20Z",
    "title_canon_sha256": "293ea33b3cbdc94c33e44809121fb50197d2998d42d683b516fa81f0fc371836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1775",
    "kind": "arxiv",
    "version": 1
  }
}