Pith Number

pith:FR6EUM7D

pith:2026:FR6EUM7D7DBXPB7N2ESSIBDECK

not attested not anchored not stored refs pending

Watershed vs. Region Growing for Individual Tree Segmentation from Airborne LiDAR: An Urban Case Study in Bologna

Aldo Canfora, Matteo Falcioni, Mirko Degli Esposti, Tommaso Rondini

arxiv:2607.27018 v1 · 2026-07-29 · physics.app-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FR6EUM7D7DBXPB7N2ESSIBDECK}

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	2026-07-30T01:23:21.325273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

2c7c4a33e3f8c37787edd12524046412b99cf436b6af0cadab77bc189339133d

Aliases

arxiv: 2607.27018 · arxiv_version: 2607.27018v1 · doi: 10.48550/arxiv.2607.27018 · pith_short_12: FR6EUM7D7DBX · pith_short_16: FR6EUM7D7DBXPB7N · pith_short_8: FR6EUM7D

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/FR6EUM7D7DBXPB7N2ESSIBDECK \
  | 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: 2c7c4a33e3f8c37787edd12524046412b99cf436b6af0cadab77bc189339133d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a1177bcf274213dc8118ec2e7e029553e84f6659b9ab85681c98446e3f990bb",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2026-07-29T15:15:45Z",
    "title_canon_sha256": "d7c13392f991997d1a20570e714e31c61e33b046c6eb68af9e56a4e8c3d551c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27018",
    "kind": "arxiv",
    "version": 1
  }
}