Pith Number

pith:VPLB2NCK

pith:2018:VPLB2NCKLJ5TYHZ5VJMN6L4IPU

not attested not anchored not stored refs pending

Aerial Imagery for Roof Segmentation: A Large-Scale Dataset towards Automatic Mapping of Buildings

Guangming Wu, Lei Wang, Qi Chen, Steven L. Waslander, Yifan Wu, Zhiling Guo

arxiv:1807.09532 v2 · 2018-07-25 · 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{VPLB2NCKLJ5TYHZ5VJMN6L4IPU}

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	2026-07-05T01:04:44.577789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abd61d344a5a7b3c1f3daa58df2f887d18789a84f1e92bdbfac0b7195e038f99

Aliases

arxiv: 1807.09532 · arxiv_version: 1807.09532v2 · doi: 10.48550/arxiv.1807.09532 · pith_short_12: VPLB2NCKLJ5T · pith_short_16: VPLB2NCKLJ5TYHZ5 · pith_short_8: VPLB2NCK

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/VPLB2NCKLJ5TYHZ5VJMN6L4IPU \
  | 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: abd61d344a5a7b3c1f3daa58df2f887d18789a84f1e92bdbfac0b7195e038f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4359dc7fdd78d1c216e77eb96f9ac54ed6043ddfb97cc705d90c0622c41d9be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-25T11:23:45Z",
    "title_canon_sha256": "c1571ca06080d68048d09974d63918d885a2564a66f18be8b327098144986ad2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09532",
    "kind": "arxiv",
    "version": 2
  }
}