Pith Number

pith:2OTZBFVZ

pith:2025:2OTZBFVZ7MZT72R7CSYXECGZGK

not attested not anchored not stored refs pending

An ocean front detection and tracking algorithm

Chengqing Zhang, Feng Zhou, Muping Zhou, Qicheng Meng, Tianhao Zhao, Yishuo Wang, Zhijun Hu

arxiv:2502.15250 v4 · 2025-02-21 · 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{2OTZBFVZ7MZT72R7CSYXECGZGK}

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	2026-07-05T11:02:42.076382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a79096b9fb333fea3f14b17208d932802959be984252c99c5973630c8e2b2c

Aliases

arxiv: 2502.15250 · arxiv_version: 2502.15250v4 · doi: 10.48550/arxiv.2502.15250 · pith_short_12: 2OTZBFVZ7MZT · pith_short_16: 2OTZBFVZ7MZT72R7 · pith_short_8: 2OTZBFVZ

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/2OTZBFVZ7MZT72R7CSYXECGZGK \
  | 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: d3a79096b9fb333fea3f14b17208d932802959be984252c99c5973630c8e2b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73f91236a84da53da26c0cc0b38dab390927b85f927b05d797788aa9e60391f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-02-21T07:00:09Z",
    "title_canon_sha256": "6ead4f72e3fd4113f9354882cb8a3f93b001fe27273913aca4a477d7d062f618"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.15250",
    "kind": "arxiv",
    "version": 4
  }
}