Pith Number

pith:TKU5IVBS

pith:2026:TKU5IVBSHHH5OERVMWZQHXJ6PZ

not attested not anchored not stored refs pending

Learning What Matters: Supervising Sparse Attention Routing with Causal Evidence Sets

Jim Allchin

arxiv:2607.21692 v1 · 2026-07-23 · cs.LG · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TKU5IVBSHHH5OERVMWZQHXJ6PZ}

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	2026-07-27T00:20:15.321925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aa9d4543239cfd7123565b303dd3e7e5d53dd640ea9ce62e6b63d566d5f8e72

Aliases

arxiv: 2607.21692 · arxiv_version: 2607.21692v1 · doi: 10.48550/arxiv.2607.21692 · pith_short_12: TKU5IVBSHHH5 · pith_short_16: TKU5IVBSHHH5OERV · pith_short_8: TKU5IVBS

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/TKU5IVBSHHH5OERVMWZQHXJ6PZ \
  | 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: 9aa9d4543239cfd7123565b303dd3e7e5d53dd640ea9ce62e6b63d566d5f8e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c9a3cc79943ce66e668efa1660d67066a28524d5e2c78a6e0429a40e9badde4",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-23T17:11:34Z",
    "title_canon_sha256": "d73c4bf6d0f89ea74da8f66211edfbded2db06205d72b5021b0a89d4e0d29ca2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21692",
    "kind": "arxiv",
    "version": 1
  }
}