Pith Number

pith:NWPGM2CB

pith:2018:NWPGM2CBDRGIIWPVBS2BQECHAT

not attested not anchored not stored refs pending

Problems and solutions of the Fourth International Students' Olympiad in Cryptography NSUCRYPTO

Alexandr Kutsenko, Alexey Oblaukhov, Anastasiya Gorodilova, Bart Preneel, Claude Carlet, Evgeny Gorkunov, Natalia Tokareva, Nikolay Kolomeec, Sergey Agievich, Stjepan Picek, Svetla Nikova, Valeriya Idrisova, Vincent Rijmen

arxiv:1806.02059 v4 · 2018-06-06 · 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{NWPGM2CBDRGIIWPVBS2BQECHAT}

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	2026-05-18T00:05:21.569308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d9e6668411c4c8459f50cb418104704da212e16ee477a2902fcd3efb5ce84de

Aliases

arxiv: 1806.02059 · arxiv_version: 1806.02059v4 · doi: 10.48550/arxiv.1806.02059 · pith_short_12: NWPGM2CBDRGI · pith_short_16: NWPGM2CBDRGIIWPV · pith_short_8: NWPGM2CB

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/NWPGM2CBDRGIIWPVBS2BQECHAT \
  | 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: 6d9e6668411c4c8459f50cb418104704da212e16ee477a2902fcd3efb5ce84de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cde1deccdc085e73320d50f0cced3f5dfad8c858cb9fce3f9026b62ede0f5022",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-06-06T08:28:48Z",
    "title_canon_sha256": "37cdc7cc3dc8495af11a942c876eba4526f659c163a275fb59aabde78edc0c71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02059",
    "kind": "arxiv",
    "version": 4
  }
}