Pith Number

pith:ZWFPB3VL

pith:2008:ZWFPB3VLA4OSS7ZKQQZBKHNVLT

not attested not anchored not stored refs pending

Hubs and Clusters in the Evolving U. S. Internal Migration Network

Paul B. Slater

arxiv:0809.2768 v3 · 2008-09-16 · physics.soc-ph · cs.SI · physics.data-an · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWFPB3VLA4OSS7ZKQQZBKHNVLT}

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	2026-05-18T03:52:12.821090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd8af0eeab071d297f2a8432151db55cf0c3cab217130b0526949ec7e74a5650

Aliases

arxiv: 0809.2768 · arxiv_version: 0809.2768v3 · doi: 10.48550/arxiv.0809.2768 · pith_short_12: ZWFPB3VLA4OS · pith_short_16: ZWFPB3VLA4OSS7ZK · pith_short_8: ZWFPB3VL

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/ZWFPB3VLA4OSS7ZKQQZBKHNVLT \
  | 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: cd8af0eeab071d297f2a8432151db55cf0c3cab217130b0526949ec7e74a5650

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29beb33b8400f7b0c53bfb9edb4aceae9f420ae1abe1eca78a17995a12d38b60",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.data-an",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2008-09-16T18:45:45Z",
    "title_canon_sha256": "490c221c7604099ec1fbdf91f51a16bf40e71bfc8815e9da57eec0863baeae54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2768",
    "kind": "arxiv",
    "version": 3
  }
}