Pith Number

pith:KREIHKPB

pith:2015:KREIHKPB36OOFYTFWINKZCL37Z

not attested not anchored not stored refs pending

Forecasting the Integration of Immigrants

Pierluigi Contucci, Rickard Sandell, Seyedalireza Seyedi

arxiv:1509.05447 v1 · 2015-09-17 · 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{KREIHKPB36OOFYTFWINKZCL37Z}

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	2026-05-18T01:32:43.181696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

544883a9e1df9ce2e265b21aac897bfe4cec931cdd229603350e6f45c9ea9ab1

Aliases

arxiv: 1509.05447 · arxiv_version: 1509.05447v1 · doi: 10.48550/arxiv.1509.05447 · pith_short_12: KREIHKPB36OO · pith_short_16: KREIHKPB36OOFYTF · pith_short_8: KREIHKPB

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/KREIHKPB36OOFYTFWINKZCL37Z \
  | 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: 544883a9e1df9ce2e265b21aac897bfe4cec931cdd229603350e6f45c9ea9ab1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca72473ea1e05fcc568d32bad8f50bb166b271ca33ed420c155aadb928e2f0c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-09-17T21:34:04Z",
    "title_canon_sha256": "c7d346b762b9202278b3b2e807e1d4d1460d51a961f24b04d36f534b64751f27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05447",
    "kind": "arxiv",
    "version": 1
  }
}