Pith Number

pith:I4OZD25R

pith:2026:I4OZD25RPQNDWWMTAOQWD7OJZU

not attested not anchored not stored refs pending

Untied Ulysses: Memory-Efficient Context Parallelism via Headwise Chunking

Maksim Abraham, Max Ryabinin, Ravi Ghadia, Sergei Vorobyov

arxiv:2602.21196 v2 · 2026-02-24 · cs.LG · 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{I4OZD25RPQNDWWMTAOQWD7OJZU}

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	2026-07-13T01:18:03.236503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471d91ebb17c1a3b599303a161fdc9cd33cdd777f2504d610b4d14ca9b89608e

Aliases

arxiv: 2602.21196 · arxiv_version: 2602.21196v2 · doi: 10.48550/arxiv.2602.21196 · pith_short_12: I4OZD25RPQND · pith_short_16: I4OZD25RPQNDWWMT · pith_short_8: I4OZD25R

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/I4OZD25RPQNDWWMTAOQWD7OJZU \
  | 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: 471d91ebb17c1a3b599303a161fdc9cd33cdd777f2504d610b4d14ca9b89608e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d06cbe08572717f374a26f755815a7487a801944ffd87523823a5ef11c80858",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-24T18:54:39Z",
    "title_canon_sha256": "92bdbea654c1527529713cbc1ad0af11e44a6378434e5e9dcf4a8cdc2d8385ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.21196",
    "kind": "arxiv",
    "version": 2
  }
}