Pith Number

pith:PUJ43B5G

pith:2018:PUJ43B5GGCFSGE2ISM5TKZOH7W

not attested not anchored not stored refs pending

ActiveRemediation: The Search for Lead Pipes in Flint, Michigan

Alex Chojnacki, Arya Farahi, Eric Schwartz, Jacob Abernethy, Jared Webb

arxiv:1806.10692 v2 · 2018-06-10 · cs.LG · cs.CY · stat.AP · 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{PUJ43B5GGCFSGE2ISM5TKZOH7W}

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	2026-05-18T00:07:54.989424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d13cd87a6308b231348933b3565c7fdb1c7f40f97c28c94e76ac03ab5a21c1c

Aliases

arxiv: 1806.10692 · arxiv_version: 1806.10692v2 · doi: 10.48550/arxiv.1806.10692 · pith_short_12: PUJ43B5GGCFS · pith_short_16: PUJ43B5GGCFSGE2I · pith_short_8: PUJ43B5G

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/PUJ43B5GGCFSGE2ISM5TKZOH7W \
  | 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: 7d13cd87a6308b231348933b3565c7fdb1c7f40f97c28c94e76ac03ab5a21c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87fea38ab46da0c85d367b32f2bdd050ad1bf9096af657574952b063067d1340",
    "cross_cats_sorted": [
      "cs.CY",
      "stat.AP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-06-10T13:04:53Z",
    "title_canon_sha256": "67d784aa467fb917b4f605ffba1d564a5ad7c92c7691bc36c86ea8d9c72fa486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10692",
    "kind": "arxiv",
    "version": 2
  }
}