Pith Number

pith:BDMD7FGF

pith:2014:BDMD7FGFL5HMWMFJ4TBOLLU7OJ

not attested not anchored not stored refs pending

A new structural approach to isoparametric hypersurfaces in spheres

Anna Siffert

arxiv:1410.6206 v2 · 2014-10-22 · 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{BDMD7FGFL5HMWMFJ4TBOLLU7OJ}

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	2026-05-18T00:36:04.233607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08d83f94c55f4ecb30a9e4c2e5ae9f726d8c6e8f125fe7e723e744b668a395dd

Aliases

arxiv: 1410.6206 · arxiv_version: 1410.6206v2 · doi: 10.48550/arxiv.1410.6206 · pith_short_12: BDMD7FGFL5HM · pith_short_16: BDMD7FGFL5HMWMFJ · pith_short_8: BDMD7FGF

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/BDMD7FGFL5HMWMFJ4TBOLLU7OJ \
  | 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: 08d83f94c55f4ecb30a9e4c2e5ae9f726d8c6e8f125fe7e723e744b668a395dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "566aa59699a0542544985243d6098c23574b7d0010c4c3cf9e78ee9765c97572",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-10-22T22:16:59Z",
    "title_canon_sha256": "6eaf816e9116c8ccf20e0b73fa2eb25807a8d34305660c5e81d74f75e63e7a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6206",
    "kind": "arxiv",
    "version": 2
  }
}