Pith Number

pith:T2HDF7VN

pith:2022:T2HDF7VNLE6BP2PPAIN4HRSFLV

not attested not anchored not stored refs pending

Sim-to-Real for Soft Robots using Differentiable FEM: Recipes for Meshing, Damping, and Actuation

Andrew Spielberg, Mathieu Dubied, Mike Michelis, Robert Katzschmann

arxiv:2201.12560 v3 · 2022-01-29 · 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{T2HDF7VNLE6BP2PPAIN4HRSFLV}

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	2026-07-05T04:00:22.197110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e8e32fead593c17e9ef021bc3c6455d6353686be9cd1b71ef1d6432d4c8f3ff

Aliases

arxiv: 2201.12560 · arxiv_version: 2201.12560v3 · doi: 10.48550/arxiv.2201.12560 · pith_short_12: T2HDF7VNLE6B · pith_short_16: T2HDF7VNLE6BP2PP · pith_short_8: T2HDF7VN

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/T2HDF7VNLE6BP2PPAIN4HRSFLV \
  | 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: 9e8e32fead593c17e9ef021bc3c6455d6353686be9cd1b71ef1d6432d4c8f3ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bc98ff7fb9a2bf65ea9d8090234b7bd4f3675e789be2db58a633da302f24a3d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2022-01-29T11:03:26Z",
    "title_canon_sha256": "a55aaeda257b2798c4ec355ba1bf9b57c4e3496a96b433e0f7cd11029ddd4ef1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.12560",
    "kind": "arxiv",
    "version": 3
  }
}