Pith Number

pith:5WHHGW5Y

pith:2023:5WHHGW5YPHC6T3NGK75SVSJBKG

not attested not anchored not stored refs pending

Aquarium: A Fully Differentiable Fluid-Structure Interaction Solver for Robotics Applications

Jeong Hun Lee, Mike Y. Michelis, Robert Katzschmann, Zachary Manchester

arxiv:2301.07028 v2 · 2023-01-17 · 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{5WHHGW5YPHC6T3NGK75SVSJBKG}

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	2026-07-05T05:49:04.512363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed8e735bb879c5e9eda657fb2ac921518bf66462a4ca06c6bfacf482e3d1c883

Aliases

arxiv: 2301.07028 · arxiv_version: 2301.07028v2 · doi: 10.48550/arxiv.2301.07028 · pith_short_12: 5WHHGW5YPHC6 · pith_short_16: 5WHHGW5YPHC6T3NG · pith_short_8: 5WHHGW5Y

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/5WHHGW5YPHC6T3NGK75SVSJBKG \
  | 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: ed8e735bb879c5e9eda657fb2ac921518bf66462a4ca06c6bfacf482e3d1c883

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7c695bdf992ce75fac82c47152ca8451b4c9f93e3687cf77c3f37cf96332657",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2023-01-17T17:26:24Z",
    "title_canon_sha256": "844e8b995f4f3841dbf03562b7a10e7e4b05bb0d827664a92ec36d8dc64dd4f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.07028",
    "kind": "arxiv",
    "version": 2
  }
}