Pith Number

pith:P6JXQAXT

pith:2026:P6JXQAXTVGSEVBINKZIAIBIML7

not attested not anchored not stored refs pending

torchtune: PyTorch native post-training library

Ariel Kwiatkowski, Evan Smothers, Felipe Mello, Joseph Cummings, Mark Obozov, Maxime Griot, Mircea Mironenco, Nathan Azrak, Philip John Bontrager, Rafi Ayub, Salman Mohammadi

arxiv:2605.21442 v1 · 2026-05-20 · cs.LG · 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{P6JXQAXTVGSEVBINKZIAIBIML7}

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	2026-05-21T02:05:37.353405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f937802f3a9a44a850d565004050c5fe2645ab85d7e1d0818cd6d43eca6ff40

Aliases

arxiv: 2605.21442 · arxiv_version: 2605.21442v1 · doi: 10.48550/arxiv.2605.21442 · pith_short_12: P6JXQAXTVGSE · pith_short_16: P6JXQAXTVGSEVBIN · pith_short_8: P6JXQAXT

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/P6JXQAXTVGSEVBINKZIAIBIML7 \
  | 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: 7f937802f3a9a44a850d565004050c5fe2645ab85d7e1d0818cd6d43eca6ff40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "609ea0bcce9767acd564b8e4c792bd31863d78b524ca3b7778b05349c01f2c6e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T17:32:08Z",
    "title_canon_sha256": "a1e92be939b93d93ba368db52bede5fe8e9b4ba143048714667f32f4f16163b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21442",
    "kind": "arxiv",
    "version": 1
  }
}