Pith Number

pith:IB63TKRZ

pith:2024:IB63TKRZKRMJTKCGYT2PUNONEI

not attested not anchored not stored refs pending

UrFound: Towards Universal Retinal Foundation Models via Knowledge-Guided Masked Modeling

Ching-Yu Cheng, Kai Yu, Rick Siow Mong Goh, Xinxing Xu, Yang Bai, Yang Zhou, Yong Liu, Zhi Da Soh

arxiv:2408.05618 v1 · 2024-08-10 · cs.CV · 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{IB63TKRZKRMJTKCGYT2PUNONEI}

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	2026-07-05T08:54:22.737149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

407db9aa39545899a846c4f4fa35cd2200b8a4d06d5b566dbda4ba846ac0a4f4

Aliases

arxiv: 2408.05618 · arxiv_version: 2408.05618v1 · doi: 10.48550/arxiv.2408.05618 · pith_short_12: IB63TKRZKRMJ · pith_short_16: IB63TKRZKRMJTKCG · pith_short_8: IB63TKRZ

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/IB63TKRZKRMJTKCGYT2PUNONEI \
  | 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: 407db9aa39545899a846c4f4fa35cd2200b8a4d06d5b566dbda4ba846ac0a4f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee354250ce4a3ab7d243c7706ad489edf308a1413250b3f6bd6c490fd078b2c9",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2024-08-10T19:31:29Z",
    "title_canon_sha256": "d927bfd5e09a989352196fdd5aaa3179983245d9c186ac268ca0ccfff3abaf77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.05618",
    "kind": "arxiv",
    "version": 1
  }
}