Pith Number

pith:7XGNQDN5

pith:2018:7XGNQDN5HQ2L22IJBFD36YWTFO

not attested not anchored not stored refs pending

Simplifying Urban Data Fusion with BigSUR

Niloy J. Mitra, Tom Kelly

arxiv:1807.00687 v1 · 2018-07-02 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XGNQDN5HQ2L22IJBFD36YWTFO}

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	2026-05-18T00:11:51.791217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdccd80dbd3c34bd69090947bf62d32b8e081b13871c92b20dc7ed634c54aa97

Aliases

arxiv: 1807.00687 · arxiv_version: 1807.00687v1 · doi: 10.48550/arxiv.1807.00687 · pith_short_12: 7XGNQDN5HQ2L · pith_short_16: 7XGNQDN5HQ2L22IJ · pith_short_8: 7XGNQDN5

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/7XGNQDN5HQ2L22IJBFD36YWTFO \
  | 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: fdccd80dbd3c34bd69090947bf62d32b8e081b13871c92b20dc7ed634c54aa97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6896e210578ffcac36f2d9317b28c995e36106c4cb49107286e54cafae6072b6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2018-07-02T14:14:57Z",
    "title_canon_sha256": "847b87a52e013ea370da0ff48f507dd26ed6fd9b318ea53c34fc63151d169905"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00687",
    "kind": "arxiv",
    "version": 1
  }
}