Pith Number

pith:4V2BTG6G

pith:2026:4V2BTG6G6P7VYCEJCWS4FFYAPC

not attested not anchored not stored refs pending

Wat3R: Underwater 3D Geometry Learning without Annotations

Dingkang Liang, Hongkai Lin, Jiangwei Ren, Wei Xu, Xiang Bai, Xingyu Jiang, Zijie Song

arxiv:2607.08772 v1 · 2026-07-09 · 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{4V2BTG6G6P7VYCEJCWS4FFYAPC}

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	2026-07-10T01:19:59.898196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e574199bc6f3ff5c088915a5c2970078ae2dc15cf6c42fe87b59d0eb806e99e9

Aliases

arxiv: 2607.08772 · arxiv_version: 2607.08772v1 · doi: 10.48550/arxiv.2607.08772 · pith_short_12: 4V2BTG6G6P7V · pith_short_16: 4V2BTG6G6P7VYCEJ · pith_short_8: 4V2BTG6G

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/4V2BTG6G6P7VYCEJCWS4FFYAPC \
  | 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: e574199bc6f3ff5c088915a5c2970078ae2dc15cf6c42fe87b59d0eb806e99e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc0e162d0bb0069bdcb19f45da8e86cb6fbe6fa4548c829bca8116432b5efd9a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-09T17:59:58Z",
    "title_canon_sha256": "31ff66affdd65e160f12ca06465d68fc551b1c990ad2afcec73212dabfba0396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08772",
    "kind": "arxiv",
    "version": 1
  }
}