Pith Number

pith:4NK4QFXO

pith:2020:4NK4QFXOV5T36XZ7QPQOEGSRFD

not attested not anchored not stored refs pending

OCTA-500: A Retinal Dataset for Optical Coherence Tomography Angiography Study

Jiadong Yang, Keren Xie, Kun Huang, Mingchao Li, Qiang Chen, Qinghuai Liu, Qiuzhuo Xu, Songtao Yuan, Yuhan Zhang, Zexuan Ji

arxiv:2012.07261 v3 · 2020-12-14 · eess.IV · 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{4NK4QFXOV5T36XZ7QPQOEGSRFD}

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	2026-07-05T05:28:04.221382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e355c816eeaf67bf5f3f83e0e21a5128ee0a3ed66554030628acafc5cd2d1ecc

Aliases

arxiv: 2012.07261 · arxiv_version: 2012.07261v3 · doi: 10.48550/arxiv.2012.07261 · pith_short_12: 4NK4QFXOV5T3 · pith_short_16: 4NK4QFXOV5T36XZ7 · pith_short_8: 4NK4QFXO

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/4NK4QFXOV5T36XZ7QPQOEGSRFD \
  | 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: e355c816eeaf67bf5f3f83e0e21a5128ee0a3ed66554030628acafc5cd2d1ecc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d58ec3285777d508ae1e49b7f1731221e529e8892dd1a98fe508b357c25f7f4",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-12-14T05:20:29Z",
    "title_canon_sha256": "bf6f53d64675013ce16574de6ef6d8983b3c8f11603d26b47cc097d16f76dc67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.07261",
    "kind": "arxiv",
    "version": 3
  }
}