Pith Number

pith:GR22Q4VW

pith:2026:GR22Q4VW4XW6YS3JQ3UOB5WIY5

not attested not anchored not stored refs pending

A Sonar-Visual Dataset for Cross-Modal Underwater Robot Perception

Martin Ludvigsen, Per Gunnar Auran, Peter Halland Haro, Phil Tinn, Weitung Chen

arxiv:2606.01398 v1 · 2026-05-31 · cs.RO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GR22Q4VW4XW6YS3JQ3UOB5WIY5}

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	2026-06-02T02:04:32.319863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3475a872b6e5edec4b6986e8e0f6c8c77e97370ba1315d5f792f8b30384e09d1

Aliases

arxiv: 2606.01398 · arxiv_version: 2606.01398v1 · doi: 10.48550/arxiv.2606.01398 · pith_short_12: GR22Q4VW4XW6 · pith_short_16: GR22Q4VW4XW6YS3J · pith_short_8: GR22Q4VW

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/GR22Q4VW4XW6YS3JQ3UOB5WIY5 \
  | 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: 3475a872b6e5edec4b6986e8e0f6c8c77e97370ba1315d5f792f8b30384e09d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45faa64f7c69c4d62e84dac70c6878517712e3cb15aeaf1f87947c9d8d3b890b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-05-31T18:43:46Z",
    "title_canon_sha256": "a04e7fc2334431a9d84cf98655f40ff7e3629724bbceb43369b9609e33e9f878"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01398",
    "kind": "arxiv",
    "version": 1
  }
}