Pith Number

pith:O2UTVV5Y

pith:2026:O2UTVV5YCF7UTOX7LWIAHQR6DL

not attested not anchored not stored refs pending

Clark Hash: Stateless Sparse Johnson-Lindenstrauss Quantization for Neural Embeddings

Clark Labs Inc, Stanislav Kirdey

arxiv:2605.28034 v1 · 2026-05-27 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2UTVV5YCF7UTOX7LWIAHQR6DL}

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	2026-05-28T01:04:56.584442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76a93ad7b8117f49baff5d9003c23e1aca511f168a115752731894e6b5e867a0

Aliases

arxiv: 2605.28034 · arxiv_version: 2605.28034v1 · doi: 10.48550/arxiv.2605.28034 · pith_short_12: O2UTVV5YCF7U · pith_short_16: O2UTVV5YCF7UTOX7 · pith_short_8: O2UTVV5Y

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/O2UTVV5YCF7UTOX7LWIAHQR6DL \
  | 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: 76a93ad7b8117f49baff5d9003c23e1aca511f168a115752731894e6b5e867a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4a76064656c343959a4a6f539e989a69cfe584e649632190e94ead31ee5e3d8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-27T06:38:41Z",
    "title_canon_sha256": "8ddad28f1f925c1c1b2070bbc810724415ff808e379fe5ba959e21d6037d030e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28034",
    "kind": "arxiv",
    "version": 1
  }
}