Pith. sign in
Pith Number

pith:CJBGWDZR

pith:2025:CJBGWDZRGL24P6W2S6USAY6M6K
not attested not anchored not stored refs pending

Why do LLMs attend to the first token?

\'Alvaro Arroyo, Christos Perivolaropoulos, Federico Barbero, Michael Bronstein, Petar Veli\v{c}kovi\'c, Razvan Pascanu, Xiangming Gu

arxiv:2504.02732 v4 · 2025-04-03 · 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{CJBGWDZRGL24P6W2S6USAY6M6K}

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.

Cited by

20 papers in Pith

Massive Activations Are Architecturally Robust: A Controlled Scratch/Commitment Residual Stream Test
Small Initialization Matters for Large Language Models
Information-Regularized Attention for Visual-Centric Reasoning
P-Cast Precision in FP8 Attention: Sink-Induced Collapse and the Optimality of S=2^8
Massive Spikes in LLMs are Bias Vectors: Mechanistic Uncovering and Spike-Free Quantization
Receipt and verification
First computed 2026-07-05T11:48:48.431110Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

12426b0f3132f5c7fada97a92063ccf2b0aa5b78e4fa40651db52d65df754e19

Aliases

arxiv: 2504.02732 · arxiv_version: 2504.02732v4 · doi: 10.48550/arxiv.2504.02732 · pith_short_12: CJBGWDZRGL24 · pith_short_16: CJBGWDZRGL24P6W2 · pith_short_8: CJBGWDZR
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/CJBGWDZRGL24P6W2S6USAY6M6K \
  | 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: 12426b0f3132f5c7fada97a92063ccf2b0aa5b78e4fa40651db52d65df754e19
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "152672d7f2da2723a358e5a25a1461305e047c311974f0e50e9df637cf909b2a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-03T16:17:55Z",
    "title_canon_sha256": "8b41f0d8a8bbd12dd2910e94cf9057f8f01b6f7c3911cd602e61efcba2aacc32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.02732",
    "kind": "arxiv",
    "version": 4
  }
}