Pith Number

pith:NNTBXMPQ

pith:2026:NNTBXMPQ3TFNQ4G4TJOM7DUEW2

not attested not anchored not stored refs pending

Can we trust our models? Epistemic calibration in second-order classification

Arthur Hoarau

arxiv:2606.10777 v1 · 2026-06-09 · 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{NNTBXMPQ3TFNQ4G4TJOM7DUEW2}

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	2026-06-10T01:10:40.085485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b661bb1f0dccad870dc9a5ccf8e84b690a787ecd587eac8da1229c22e8a71fe

Aliases

arxiv: 2606.10777 · arxiv_version: 2606.10777v1 · doi: 10.48550/arxiv.2606.10777 · pith_short_12: NNTBXMPQ3TFN · pith_short_16: NNTBXMPQ3TFNQ4G4 · pith_short_8: NNTBXMPQ

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/NNTBXMPQ3TFNQ4G4TJOM7DUEW2 \
  | 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: 6b661bb1f0dccad870dc9a5ccf8e84b690a787ecd587eac8da1229c22e8a71fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "800c9ed2cfe76ec991c8598815acf123a4e455a20a910ff767b2a430278f2776",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-09T12:31:32Z",
    "title_canon_sha256": "0383343cfb2a49af581b2261c2a0165a2b972f7d7a203069eb28bc6f9ec02b7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.10777",
    "kind": "arxiv",
    "version": 1
  }
}