Pith Number

pith:OQFY6Z4T

pith:2026:OQFY6Z4TG7CNB2HOFLB2EI2JYR

not attested not anchored not stored refs pending

Tuning-Free Efficient Estimation for Multi-Source Data via Covariance-Aware Shrinkage

Kaizheng Wang, Wenbo Jing, Xi Chen, Yaqi Duan, Yichen Zhang

arxiv:2606.30615 v1 · 2026-06-29 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQFY6Z4TG7CNB2HOFLB2EI2JYR}

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	2026-06-30T02:18:22.732096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

740b8f679337c4d0e8ee2ac3a22349c44e28fb3b8d2e0ed51d06753d6b66f899

Aliases

arxiv: 2606.30615 · arxiv_version: 2606.30615v1 · doi: 10.48550/arxiv.2606.30615 · pith_short_12: OQFY6Z4TG7CN · pith_short_16: OQFY6Z4TG7CNB2HO · pith_short_8: OQFY6Z4T

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/OQFY6Z4TG7CNB2HOFLB2EI2JYR \
  | 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: 740b8f679337c4d0e8ee2ac3a22349c44e28fb3b8d2e0ed51d06753d6b66f899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c96a4da5866fa79b0c610542cc7da51a921b828cb5b2adadbcb717b65515c14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-06-29T17:49:33Z",
    "title_canon_sha256": "692ec3822690c236c3655da1dc0776c26653cd4f76805b35338372440a8f9ea3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30615",
    "kind": "arxiv",
    "version": 1
  }
}