Pith Number

pith:2NDZIIC4

pith:2015:2NDZIIC4SNAHLSRFF5OAPSRMKU

not attested not anchored not stored refs pending

Analysis of a certain polycyclic-group-based cryptosystem

Alexander Ushakov, Matvei Kotov

arxiv:1504.05040 v1 · 2015-04-20 · 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{2NDZIIC4SNAHLSRFF5OAPSRMKU}

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	2026-05-18T02:18:22.803403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d34794205c934075ca252f5c07ca2c551a12470cf43fb16a1bb46af7f82a15e9

Aliases

arxiv: 1504.05040 · arxiv_version: 1504.05040v1 · doi: 10.48550/arxiv.1504.05040 · pith_short_12: 2NDZIIC4SNAH · pith_short_16: 2NDZIIC4SNAHLSRF · pith_short_8: 2NDZIIC4

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/2NDZIIC4SNAHLSRFF5OAPSRMKU \
  | 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: d34794205c934075ca252f5c07ca2c551a12470cf43fb16a1bb46af7f82a15e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abda19615e64da9d3e30248c71b3a684a849a59b95a260fb17bf3b3e8f4e7b57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-04-20T12:56:34Z",
    "title_canon_sha256": "27171ed8a77b66808e639601e2984e117ae7cb67bf3b7c91d8707c3ad5392335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05040",
    "kind": "arxiv",
    "version": 1
  }
}