Pith Number

pith:M5XMO3SK

pith:2025:M5XMO3SKW5DCK4I5PW2F6KNMVM

not attested not anchored not stored refs pending

Compression versus Accuracy: A Hierarchy of Lifted Models

Jan Speller, Malte Luttermann, Marcel Gehrke, Tanya Braun

arxiv:2505.22288 v2 · 2025-05-28 · 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{M5XMO3SKW5DCK4I5PW2F6KNMVM}

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	2026-07-05T12:01:45.565859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

676ec76e4ab74625711d7db45f29acab223942ac004b4134fb8b9c2834931420

Aliases

arxiv: 2505.22288 · arxiv_version: 2505.22288v2 · doi: 10.48550/arxiv.2505.22288 · pith_short_12: M5XMO3SKW5DC · pith_short_16: M5XMO3SKW5DCK4I5 · pith_short_8: M5XMO3SK

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/M5XMO3SKW5DCK4I5PW2F6KNMVM \
  | 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: 676ec76e4ab74625711d7db45f29acab223942ac004b4134fb8b9c2834931420

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0261bdcd4d9583f108116f3eaa2182b2699612d4fb5f7603e84805ba10658915",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-05-28T12:27:32Z",
    "title_canon_sha256": "be2d29f87acc0e8988a54c7d439ba534abd3ae169e8da0a7ae0fc6e3f5c8c1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22288",
    "kind": "arxiv",
    "version": 2
  }
}