Pith Number

pith:G4DMJWPX

pith:2026:G4DMJWPXLJA6YWFPMZP6WVF7CJ

not attested not anchored not stored refs pending

When Do Attention Circuits Form? Developmental Trajectories of Capability and Attention-Sink Emergence Across Three 1B-ClassArchitectures

Yongzhong Xu

arxiv:2606.02378 v1 · 2026-06-01 · cs.LG · 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{G4DMJWPXLJA6YWFPMZP6WVF7CJ}

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	2026-06-02T03:04:57.608259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3706c4d9f75a41ec58af665feb54bf124c6cf8e786e29a7efaab581d20029b4c

Aliases

arxiv: 2606.02378 · arxiv_version: 2606.02378v1 · doi: 10.48550/arxiv.2606.02378 · pith_short_12: G4DMJWPXLJA6 · pith_short_16: G4DMJWPXLJA6YWFP · pith_short_8: G4DMJWPX

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/G4DMJWPXLJA6YWFPMZP6WVF7CJ \
  | 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: 3706c4d9f75a41ec58af665feb54bf124c6cf8e786e29a7efaab581d20029b4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e00d2e55fc190201a0e8cbc7b5065725f2339d42c4720bbfc51047df1a2cb116",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-01T15:26:23Z",
    "title_canon_sha256": "9f412608c21f737a6004d8d624a4add7d9c2f8fd685741acec0b15fff216f8b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02378",
    "kind": "arxiv",
    "version": 1
  }
}