Pith Number

pith:PWEFLZIK

pith:2019:PWEFLZIKQWK5HSRLRSXYKOGUKS

not attested not anchored not stored refs pending

About a question of Gateva-Ivanova and Cameron on square-free set-theoretic solutions of the Yang-Baxter equation

Francesco Catino, Giuseppina Pinto, Marco Castelli

arxiv:1904.07805 v1 · 2019-04-16 · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWEFLZIKQWK5HSRLRSXYKOGUKS}

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	2026-05-17T23:48:24.173615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d8855e50a8595d3ca2b8caf8538d454bab861ec369b75c17a6ce02369b2e7e0

Aliases

arxiv: 1904.07805 · arxiv_version: 1904.07805v1 · doi: 10.48550/arxiv.1904.07805 · pith_short_12: PWEFLZIKQWK5 · pith_short_16: PWEFLZIKQWK5HSRL · pith_short_8: PWEFLZIK

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/PWEFLZIKQWK5HSRLRSXYKOGUKS \
  | 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: 7d8855e50a8595d3ca2b8caf8538d454bab861ec369b75c17a6ce02369b2e7e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24891706a49a972ba1ef9d7c7c0f156a1319bcf649e0c5a4ba694cb7585d30be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2019-04-16T16:36:45Z",
    "title_canon_sha256": "b8455e993bb7c7c73b27e2e0cfc574e4846e74f30ad7789ab32b560fa8d05fbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07805",
    "kind": "arxiv",
    "version": 1
  }
}