Pith Number

pith:Y4UJI2GI

pith:2015:Y4UJI2GIHK6BK2WEKS43EJHD5I

not attested not anchored not stored refs pending

Generating upward sweeps in population using the Turchin--Korotayev model

Richard E. Niemeyer, Robert G. Niemeyer

arxiv:1504.04688 v1 · 2015-04-18 · 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{Y4UJI2GIHK6BK2WEKS43EJHD5I}

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	2026-05-18T02:18:30.697449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7289468c83abc156ac454b9b224e3ea3a7f81fda084c72e65b06df1ac6f0d1b

Aliases

arxiv: 1504.04688 · arxiv_version: 1504.04688v1 · doi: 10.48550/arxiv.1504.04688 · pith_short_12: Y4UJI2GIHK6B · pith_short_16: Y4UJI2GIHK6BK2WE · pith_short_8: Y4UJI2GI

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/Y4UJI2GIHK6BK2WEKS43EJHD5I \
  | 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: c7289468c83abc156ac454b9b224e3ea3a7f81fda084c72e65b06df1ac6f0d1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa19b3f23bbaf2814e845673f5a2a3e24e9552df876bc3c04beed7adbd21634",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-04-18T07:02:17Z",
    "title_canon_sha256": "0fbeb9b857aefa288177703dc69b2190c3d0cb394902d093f36940aa7b737f6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04688",
    "kind": "arxiv",
    "version": 1
  }
}