Pith Number

pith:3OUDS3IK

pith:2025:3OUDS3IKTKHH6X6TX4P3XNAZ5H

not attested not anchored not stored refs pending

Dargana: fine-tuning EarthPT for dynamic tree canopy mapping from space

Freddie Kalaitzis, James Banister, James E. Geach, Luke Fleming, Michael J. Smith, Ryan J. Roberts

arxiv:2504.17321 v1 · 2025-04-24 · physics.geo-ph · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3OUDS3IKTKHH6X6TX4P3XNAZ5H}

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	2026-07-05T10:53:26.628020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dba8396d0a9a8e7f5fd3bf1fbbb419e9d4b5914694e287e7b8497e3886dd8135

Aliases

arxiv: 2504.17321 · arxiv_version: 2504.17321v1 · doi: 10.48550/arxiv.2504.17321 · pith_short_12: 3OUDS3IKTKHH · pith_short_16: 3OUDS3IKTKHH6X6T · pith_short_8: 3OUDS3IK

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/3OUDS3IKTKHH6X6TX4P3XNAZ5H \
  | 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: dba8396d0a9a8e7f5fd3bf1fbbb419e9d4b5914694e287e7b8497e3886dd8135

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7ff6dc780fc015cac98c76fe40fd89ea407507ca0515e020596523f5b0da3c1",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2025-04-24T07:23:27Z",
    "title_canon_sha256": "0c4f8b11df2a60836d553b2964bfaeaced1e637dd46b83e0173e44147568c24d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17321",
    "kind": "arxiv",
    "version": 1
  }
}