Pith Number

pith:CL7JW2XG

pith:2021:CL7JW2XGMGNKWIJK45UETOWERZ

not attested not anchored not stored refs pending

Vessel-CAPTCHA: an efficient learning framework for vessel annotation and segmentation

Ferran Prados, Francesco Galati, Giuseppe Di Giacomo, Karim Lekadir, Marco Lorenzi, Maria A. Zuluaga, Prateek Mathur, Rosa Cortese, Vien Ngoc Dang, Viola Marconetto

arxiv:2101.09321 v4 · 2021-01-22 · 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{CL7JW2XGMGNKWIJK45UETOWERZ}

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	2026-07-05T03:28:36.164059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12fe9b6ae6619aab212ae76849bac48e42671ef8634fd2163f965156911960a6

Aliases

arxiv: 2101.09321 · arxiv_version: 2101.09321v4 · doi: 10.48550/arxiv.2101.09321 · pith_short_12: CL7JW2XGMGNK · pith_short_16: CL7JW2XGMGNKWIJK · pith_short_8: CL7JW2XG

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/CL7JW2XGMGNKWIJK45UETOWERZ \
  | 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: 12fe9b6ae6619aab212ae76849bac48e42671ef8634fd2163f965156911960a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f534f1f6a147f2637fc8a1679567bc1ac6f04ed8b23a09c0f80e7ef0241f3383",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-01-22T20:29:23Z",
    "title_canon_sha256": "1b558e84ce287aa1778226d90e44b630282f290c5ff7cff657186d3f03a9c2df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.09321",
    "kind": "arxiv",
    "version": 4
  }
}