Pith Number

pith:U3NBFRIT

pith:2018:U3NBFRIT3Q6VY54CA6QFNARC4T

not attested not anchored not stored refs pending

Real-World Evolution Adapts Robot Morphology and Control to Hardware Limitations

Charles P. Martin, Eivind Samuelsen, Jim Torresen, Kyrre Glette, T{\o}nnes F. Nygaard

arxiv:1805.03388 v1 · 2018-05-09 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3NBFRIT3Q6VY54CA6QFNARC4T}

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	2026-05-18T00:16:20.344547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6da12c513dc3d5c778207a0568222e4e9173683eeb97d8a500ffab0c0c5070b

Aliases

arxiv: 1805.03388 · arxiv_version: 1805.03388v1 · doi: 10.48550/arxiv.1805.03388 · pith_short_12: U3NBFRIT3Q6V · pith_short_16: U3NBFRIT3Q6VY54C · pith_short_8: U3NBFRIT

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/U3NBFRIT3Q6VY54CA6QFNARC4T \
  | 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: a6da12c513dc3d5c778207a0568222e4e9173683eeb97d8a500ffab0c0c5070b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b7293449208cc88a53a0daf8dc7a725393a47dd880da69d604365e73e9eb1ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2018-05-09T07:03:14Z",
    "title_canon_sha256": "3d43e6bd3984b6d380b826a55992f5e5db6f26f8dfc57e38fe30e4f7a1fbd308"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03388",
    "kind": "arxiv",
    "version": 1
  }
}