Pith Number

pith:O2ABQGQ3

pith:2022:O2ABQGQ363NLMTT4DDFW24KL4A

not attested not anchored not stored refs pending

A framework for scale-sensitive, spatially explicit accuracy assessment of binary built-up surface layers

Johannes H. Uhl, Stefan Leyk

arxiv:2203.11253 v2 · 2022-03-21 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2ABQGQ363NLMTT4DDFW24KL4A}

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	2026-07-05T04:33:52.456697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7680181a1bf6dab64e7c18cb6d714be0273641773da11c06808fce18f2e41f27

Aliases

arxiv: 2203.11253 · arxiv_version: 2203.11253v2 · doi: 10.48550/arxiv.2203.11253 · pith_short_12: O2ABQGQ363NL · pith_short_16: O2ABQGQ363NLMTT4 · pith_short_8: O2ABQGQ3

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/O2ABQGQ363NLMTT4DDFW24KL4A \
  | 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: 7680181a1bf6dab64e7c18cb6d714be0273641773da11c06808fce18f2e41f27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8346a759b92f4a23803da2937db2b52ed255d8ebefc1c408d66cf996c1e2e7d3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2022-03-21T18:27:13Z",
    "title_canon_sha256": "d26245725213bd524eb7e36696a24f5cd941f72a7b63806179018fdb2bdfb3ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.11253",
    "kind": "arxiv",
    "version": 2
  }
}