Pith Number

pith:QYJM2YJT

pith:2026:QYJM2YJT7TRUC6DNJ3WSH42MGT

not attested not anchored not stored refs pending

Rigel: Reverse-Engineering the Metal 4.1 Tensor Compute Path on the Apple M4 Max GPU

Ramchand Kumaresan

arxiv:2606.12765 v1 · 2026-06-11 · cs.CL · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYJM2YJT7TRUC6DNJ3WSH42MGT}

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	2026-06-12T01:08:49.990340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8612cd6133fce341786d4eed23f34c34eeda5135ef99ede874bd58f281e3789d

Aliases

arxiv: 2606.12765 · arxiv_version: 2606.12765v1 · doi: 10.48550/arxiv.2606.12765 · pith_short_12: QYJM2YJT7TRU · pith_short_16: QYJM2YJT7TRUC6DN · pith_short_8: QYJM2YJT

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/QYJM2YJT7TRUC6DNJ3WSH42MGT \
  | 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: 8612cd6133fce341786d4eed23f34c34eeda5135ef99ede874bd58f281e3789d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3464a2596bc0face6fde11447ff60898e714028913c99e20e3585abee912128e",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-11T00:10:23Z",
    "title_canon_sha256": "8c600ae4c3b4ed403f4f4d6036a3048424c74ed6ac41dca479e3bf0627a8190b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12765",
    "kind": "arxiv",
    "version": 1
  }
}