Pith Number

pith:6BW323SA

pith:2022:6BW323SA4OPBTLBRG2ZBFZ7JUU

not attested not anchored not stored refs pending

Differentiable Physics Simulations with Contacts: Do They Have Correct Gradients w.r.t. Position, Velocity and Control?

Georgia Olympia Brikis, Jiequn Han, Yaofeng Desmond Zhong

arxiv:2207.05060 v1 · 2022-07-08 · cs.LG · cs.AI · 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{6BW323SA4OPBTLBRG2ZBFZ7JUU}

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.

Cited by

1 paper in Pith

Fast and Reliable Gradients for Deformables Across Frictional Contact Regimes

Receipt and verification

First computed	2026-07-05T04:39:08.667168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f06dbd6e40e39e19ac3136b212e7e9a5172364e8970824ba321447854a8bbb9f

Aliases

arxiv: 2207.05060 · arxiv_version: 2207.05060v1 · doi: 10.48550/arxiv.2207.05060 · pith_short_12: 6BW323SA4OPB · pith_short_16: 6BW323SA4OPBTLBR · pith_short_8: 6BW323SA

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/6BW323SA4OPBTLBRG2ZBFZ7JUU \
  | 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: f06dbd6e40e39e19ac3136b212e7e9a5172364e8970824ba321447854a8bbb9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b4896c387d3a19a64f10a78defb5479a401838f06b494589f93ea8147012c8a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-07-08T19:30:09Z",
    "title_canon_sha256": "10be581e1ffe0523eb4187a12f2792c5791c56ffe258d2d6764b2686bcd4068f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.05060",
    "kind": "arxiv",
    "version": 1
  }
}