Pith Number

pith:54YSMMGV

pith:2016:54YSMMGVG5LHCOZX7TQOJNCTZ7

not attested not anchored not stored refs pending

Different evolutionary paths to complexity for small and large populations of digital organisms

Christoph Adami, Thomas LaBar

arxiv:1604.06299 v1 · 2016-04-21 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54YSMMGVG5LHCOZX7TQOJNCTZ7}

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	2026-05-18T00:52:50.344155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef312630d53756713b37fce0e4b453cfcd5ea785bec3e77cad700d10e70582cd

Aliases

arxiv: 1604.06299 · arxiv_version: 1604.06299v1 · doi: 10.48550/arxiv.1604.06299 · pith_short_12: 54YSMMGVG5LH · pith_short_16: 54YSMMGVG5LHCOZX · pith_short_8: 54YSMMGV

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/54YSMMGVG5LHCOZX7TQOJNCTZ7 \
  | 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: ef312630d53756713b37fce0e4b453cfcd5ea785bec3e77cad700d10e70582cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba3368a17c51921f0eb8f0de2293e4267e1a7bdaf0c538a17e51adbdd734eea2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2016-04-21T13:36:33Z",
    "title_canon_sha256": "dd83d15fb13616e57b2fdb35c23f2faf2b689fca334e20a5f7ab0fe18aee4d88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06299",
    "kind": "arxiv",
    "version": 1
  }
}