Pith Number

pith:QJ5TON3Q

pith:2025:QJ5TON3Q4KJ5ZG433PZB247RWE

not attested not anchored not stored refs pending

Anatomy of a Machine Learning Ecosystem: 2 Million Models on Hugging Face

Benjamin Laufer, Hamidah Oderinwale, Jon Kleinberg

arxiv:2508.06811 v1 · 2025-08-09 · cs.SI · 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{QJ5TON3Q4KJ5ZG433PZB247RWE}

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

7 papers in Pith

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Human-aligned AI Model Cards with Weighted Hierarchy Architecture

Efficient Evaluation of LLM Performance with Statistical Guarantees

AdaQE-CG: Adaptive Query Expansion for Web-Scale Generative AI Model and Data Card Generation

Receipt and verification

First computed	2026-07-05T11:51:35.849495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

827b373770e293dc9b9bdbf21d73f1b101d7e7fd0fa2055d578cce0346d81588

Aliases

arxiv: 2508.06811 · arxiv_version: 2508.06811v1 · doi: 10.48550/arxiv.2508.06811 · pith_short_12: QJ5TON3Q4KJ5 · pith_short_16: QJ5TON3Q4KJ5ZG43 · pith_short_8: QJ5TON3Q

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/QJ5TON3Q4KJ5ZG433PZB247RWE \
  | 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: 827b373770e293dc9b9bdbf21d73f1b101d7e7fd0fa2055d578cce0346d81588

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "865ad12283d6eccc6382e7b7c77f6c9c490874448fc8d58a61b5044887a370e5",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2025-08-09T04:08:49Z",
    "title_canon_sha256": "36a050ec75af201ce7079502a599aebc74eb93cd12a026a114ffbd21a0c27eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.06811",
    "kind": "arxiv",
    "version": 1
  }
}