Pith Number

pith:HCRH2Z2B

pith:2017:HCRH2Z2BDQR6AL2XXKSVMKIK2M

not attested not anchored not stored refs pending

An adaptive thresholding approach for automatic optic disk segmentation

Farnoosh Ghadiri, Masoud Shafiee, Robert Bergevin

arxiv:1710.05104 v1 · 2017-10-14 · 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{HCRH2Z2BDQR6AL2XXKSVMKIK2M}

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	2026-05-18T00:32:54.363658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38a27d67411c23e02f57baa556290ad30a214a23b8b0c3297b7e7b2b2139832c

Aliases

arxiv: 1710.05104 · arxiv_version: 1710.05104v1 · doi: 10.48550/arxiv.1710.05104 · pith_short_12: HCRH2Z2BDQR6 · pith_short_16: HCRH2Z2BDQR6AL2X · pith_short_8: HCRH2Z2B

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/HCRH2Z2BDQR6AL2XXKSVMKIK2M \
  | 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: 38a27d67411c23e02f57baa556290ad30a214a23b8b0c3297b7e7b2b2139832c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7afe13e0563bd239efa541b1de9c0ea1578ba8836d92a8b43e43c27d1b0b982a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-10-14T00:04:52Z",
    "title_canon_sha256": "fb1029831b8e09d7bff8d24085955abf475bb3350cfa2bd64fbff9bfb104ba6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05104",
    "kind": "arxiv",
    "version": 1
  }
}