Pith Number

pith:WG5XIYN4

pith:2015:WG5XIYN4DEZ4R2BXAE3VOG2S4A

not attested not anchored not stored refs pending

Predicting Regional Economic Indices using Big Data of Individual Bank Card Transactions

Carlo Ratti, Emanuele Massaro, Iva Bojic, Juan Murillo Arias, Stanislav Sobolevsky

arxiv:1506.00036 v2 · 2015-05-29 · cs.CY · cs.SI · 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{WG5XIYN4DEZ4R2BXAE3VOG2S4A}

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	2026-05-18T01:37:01.422997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1bb7461bc1933c8e8370137571b52e0146a18fbe722becf84278c0400ad8bbe

Aliases

arxiv: 1506.00036 · arxiv_version: 1506.00036v2 · doi: 10.48550/arxiv.1506.00036 · pith_short_12: WG5XIYN4DEZ4 · pith_short_16: WG5XIYN4DEZ4R2BX · pith_short_8: WG5XIYN4

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/WG5XIYN4DEZ4R2BXAE3VOG2S4A \
  | 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: b1bb7461bc1933c8e8370137571b52e0146a18fbe722becf84278c0400ad8bbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0896cf26e46fa790a4715233638f1ecf4fa15fcaa61c24d78ea62d5bd6f922e",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2015-05-29T21:38:49Z",
    "title_canon_sha256": "b5eaa29a97833eb8b52fa16a93fc7435d6477ebbc32b25ef2a9d3093fe1d29de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00036",
    "kind": "arxiv",
    "version": 2
  }
}