Pith Number

pith:DDZGTBFC

pith:2016:DDZGTBFCCYCKNDEGYIA2FEICRY

not attested not anchored not stored refs pending

Using semidirect product of (semi)groups in public key cryptography

Delaram Kahrobaei, Vladimir Shpilrain

arxiv:1604.05542 v1 · 2016-04-19 · cs.CR · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDZGTBFCCYCKNDEGYIA2FEICRY}

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	2026-05-18T01:16:37.376816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f26984a21604a68c86c201a291028e38bf817eb14474d8e7e24817b63fc6ed

Aliases

arxiv: 1604.05542 · arxiv_version: 1604.05542v1 · doi: 10.48550/arxiv.1604.05542 · pith_short_12: DDZGTBFCCYCK · pith_short_16: DDZGTBFCCYCKNDEG · pith_short_8: DDZGTBFC

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/DDZGTBFCCYCKNDEGYIA2FEICRY \
  | 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: 18f26984a21604a68c86c201a291028e38bf817eb14474d8e7e24817b63fc6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a1849b3db1379c19667d17082d11b73211142d05373ca860a2b92f51d463a22",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2016-04-19T12:39:11Z",
    "title_canon_sha256": "30d1c3b6f54f00c25746c241245eeb0d16d5ff1973fc8e6a90f8089b4a8e4d63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05542",
    "kind": "arxiv",
    "version": 1
  }
}