Pith Number

pith:AHG7YPPT

pith:2021:AHG7YPPTHYURPI4GZK2PA466IS

not attested not anchored not stored refs pending

Not Color Blind: AI Predicts Racial Identity from Black and White Retinal Vessel Segmentations

Aaron S. Coyner, James M. Brown, Jayashree Kalpathy-Cramer, J. Peter Campbell, Michael F. Chiang, Praveer Singh, R.V. Paul Chan, Susan Ostmo

arxiv:2109.13845 v1 · 2021-09-28 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AHG7YPPTHYURPI4GZK2PA466IS}

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	2026-07-05T03:18:06.925263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01cdfc3df33e2917a386cab4f073de44b71d05993a9acdc38644a455289eef1e

Aliases

arxiv: 2109.13845 · arxiv_version: 2109.13845v1 · doi: 10.48550/arxiv.2109.13845 · pith_short_12: AHG7YPPTHYUR · pith_short_16: AHG7YPPTHYURPI4G · pith_short_8: AHG7YPPT

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/AHG7YPPTHYURPI4GZK2PA466IS \
  | 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: 01cdfc3df33e2917a386cab4f073de44b71d05993a9acdc38644a455289eef1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "250bf24e0807a13e92e4685bd88be95fbdd6029defd8d0726387caff5a0ae3c0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-28T16:21:37Z",
    "title_canon_sha256": "bd8fcc91ac3d19fa8a07cac6c083f26bc906bbc05ca58cef4b2014b56d246172"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13845",
    "kind": "arxiv",
    "version": 1
  }
}