Pith Number

pith:UPQFUAXE

pith:2021:UPQFUAXEQ3MHBEBGNCP2WHTD2F

not attested not anchored not stored refs pending

Quantitative optical coherence tomography reveals rod photoreceptor degeneration in early diabetic retinopathy

David Le, Jennifer I. Lim, Taeyoon Son, Xincheng Yao

arxiv:2112.07780 v1 · 2021-12-14 · q-bio.QM · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPQFUAXEQ3MHBEBGNCP2WHTD2F}

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	2026-07-05T03:41:06.416086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e05a02e486d8709026689fab1e63d17561a77dde779fe09c0675786447cd61

Aliases

arxiv: 2112.07780 · arxiv_version: 2112.07780v1 · doi: 10.48550/arxiv.2112.07780 · pith_short_12: UPQFUAXEQ3MH · pith_short_16: UPQFUAXEQ3MHBEBG · pith_short_8: UPQFUAXE

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/UPQFUAXEQ3MHBEBGNCP2WHTD2F \
  | 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: a3e05a02e486d8709026689fab1e63d17561a77dde779fe09c0675786447cd61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72e44a8714fd6346049406c01a25b399743d49bdd5f613143ee2ec83d21be63",
    "cross_cats_sorted": [
      "q-bio.TO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2021-12-14T23:03:00Z",
    "title_canon_sha256": "0b2c1fb157913359cbc3ea6ea1e374cf376863c0d3e81fcf69a453f4e8548713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07780",
    "kind": "arxiv",
    "version": 1
  }
}