Pith Number

pith:EGM6MDHF

pith:2025:EGM6MDHF5POZV2DA2RUJQPOIAD

not attested not anchored not stored refs pending

Position: The Most Expensive Part of an LLM should be its Training Data

Colin Raffel, Nikhil Kandpal

arxiv:2504.12427 v1 · 2025-04-16 · cs.CL · cs.AI · cs.CY · 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{EGM6MDHF5POZV2DA2RUJQPOIAD}

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

3 papers in Pith

FlexServe: A Fast and Secure LLM Serving System for Mobile Devices with Flexible Resource Isolation

On the Fragility of Data Attribution When Learning Is Distributed

FlexServe: A Fast and Secure LLM Serving System for Mobile Devices with Flexible Resource Isolation

Receipt and verification

First computed	2026-07-05T10:50:16.289055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2199e60ce5ebdd9ae860d468983dc800f361fc722be6e6346ce2ecb8e4f9afdf

Aliases

arxiv: 2504.12427 · arxiv_version: 2504.12427v1 · doi: 10.48550/arxiv.2504.12427 · pith_short_12: EGM6MDHF5POZ · pith_short_16: EGM6MDHF5POZV2DA · pith_short_8: EGM6MDHF

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/EGM6MDHF5POZV2DA2RUJQPOIAD \
  | 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: 2199e60ce5ebdd9ae860d468983dc800f361fc722be6e6346ce2ecb8e4f9afdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd33fe10061cded6400f53a8132ba3146ce933b778433ec82315e07f9d0dc33c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-16T18:56:14Z",
    "title_canon_sha256": "befa041a6388ee2c1a5205bed3a00ecf7652846ce915537cc53216188d94ae96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12427",
    "kind": "arxiv",
    "version": 1
  }
}