Pith Number

pith:Y7PEQKMH

pith:2026:Y7PEQKMHKLOCTMP33G6GWIUHBI

not attested not anchored not stored refs pending

Mechanistic Data Attribution: Tracing the Training Origins of Interpretable LLM Units

Jianhui Chen, Liangming Pan, Yuzhang Luo

arxiv:2601.21996 v2 · 2026-01-29 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7PEQKMHKLOCTMP33G6GWIUHBI}

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	2026-06-09T01:05:13.442071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7de48298752dc29b1fbd9bc6b22870a2241731ff3b1747595d16029d522d007

Aliases

arxiv: 2601.21996 · arxiv_version: 2601.21996v2 · doi: 10.48550/arxiv.2601.21996 · pith_short_12: Y7PEQKMHKLOC · pith_short_16: Y7PEQKMHKLOCTMP3 · pith_short_8: Y7PEQKMH

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/Y7PEQKMHKLOCTMP33G6GWIUHBI \
  | 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: c7de48298752dc29b1fbd9bc6b22870a2241731ff3b1747595d16029d522d007

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5083f84523e83898d81be11d187eeeea0a18d59f97c94b3094ea835812021a2c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-01-29T17:06:54Z",
    "title_canon_sha256": "6cd57045873082b291747d2fee2c1e62415bcb4957e503ed982cbb0ef2819a2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.21996",
    "kind": "arxiv",
    "version": 2
  }
}