Pith Number

pith:MQF4IHNJ

pith:2017:MQF4IHNJU5UNA2LDC7Z7FNHMY4

not attested not anchored not stored refs pending

A multi-task convolutional neural network for mega-city analysis using very high resolution satellite imagery and geospatial data

Bo Du, Fan Zhang, Liangpei Zhang

arxiv:1702.07985 v1 · 2017-02-26 · 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{MQF4IHNJU5UNA2LDC7Z7FNHMY4}

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	2026-05-18T00:49:56.466340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

640bc41da9a768d0696317f3f2b4ecc71e04cefdf0f6c899c3201997dae7a973

Aliases

arxiv: 1702.07985 · arxiv_version: 1702.07985v1 · doi: 10.48550/arxiv.1702.07985 · pith_short_12: MQF4IHNJU5UN · pith_short_16: MQF4IHNJU5UNA2LD · pith_short_8: MQF4IHNJ

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/MQF4IHNJU5UNA2LDC7Z7FNHMY4 \
  | 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: 640bc41da9a768d0696317f3f2b4ecc71e04cefdf0f6c899c3201997dae7a973

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7daaf65016a96a8429c69d9b9dc27a9dfc29f23fd2631d448deaa36b546b14df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-02-26T04:23:36Z",
    "title_canon_sha256": "80fb3b432f0f317cd3c043b684ac03637f9ac92846ee885aaf947b4654529f9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07985",
    "kind": "arxiv",
    "version": 1
  }
}