Pith Number

pith:PH554IYE

pith:2026:PH554IYEAGNRTM6TMNH77SAYJ6

not attested not anchored not stored refs pending

Memory-Efficient Structured Backpropagation for On-Device LLM Fine-Tuning

Jaeho Lee, Juneyoung Park, Seongwan Kim, Yuri Hong

arxiv:2602.13069 v2 · 2026-02-13 · cs.LG · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PH554IYEAGNRTM6TMNH77SAYJ6}

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	2026-06-01T01:02:34.313957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79fbde2304019b19b3d3634fffc8184f8eebd299fff86111ac6db5e77a624553

Aliases

arxiv: 2602.13069 · arxiv_version: 2602.13069v2 · doi: 10.48550/arxiv.2602.13069 · pith_short_12: PH554IYEAGNR · pith_short_16: PH554IYEAGNRTM6T · pith_short_8: PH554IYE

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/PH554IYEAGNRTM6TMNH77SAYJ6 \
  | 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: 79fbde2304019b19b3d3634fffc8184f8eebd299fff86111ac6db5e77a624553

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cef5b4dc10b40afc15588b8651a8a4654f31062ebeb012c5d3e8006f460e9907",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-13T16:24:33Z",
    "title_canon_sha256": "0a6ab38e8a97bcdee4b1578ae48fab3deddc8961481f344dec6e373202151a23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.13069",
    "kind": "arxiv",
    "version": 2
  }
}