Pith Number

pith:C26K56CQ

pith:2026:C26K56CQ5HD434I5BZRK3TRKHP

not attested not anchored not stored refs pending

Topological Signatures of Context-Level Reliability in TabPFN

James Hu, Mahdi Ghelichi

arxiv:2607.17962 v1 · 2026-07-20 · cs.LG · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C26K56CQ5HD434I5BZRK3TRKHP}

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	2026-07-21T02:22:08.672782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16bcaef850e9c7cdf11d0e62adce2a3bd8c1871562b78148ebc193a230ef2662

Aliases

arxiv: 2607.17962 · arxiv_version: 2607.17962v1 · doi: 10.48550/arxiv.2607.17962 · pith_short_12: C26K56CQ5HD4 · pith_short_16: C26K56CQ5HD434I5 · pith_short_8: C26K56CQ

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/C26K56CQ5HD434I5BZRK3TRKHP \
  | 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: 16bcaef850e9c7cdf11d0e62adce2a3bd8c1871562b78148ebc193a230ef2662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4a66d9fa524338a3b1f112f2bef9cbd37b2f3cdafec5ffbe9ed30bf5f693647",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-20T14:04:01Z",
    "title_canon_sha256": "23c906cbd443d25237cf708051a48e97d90955aaa47a8e6827d7ffbbb2aba0a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17962",
    "kind": "arxiv",
    "version": 1
  }
}