Pith Number

pith:MZTARQSU

pith:2025:MZTARQSUJPBLSD256AT5GA6JLS

not attested not anchored not stored refs pending

xKV: Cross-Layer KV-Cache Compression via Aligned Singular Vector Extraction

Chi-Chih Chang, Chien-Yu Lin, Huiqiang Jiang, Hung-Yueh Chiang, Kai-Chiang Wu, Luis Ceze, Mohamed S. Abdelfattah, Wei-Cheng Lin, Xilai Dai, Yash Akhauri, Yucheng Li

arxiv:2503.18893 v2 · 2025-03-24 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MZTARQSUJPBLSD256AT5GA6JLS}

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

9 papers in Pith

WriteSAE: Sparse Autoencoders for Recurrent State

KVCapsule: Efficient Sequential KV Cache Compression for Vision-Language Models with Asymmetric Redundancy

OSCAR: Offline Spectral Covariance-Aware Rotation for 2-bit KV Cache Quantization

EchoKV: Efficient KV Cache Compression via Similarity-Based Reconstruction

AdaHOP: Fast and Accurate Low-Precision Training via Outlier-Pattern-Aware Rotation

Receipt and verification

First computed	2026-05-28T01:04:27.440187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

666608c2544bc2b90f5df027d303c95cbfe469ef7374a3f5cc792a26955f75e1

Aliases

arxiv: 2503.18893 · arxiv_version: 2503.18893v2 · doi: 10.48550/arxiv.2503.18893 · pith_short_12: MZTARQSUJPBL · pith_short_16: MZTARQSUJPBLSD25 · pith_short_8: MZTARQSU

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/MZTARQSUJPBLSD256AT5GA6JLS \
  | 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: 666608c2544bc2b90f5df027d303c95cbfe469ef7374a3f5cc792a26955f75e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbea4ffde791eee594fcc2148979b7574ca335ceb58d99700dbc1d8e163df910",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-03-24T17:06:37Z",
    "title_canon_sha256": "fb828e6b83211df9c16f52a252a2e3ef944b75a5734843472fd11f3b751a3ccb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.18893",
    "kind": "arxiv",
    "version": 2
  }
}