Pith Number

pith:QRH5ARNB

pith:2017:QRH5ARNBLHZNRTVA2F36CRWV2I

not attested not anchored not stored refs pending

Long-Term Evolution of Genetic Programming Populations

W. B. Langdon

arxiv:1703.08481 v1 · 2017-03-24 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRH5ARNBLHZNRTVA2F36CRWV2I}

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	2026-05-18T00:47:59.863858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844fd045a159f2d8cea0d177e146d5d21f22fd13e6c91318834cd23edf0caac6

Aliases

arxiv: 1703.08481 · arxiv_version: 1703.08481v1 · doi: 10.48550/arxiv.1703.08481 · pith_short_12: QRH5ARNBLHZN · pith_short_16: QRH5ARNBLHZNRTVA · pith_short_8: QRH5ARNB

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/QRH5ARNBLHZNRTVA2F36CRWV2I \
  | 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: 844fd045a159f2d8cea0d177e146d5d21f22fd13e6c91318834cd23edf0caac6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e73a35c51bb7a8891004634ca422577e8a17ee16ce82f1fa035b1bffdd625ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2017-03-24T15:53:03Z",
    "title_canon_sha256": "b347bb76cf3a664717c597e3c8f50d7e4b3e582a2fb79a18481f4a2ea0c3056e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08481",
    "kind": "arxiv",
    "version": 1
  }
}