Pith Number

pith:UHDQVXGS

pith:2017:UHDQVXGSL6V5QIVUAHQ6MUIMBO

not attested not anchored not stored refs pending

Equiangular surfaces, self-similar surfaces and the geometry of sea shells

Khristo N. Boyadzhiev

arxiv:1702.03887 v1 · 2017-02-07 · math.HO · 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{UHDQVXGSL6V5QIVUAHQ6MUIMBO}

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	2026-05-18T00:50:52.817470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c70adcd25fabd822b401e1e6510c0ba906dc62c686847f2cd312dd4b974a1c

Aliases

arxiv: 1702.03887 · arxiv_version: 1702.03887v1 · doi: 10.48550/arxiv.1702.03887 · pith_short_12: UHDQVXGSL6V5 · pith_short_16: UHDQVXGSL6V5QIVU · pith_short_8: UHDQVXGS

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/UHDQVXGSL6V5QIVUAHQ6MUIMBO \
  | 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: a1c70adcd25fabd822b401e1e6510c0ba906dc62c686847f2cd312dd4b974a1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29bf64cf9ecec8b5c2b41da1afa0eeef4e4ecf919d28cf72d3e2161f365c42f9",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2017-02-07T23:56:18Z",
    "title_canon_sha256": "cd069597e090e0a029b29f2ce605b0c2927446c6dd2d3aba6e73257183d0c960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03887",
    "kind": "arxiv",
    "version": 1
  }
}