Pith Number

pith:HRYCTKD6

pith:2018:HRYCTKD6KH7AQZ7RODEKN6SAYA

not attested not anchored not stored refs pending

On the Classification of Topological Quandles

Boris Shekhtman, Mohamed Elhamdadi, Zhiyun Cheng

arxiv:1803.00671 v1 · 2018-03-02 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRYCTKD6KH7AQZ7RODEKN6SAYA}

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	2026-05-17T23:39:41.911952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c7029a87e51fe0867f170c8a6fa40c00532d24d8f49acf9944b647e9da18c8f

Aliases

arxiv: 1803.00671 · arxiv_version: 1803.00671v1 · doi: 10.48550/arxiv.1803.00671 · pith_short_12: HRYCTKD6KH7A · pith_short_16: HRYCTKD6KH7AQZ7R · pith_short_8: HRYCTKD6

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/HRYCTKD6KH7AQZ7RODEKN6SAYA \
  | 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: 3c7029a87e51fe0867f170c8a6fa40c00532d24d8f49acf9944b647e9da18c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42076ba132abc11c4513cfcc5e5526f20b48dfd6359e8b925db7d9b6a4fa493",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-03-02T00:30:27Z",
    "title_canon_sha256": "eab37a22cde453081a9440a7c24f53a68233e725c0396c1bff88c761bc33cddf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00671",
    "kind": "arxiv",
    "version": 1
  }
}