Pith Number

pith:S4JG3NXF

pith:2025:S4JG3NXFAOHNKFN5DJT4SC5AZP

not attested not anchored not stored refs pending

Hetu v2: A General and Scalable Deep Learning System with Hierarchical and Heterogeneous Single Program Multiple Data Annotations

Bin Cui, Fangcheng Fu, Hao Ge, Haoyang Li, Jiawen Niu, Sheng Lin, Xuanyu Wang, Xupeng Miao, Yuming Zhou

arxiv:2504.20490 v2 · 2025-04-29 · 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{S4JG3NXFAOHNKFN5DJT4SC5AZP}

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

2 papers in Pith

HARP: Orchestrating Automated Parallel Training on Heterogeneous GPU Clusters

HexiSeq: Accommodating Long Context Training of LLMs over Heterogeneous Hardware

Receipt and verification

First computed	2026-07-02T01:18:02.759853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97126db6e5038ed515bd1a67c90ba0cbd225b4206e9a715d649b73ca7ddc74d0

Aliases

arxiv: 2504.20490 · arxiv_version: 2504.20490v2 · doi: 10.48550/arxiv.2504.20490 · pith_short_12: S4JG3NXFAOHN · pith_short_16: S4JG3NXFAOHNKFN5 · pith_short_8: S4JG3NXF

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/S4JG3NXFAOHNKFN5DJT4SC5AZP \
  | 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: 97126db6e5038ed515bd1a67c90ba0cbd225b4206e9a715d649b73ca7ddc74d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dac55a321eb75d9cc9f4746a327ae8bc565c6eb6c802e6bf93bcb93244aea2c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2025-04-29T07:27:54Z",
    "title_canon_sha256": "3a118d13ff641bc1ef74ba5d0426175e6545dbd4d903f68bcf12adf3fcc12b6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20490",
    "kind": "arxiv",
    "version": 2
  }
}