Pith Number

pith:NTH2S3DN

pith:2021:NTH2S3DNCMVK33OTW5MTU6WCGQ

not attested not anchored not stored refs pending

Open government geospatial data on buildings for planning sustainable and resilient cities

Felix Creutzig, Filip Biljecki, Lawrence Zheng Xiong Chew, Nikola Milojevic-Dupont

arxiv:2107.04023 v1 · 2021-06-28 · 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{NTH2S3DNCMVK33OTW5MTU6WCGQ}

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.

Cited by

1 paper in Pith

AuthentiCity: A Multi-Source Provenance-Aware Knowledge Graph and Benchmark for 3D City Models

Receipt and verification

First computed	2026-07-05T02:56:21.796390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ccfa96c6d132aadedd3b7593a7ac234218a0ffd62a6d35797eee8e764c1fc5e

Aliases

arxiv: 2107.04023 · arxiv_version: 2107.04023v1 · doi: 10.48550/arxiv.2107.04023 · pith_short_12: NTH2S3DNCMVK · pith_short_16: NTH2S3DNCMVK33OT · pith_short_8: NTH2S3DN

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/NTH2S3DNCMVK33OTW5MTU6WCGQ \
  | 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: 6ccfa96c6d132aadedd3b7593a7ac234218a0ffd62a6d35797eee8e764c1fc5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a848803aae6f102fed86d116b5b9c021e04cc914530ae6ca0fb671f7837f4e92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-06-28T17:13:04Z",
    "title_canon_sha256": "b8714ca8690f3b726a1b117dae9589fe556d67c4a3597c1822b0de3d476b4d6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.04023",
    "kind": "arxiv",
    "version": 1
  }
}