Pith Number

pith:YKUE67AD

pith:2026:YKUE67AD6VUSXZ3BOHXVIOSZXB

not attested not anchored not stored refs pending

A Training-Memory Regression in MLA Sequence Parallelism: Why Megatron-Core Forbids Absorption, and LAGA -- a Communication-Efficient Fix

Changzheng Ma

arxiv:2607.17644 v1 · 2026-07-20 · 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{YKUE67AD6VUSXZ3BOHXVIOSZXB}

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	2026-07-21T01:21:56.872011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2a84f7c03f5692be76171ef543a59b867cf0f1f61de72607382056539f910ed

Aliases

arxiv: 2607.17644 · arxiv_version: 2607.17644v1 · doi: 10.48550/arxiv.2607.17644 · pith_short_12: YKUE67AD6VUS · pith_short_16: YKUE67AD6VUSXZ3B · pith_short_8: YKUE67AD

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/YKUE67AD6VUSXZ3BOHXVIOSZXB \
  | 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: c2a84f7c03f5692be76171ef543a59b867cf0f1f61de72607382056539f910ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "998e7d6fc4ec61e701d48cae1b3adbda0d3f59e97e83ef7002eba2969d30a6e7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2026-07-20T07:57:34Z",
    "title_canon_sha256": "dc371da43d7bcf12d62cd3e75667e8a06c1257af02b88e29d4f17399c85d0342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17644",
    "kind": "arxiv",
    "version": 1
  }
}