Pith Number

pith:2MMF4KR5

pith:2023:2MMF4KR5BUEYOW6UGOJRZ2OOLR

not attested not anchored not stored refs pending

Smart-Tree: Neural Medial Axis Approximation of Point Clouds for 3D Tree Skeletonization

Harry Dobbs, James Atlas, Oliver Batchelor, Richard Green

arxiv:2303.11560 v2 · 2023-03-21 · 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{2MMF4KR5BUEYOW6UGOJRZ2OOLR}

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	2026-07-05T06:07:21.855657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3185e2a3d0d09875bd433931ce9ce5c4d656c65ad027f8983bfb43d7c48abdb

Aliases

arxiv: 2303.11560 · arxiv_version: 2303.11560v2 · doi: 10.48550/arxiv.2303.11560 · pith_short_12: 2MMF4KR5BUEY · pith_short_16: 2MMF4KR5BUEYOW6U · pith_short_8: 2MMF4KR5

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/2MMF4KR5BUEYOW6UGOJRZ2OOLR \
  | 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: d3185e2a3d0d09875bd433931ce9ce5c4d656c65ad027f8983bfb43d7c48abdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b312614761bfd5f5a5156cb55c049674bf58d508f674f64005084834b9ec2be8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-03-21T03:03:46Z",
    "title_canon_sha256": "31e782b43a99fa81cfd6a6b7b50b05ac7af12700226ed63706ba17266da6a401"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.11560",
    "kind": "arxiv",
    "version": 2
  }
}