Pith Number

pith:EFIUAGEK

pith:2016:EFIUAGEKJMVYROADAY6ZLXXL5Q

not attested not anchored not stored refs pending

Sooner than Expected: Hitting the Wall of Complexity in Evolution

Heiko Hamann, Payam Zahadat, Thomas Schmickl

arxiv:1609.07722 v1 · 2016-09-25 · 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{EFIUAGEKJMVYROADAY6ZLXXL5Q}

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	2026-05-18T01:03:55.625844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

215140188a4b2b88b803063d95deebec25290c9391f844459bf2df982b9de941

Aliases

arxiv: 1609.07722 · arxiv_version: 1609.07722v1 · doi: 10.48550/arxiv.1609.07722 · pith_short_12: EFIUAGEKJMVY · pith_short_16: EFIUAGEKJMVYROAD · pith_short_8: EFIUAGEK

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/EFIUAGEKJMVYROADAY6ZLXXL5Q \
  | 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: 215140188a4b2b88b803063d95deebec25290c9391f844459bf2df982b9de941

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb1eef68ef11a6f475341d3902d88a3d826f3bfbf69765fffce01ce4f63278fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2016-09-25T10:00:41Z",
    "title_canon_sha256": "6a34dbf36e25a3a784a60f96920cb624a46cc6866135af9a4e8ddfc62276acf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07722",
    "kind": "arxiv",
    "version": 1
  }
}