Pith Number

pith:RYPF4ZQK

pith:2021:RYPF4ZQKVG52BMNZ22LRZWADKT

not attested not anchored not stored refs pending

Two Shifts for Crop Mapping: Leveraging Aggregate Crop Statistics to Improve Satellite-based Maps in New Regions

Dan M. Kluger, David B. Lobell, Sherrie Wang

arxiv:2109.01246 v1 · 2021-09-02 · stat.AP · cs.CV · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RYPF4ZQKVG52BMNZ22LRZWADKT}

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	2026-07-05T03:11:33.304173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e1e5e660aa9bba0b1b9d6971cd80354e0d426252a30a8ad47036008e970d7e1

Aliases

arxiv: 2109.01246 · arxiv_version: 2109.01246v1 · doi: 10.48550/arxiv.2109.01246 · pith_short_12: RYPF4ZQKVG52 · pith_short_16: RYPF4ZQKVG52BMNZ · pith_short_8: RYPF4ZQK

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/RYPF4ZQKVG52BMNZ22LRZWADKT \
  | 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: 8e1e5e660aa9bba0b1b9d6971cd80354e0d426252a30a8ad47036008e970d7e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b356b55eefe39b05044028cccfd30dc128f004f82bcb838426037d02b5df0e99",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2021-09-02T23:33:03Z",
    "title_canon_sha256": "bfab14a0ee10d2b6e457709c8e0be83601afae2d5523f9ad16b12f60a28183a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.01246",
    "kind": "arxiv",
    "version": 1
  }
}