Pith Number

pith:SWIQW52C

pith:2019:SWIQW52CDBDWR55RRPKKVCP7BH

not attested not anchored not stored refs pending

Unsupervised machine learning to analyse city logistics through Twitter

Fran\c{c}ois Combes (IFSTTAR/AME/SPLOTT), Gaudron Arthur (CAOR), Simon Tamayo (CAOR)

arxiv:1906.07529 v1 · 2019-06-18 · cs.LG · cs.CY · cs.SI · 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{SWIQW52CDBDWR55RRPKKVCP7BH}

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	2026-05-17T23:43:07.616131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95910b7742184768f7b18bd4aa89ff09eb14b2e4f371405c048f6530f0d1f69d

Aliases

arxiv: 1906.07529 · arxiv_version: 1906.07529v1 · doi: 10.48550/arxiv.1906.07529 · pith_short_12: SWIQW52CDBDW · pith_short_16: SWIQW52CDBDWR55R · pith_short_8: SWIQW52C

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/SWIQW52CDBDWR55RRPKKVCP7BH \
  | 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: 95910b7742184768f7b18bd4aa89ff09eb14b2e4f371405c048f6530f0d1f69d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db0b37b3a626737cfd5a302fcec1267e716798e533e8371dfe32c5f08eb1e185",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-18T12:34:13Z",
    "title_canon_sha256": "6f2850e2c562bf34aec81caed18c820f760a9582fa3acb67c29d9028045295b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07529",
    "kind": "arxiv",
    "version": 1
  }
}