Pith Number

pith:W4JAFQIM

pith:2026:W4JAFQIMAJ5FMRNDNOQOBLS3IG

not attested not anchored not stored refs pending

A Compact 3D-Printed Soft Finger with Cyclic Hydraulic Actuation

Aika Ono, Chao Wu, Dandan Zhang, Sara Ben Haj Hammouda, Victoria Bamgboye, Wen Fan, Yunjia Li, Zefang Mao

arxiv:2607.17840 v1 · 2026-07-20 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4JAFQIMAJ5FMRNDNOQOBLS3IG}

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	2026-07-21T02:22:02.869286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b71202c10c027a5645a36ba0e0ae5b41a2231ed80b9fbeab90f89936f5607305

Aliases

arxiv: 2607.17840 · arxiv_version: 2607.17840v1 · doi: 10.48550/arxiv.2607.17840 · pith_short_12: W4JAFQIMAJ5F · pith_short_16: W4JAFQIMAJ5FMRND · pith_short_8: W4JAFQIM

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/W4JAFQIMAJ5FMRNDNOQOBLS3IG \
  | 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: b71202c10c027a5645a36ba0e0ae5b41a2231ed80b9fbeab90f89936f5607305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a8f69d1f3f190ad3d93a3d76a0aff35e7d6b56a7767052181fcd9605d59d383",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-07-20T11:30:23Z",
    "title_canon_sha256": "e14beba0cb1c5a89d5bad902855b79cc0a57830664e642028e0303c5584505d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17840",
    "kind": "arxiv",
    "version": 1
  }
}