Pith Number

pith:SA4B3NWC

pith:2016:SA4B3NWCGTBZCTXXFEVPQSMDXN

not attested not anchored not stored refs pending

Superimposition of eye fundus images for longitudinal analysis from large public health databases

Andrew Crowder (DESW), David Owens, Gavin Bhakta (DESW), Guillaume Noyel (IPRI), IPRI), Peter Boyle (SIGPH@iPRI, Rebecca Thomas

arxiv:1607.01971 v3 · 2016-07-07 · 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{SA4B3NWCGTBZCTXXFEVPQSMDXN}

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	2026-05-17T23:59:54.078299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90381db6c234c3914ef7292af84983bb7a1af7cf87bdbcd91a00ab2071a39466

Aliases

arxiv: 1607.01971 · arxiv_version: 1607.01971v3 · doi: 10.48550/arxiv.1607.01971 · pith_short_12: SA4B3NWCGTBZ · pith_short_16: SA4B3NWCGTBZCTXX · pith_short_8: SA4B3NWC

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/SA4B3NWCGTBZCTXXFEVPQSMDXN \
  | 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: 90381db6c234c3914ef7292af84983bb7a1af7cf87bdbcd91a00ab2071a39466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0af4d61edcccac4cf8529c90a6b1bffcc1f0d0e5b978122318b223f42c62ab51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-07-07T11:43:24Z",
    "title_canon_sha256": "4b5a306969ad5ef7f81e26a6a7134943d50a460330a0c0b4b8faa8840756b258"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01971",
    "kind": "arxiv",
    "version": 3
  }
}