Pith Number

pith:HJHFBYWL

pith:2018:HJHFBYWLEWUR34M6ILXT74H5U4

not attested not anchored not stored refs pending

Mapping Informal Settlements in Developing Countries with Multi-resolution, Multi-spectral Data

Alejandro Coca-Castro, Bradley Gram-Hansen, Faiza Azam, Indhu Varatharajan, Patrick Helber, Piotr Bilinski, Veronika Kopackova

arxiv:1812.00812 v1 · 2018-11-30 · cs.LG · cs.AI · 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{HJHFBYWLEWUR34M6ILXT74H5U4}

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	2026-05-17T23:44:47.830138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a4e50e2cb25a91df19e42ef3ff0fda70e944fca7d0133355380d783a7044343

Aliases

arxiv: 1812.00812 · arxiv_version: 1812.00812v1 · doi: 10.48550/arxiv.1812.00812 · pith_short_12: HJHFBYWLEWUR · pith_short_16: HJHFBYWLEWUR34M6 · pith_short_8: HJHFBYWL

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/HJHFBYWLEWUR34M6ILXT74H5U4 \
  | 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: 3a4e50e2cb25a91df19e42ef3ff0fda70e944fca7d0133355380d783a7044343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed566946cc0c3d93c5a770d0399c1064ddc533e747f213cec57ed38b89ab64e3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-11-30T10:38:37Z",
    "title_canon_sha256": "fe98d236f45220ae18dd0accbb30cfbb450d9bff33265a1c5d0035675ed93520"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.00812",
    "kind": "arxiv",
    "version": 1
  }
}