Pith Number

pith:JWF4S52T

pith:2015:JWF4S52TDGKHTRZN5FTD245XV7

not attested not anchored not stored refs pending

On characteristic curves of developable surfaces in Euclidean 3-space

Fatih Dogan

arxiv:1508.05439 v1 · 2015-08-22 · 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{JWF4S52TDGKHTRZN5FTD245XV7}

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	2026-05-18T01:34:53.961275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d8bc97753199479c72de9663d73b7afc40d02df8408b3d6d9a25cb559e5d81e

Aliases

arxiv: 1508.05439 · arxiv_version: 1508.05439v1 · doi: 10.48550/arxiv.1508.05439 · pith_short_12: JWF4S52TDGKH · pith_short_16: JWF4S52TDGKHTRZN · pith_short_8: JWF4S52T

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/JWF4S52TDGKHTRZN5FTD245XV7 \
  | 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: 4d8bc97753199479c72de9663d73b7afc40d02df8408b3d6d9a25cb559e5d81e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e5ab34cd97c9756c88ebc119db5e88c286e0788789b027e6530c2f874eab93c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-08-22T00:02:24Z",
    "title_canon_sha256": "af552cba794c1ea7cd84a775642b897961a22a19122537bfe7d7e7ea29cda233"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05439",
    "kind": "arxiv",
    "version": 1
  }
}