Pith Number

pith:UOO4OB76

pith:2019:UOO4OB76RTOYNDATC3UCP247DI

not attested not anchored not stored refs pending

Uncovering Dominant Social Class in Neighborhoods through Building Footprints: A Case Study of Residential Zones in Massachusetts using Computer Vision

Qianhui Liang, Zhoutong Wang

arxiv:1906.05352 v1 · 2019-06-12 · cs.CV · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UOO4OB76RTOYNDATC3UCP247DI}

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	2026-05-17T23:43:25.506611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a39dc707fe8cdd868c1316e827eb9f1a091422d3635da39400adf4ac023da0eb

Aliases

arxiv: 1906.05352 · arxiv_version: 1906.05352v1 · doi: 10.48550/arxiv.1906.05352 · pith_short_12: UOO4OB76RTOY · pith_short_16: UOO4OB76RTOYNDAT · pith_short_8: UOO4OB76

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/UOO4OB76RTOYNDATC3UCP247DI \
  | 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: a39dc707fe8cdd868c1316e827eb9f1a091422d3635da39400adf4ac023da0eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4784c16f78828fa66a30216484db3f4c47120e6aad4bd7b6feb9cd91ed945ac0",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-06-12T19:47:09Z",
    "title_canon_sha256": "c8573fba603a655b0bb57796b41c6dc0d8f3667fdd4db4dd43f29a1dda0eb514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.05352",
    "kind": "arxiv",
    "version": 1
  }
}