Pith Number

pith:FDJDWSN3

pith:2026:FDJDWSN3USK3HNDP6T6FDRCZHJ

not attested not anchored not stored refs pending

Hollow Needle Puncture Mechanics for Biopsy Sampling

Frederic Lechenault, Matteo Ciccotti, Mattia Bacca, Yiting Wu

arxiv:2605.22790 v1 · 2026-05-21 · cond-mat.soft · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDJDWSN3USK3HNDP6T6FDRCZHJ}

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	2026-05-22T02:04:55.104571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28d23b49bba495b3b46ff4fc51c4593a79f3ae77bbb5137f0cc302a73999c3ab

Aliases

arxiv: 2605.22790 · arxiv_version: 2605.22790v1 · doi: 10.48550/arxiv.2605.22790 · pith_short_12: FDJDWSN3USK3 · pith_short_16: FDJDWSN3USK3HNDP · pith_short_8: FDJDWSN3

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/FDJDWSN3USK3HNDP6T6FDRCZHJ \
  | 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: 28d23b49bba495b3b46ff4fc51c4593a79f3ae77bbb5137f0cc302a73999c3ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb7e3435e83a82ef5c354cff9943fc2bd419643dbfd877074443a05571ef23fa",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2026-05-21T17:44:21Z",
    "title_canon_sha256": "7c3f4bcc0faefcc612e12ec4f490239e8fb1e3c61fca9527188898eae643ad76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22790",
    "kind": "arxiv",
    "version": 1
  }
}