Pith Number

pith:QWQTGLNX

pith:2020:QWQTGLNXQNFAAIWCQPE6KSYXZU

not attested not anchored not stored refs pending

Multi-class segmentation under severe class imbalance: A case study in roof damage assessment

Jean-Baptiste Boin, Jigar Doshi, Nat Roth, Nicolas Borensztein, Pablo Llueca

arxiv:2010.07151 v2 · 2020-10-14 · 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{QWQTGLNXQNFAAIWCQPE6KSYXZU}

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	2026-07-05T01:52:48.235027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85a1332db7834a0022c283c9e54b17cd18cd256fba47a9b79b0ac7a15cb0f364

Aliases

arxiv: 2010.07151 · arxiv_version: 2010.07151v2 · doi: 10.48550/arxiv.2010.07151 · pith_short_12: QWQTGLNXQNFA · pith_short_16: QWQTGLNXQNFAAIWC · pith_short_8: QWQTGLNX

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/QWQTGLNXQNFAAIWCQPE6KSYXZU \
  | 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: 85a1332db7834a0022c283c9e54b17cd18cd256fba47a9b79b0ac7a15cb0f364

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96cb7c12b38b8ac0f2a08d99e45ed3c8973cc8c94821e5349f44940e4e1cca38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-10-14T15:08:54Z",
    "title_canon_sha256": "3adb932a34589ba2557e647d8213aac6917f1033d8f86b18330d42bb1399c481"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.07151",
    "kind": "arxiv",
    "version": 2
  }
}