Pith Number

pith:ULXCJOW2

pith:2026:ULXCJOW2J7UWS3CCWCVUCKDDKA

not attested not anchored not stored refs pending

TierCheck: Tiered Checkpointing for Fault Tolerance in Large Language Model Training

Feng Jiang, Lichen Pan, Nannan Zhao, Patrick P. C. Lee, Shujie Han, Xiaonan Zhao, Xiao Zhang, Zhijie Huang

arxiv:2605.17821 v1 · 2026-05-18 · cs.DC · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULXCJOW2J7UWS3CCWCVUCKDDKA}

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	2026-05-20T00:05:00.049075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ee24bada4fe9696c42b0ab41286350348b6c9d1f9b8a153828d1abda93bab2

Aliases

arxiv: 2605.17821 · arxiv_version: 2605.17821v1 · doi: 10.48550/arxiv.2605.17821 · pith_short_12: ULXCJOW2J7UW · pith_short_16: ULXCJOW2J7UWS3CC · pith_short_8: ULXCJOW2

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/ULXCJOW2J7UWS3CCWCVUCKDDKA \
  | 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: a2ee24bada4fe9696c42b0ab41286350348b6c9d1f9b8a153828d1abda93bab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bbafb845cafdf28755ea30d50431ea73cadd9dc64d3ed70bbeb2c448b98b23b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2026-05-18T03:48:32Z",
    "title_canon_sha256": "13878dc0b22a52c2150ee2a233d12231182f864959efa0456fed760d5d42ced4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17821",
    "kind": "arxiv",
    "version": 1
  }
}