Pith Number

pith:MWKQ5GJA

pith:2018:MWKQ5GJA3XSNAXKORBP7MG3CMR

not attested not anchored not stored refs pending

A Brief Retrospective Look at the Cayley-Purser Public-key Cryptosystem, 19 Years Later

Douglas R. Stinson

arxiv:1803.05004 v1 · 2018-03-13 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWKQ5GJA3XSNAXKORBP7MG3CMR}

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	2026-05-18T00:21:02.322169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65950e9920dde4d05d4e885ff61b62644da038fc0e0faa7453b04fae3e5f0852

Aliases

arxiv: 1803.05004 · arxiv_version: 1803.05004v1 · doi: 10.48550/arxiv.1803.05004 · pith_short_12: MWKQ5GJA3XSN · pith_short_16: MWKQ5GJA3XSNAXKO · pith_short_8: MWKQ5GJA

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/MWKQ5GJA3XSNAXKORBP7MG3CMR \
  | 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: 65950e9920dde4d05d4e885ff61b62644da038fc0e0faa7453b04fae3e5f0852

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beba20ac1d154a37d62ade3e271e615dde5dd6f5339b4436e177807e30461334",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-03-13T18:58:06Z",
    "title_canon_sha256": "cbfa4cf3540e6b5e9ec7809135d1fea2156c9ffc32541c81c4c90d13c6c3663f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05004",
    "kind": "arxiv",
    "version": 1
  }
}