Pith Number

pith:5VQK6MXI

pith:2018:5VQK6MXIT6YQEAUJ3DMZKO26DC

not attested not anchored not stored refs pending

Semantic Segmentation for Urban Planning Maps based on U-Net

Guangming Wu, Hiroaki Shengoku, Qi Chen, Ryosuke Shibasaki, Wei Yuan, Xiaodan Shi, Xiaowei Shao, Yongwei Xu, Zhiling Guo

arxiv:1809.10862 v2 · 2018-09-28 · cs.LG · cs.CV · 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{5VQK6MXIT6YQEAUJ3DMZKO26DC}

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	2026-05-18T00:04:29.056352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed60af32e89fb1020289d8d9953b5e1885840ab447be9e22a5e4407cc3933ddf

Aliases

arxiv: 1809.10862 · arxiv_version: 1809.10862v2 · doi: 10.48550/arxiv.1809.10862 · pith_short_12: 5VQK6MXIT6YQ · pith_short_16: 5VQK6MXIT6YQEAUJ · pith_short_8: 5VQK6MXI

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/5VQK6MXIT6YQEAUJ3DMZKO26DC \
  | 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: ed60af32e89fb1020289d8d9953b5e1885840ab447be9e22a5e4407cc3933ddf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "721a021aa508d86ebf1b296a8bf228934e319ac943865085722cbc777b5bcc66",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-09-28T05:32:45Z",
    "title_canon_sha256": "ab271489d1b78827296e5852f6d0e7568ca3cb90fa000cfffd5477308f7c14a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10862",
    "kind": "arxiv",
    "version": 2
  }
}