Pith Number

pith:X7MGTIZQ

pith:2022:X7MGTIZQWX7VRXKBDYZWL3WPSP

not attested not anchored not stored refs pending

Extracting Built Environment Features for Planning Research with Computer Vision: A Review and Discussion of State-of-the-Art Approaches

Hao Sheng, Meiqing Li

arxiv:2201.12693 v2 · 2022-01-30 · 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{X7MGTIZQWX7VRXKBDYZWL3WPSP}

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	2026-07-05T04:06:49.067797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfd869a330b5ff58dd411e3365eecf93e2637a355667fbceaa29bcbfdcca84aa

Aliases

arxiv: 2201.12693 · arxiv_version: 2201.12693v2 · doi: 10.48550/arxiv.2201.12693 · pith_short_12: X7MGTIZQWX7V · pith_short_16: X7MGTIZQWX7VRXKB · pith_short_8: X7MGTIZQ

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/X7MGTIZQWX7VRXKBDYZWL3WPSP \
  | 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: bfd869a330b5ff58dd411e3365eecf93e2637a355667fbceaa29bcbfdcca84aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4d1cfdf35863a82ed94233d1d936569befad0a1698b611aacd164bda550f14a",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-01-30T01:02:18Z",
    "title_canon_sha256": "cfbf262b5810a841f97a7adca33849146a72e3764988d0932cd360acab1f3e0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.12693",
    "kind": "arxiv",
    "version": 2
  }
}