Pith Number

pith:CE4RVDXT

pith:2022:CE4RVDXT45BQR5EBF2BSTGHPGH

not attested not anchored not stored refs pending

Anatomy-Aware Contrastive Representation Learning for Fetal Ultrasound

Aris T. Papageorghiou, J. Alison Noble, Jianbo Jiao, Lior Drukker, Robail Yasrab, Zeyu Fu

arxiv:2208.10642 v1 · 2022-08-22 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CE4RVDXT45BQR5EBF2BSTGHPGH}

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	2026-07-05T04:50:37.941859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11391a8ef3e74308f4812e832998ef31d15ba994a2386fff2caba9ea794f851a

Aliases

arxiv: 2208.10642 · arxiv_version: 2208.10642v1 · doi: 10.48550/arxiv.2208.10642 · pith_short_12: CE4RVDXT45BQ · pith_short_16: CE4RVDXT45BQR5EB · pith_short_8: CE4RVDXT

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/CE4RVDXT45BQR5EBF2BSTGHPGH \
  | 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: 11391a8ef3e74308f4812e832998ef31d15ba994a2386fff2caba9ea794f851a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba4a0619421c6cb9e1d1b657ddac3ceed083c744ec7ca3690ce6fc2da6229d4",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-08-22T22:49:26Z",
    "title_canon_sha256": "daa3edaead5c46791ceb326fd358e7862ae40e777c90d644832024b17bc1200f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.10642",
    "kind": "arxiv",
    "version": 1
  }
}