Pith Number

pith:5CDB6OD3

pith:2026:5CDB6OD33JBPJ4FXEC63AEUE5T

not attested not anchored not stored refs pending

CalTwin: Towards Calibrated, Shift-Robust Medical World Models via Fisher-Information Regularisation

Behraj Khan, Shabir Ahmad, Syed Ahmad Chan Bukhari, Tahir Qasim Syed

arxiv:2607.26752 v1 · 2026-07-29 · 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{5CDB6OD33JBPJ4FXEC63AEUE5T}

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	2026-07-30T01:22:11.381634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

e8861f387bda42f4f0b720bdb01284eccd6dc3654212258efbf795675ba9d834

Aliases

arxiv: 2607.26752 · arxiv_version: 2607.26752v1 · doi: 10.48550/arxiv.2607.26752 · pith_short_12: 5CDB6OD33JBP · pith_short_16: 5CDB6OD33JBPJ4FX · pith_short_8: 5CDB6OD3

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/5CDB6OD33JBPJ4FXEC63AEUE5T \
  | 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: e8861f387bda42f4f0b720bdb01284eccd6dc3654212258efbf795675ba9d834

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5b01a470e99cb34b1865143af2c7d7007e0a6bca2ea9fe2c4bc7d095c755138",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-29T10:47:52Z",
    "title_canon_sha256": "7651f6c692e07df6c50c71a3e5bf5bb493f6ff2c01634caad5c2f4772b9f2046"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26752",
    "kind": "arxiv",
    "version": 1
  }
}