Pith Number

pith:U26HBWWZ

pith:2019:U26HBWWZBCAXYA3BHW6EQHWCQL

not attested not anchored not stored refs pending

Evolving Robots on Easy Mode: Towards a Variable Complexity Controller for Quadrupeds

Charles Patrick Martin, Jim Torresen, Kyrre Glette, T{\o}nnes Frostad Nygaard

arxiv:1902.04403 v1 · 2019-02-12 · 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{U26HBWWZBCAXYA3BHW6EQHWCQL}

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	2026-05-17T23:54:12.349638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6bc70dad908817c03613dbc481ec282fadee3f8a79f39032d57e7da71ecdf70

Aliases

arxiv: 1902.04403 · arxiv_version: 1902.04403v1 · doi: 10.48550/arxiv.1902.04403 · pith_short_12: U26HBWWZBCAX · pith_short_16: U26HBWWZBCAXYA3B · pith_short_8: U26HBWWZ

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/U26HBWWZBCAXYA3BHW6EQHWCQL \
  | 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: a6bc70dad908817c03613dbc481ec282fadee3f8a79f39032d57e7da71ecdf70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6930432d8c6660d0b0302df2c191f948ca1f6bec48716c28b927e214b8deb326",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2019-02-12T14:22:59Z",
    "title_canon_sha256": "c51d9f16afad088c2625010fcc3193e3a05926b8e7cb3b54bc3359cc0bcea09b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04403",
    "kind": "arxiv",
    "version": 1
  }
}