Pith Number

pith:OKO7RRUP

pith:2026:OKO7RRUP73OGYE237GHXEEETZI

not attested not anchored not stored refs pending

Fast and Reliable Gradients for Deformables Across Frictional Contact Regimes

Bingyang Zhou, Fan Shi, Gang Yang, Jason Pho, Siyuan Luo, Yulin Li, Zhenhao Huang, Ziqiu Zeng

arxiv:2603.16478 v2 · 2026-03-17 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OKO7RRUP73OGYE237GHXEEETZI}

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	2026-05-20T00:04:28.583877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

729df8c68ffedc6c135bf98f721093ca3ef8bae1940b2d490cf27269f2415f7c

Aliases

arxiv: 2603.16478 · arxiv_version: 2603.16478v2 · doi: 10.48550/arxiv.2603.16478 · pith_short_12: OKO7RRUP73OG · pith_short_16: OKO7RRUP73OGYE23 · pith_short_8: OKO7RRUP

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/OKO7RRUP73OGYE237GHXEEETZI \
  | 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: 729df8c68ffedc6c135bf98f721093ca3ef8bae1940b2d490cf27269f2415f7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "593c87a547f92541bbd345b820e95ee097896687940daa0f3c056a4a3b10e584",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2026-03-17T13:04:23Z",
    "title_canon_sha256": "f3af2a168e9f7352cd43b34d20500ac03b8cc2b1cc3aecd14bd3d85fafb0ee33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.16478",
    "kind": "arxiv",
    "version": 2
  }
}