Pith Number

pith:XVB5JTYB

pith:2009:XVB5JTYBTY5JAAZJEWTXGOLUV6

not attested not anchored not stored refs pending

Investigation of a hydraulic impact: a technology in rock breaking

Martin Genet (LMT), Thanh Tran-Cong, Wenyi Yan

arxiv:0908.4140 v1 · 2009-08-28 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XVB5JTYBTY5JAAZJEWTXGOLUV6}

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	2026-05-18T02:12:21.728011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd43d4cf019e3a90032925a7733974af97920d20fb2c83f36932a1952037f654

Aliases

arxiv: 0908.4140 · arxiv_version: 0908.4140v1 · doi: 10.48550/arxiv.0908.4140 · pith_short_12: XVB5JTYBTY5J · pith_short_16: XVB5JTYBTY5JAAZJ · pith_short_8: XVB5JTYB

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/XVB5JTYBTY5JAAZJEWTXGOLUV6 \
  | 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: bd43d4cf019e3a90032925a7733974af97920d20fb2c83f36932a1952037f654

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3670994c887e4fd647c5fe9a4bd5523bccc1ccec0c86ff0106805b3bb14121ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2009-08-28T06:38:31Z",
    "title_canon_sha256": "ef088867006c1f515609d4ed50586fd8c3854c4fd5f809bbac9297179a92f4f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4140",
    "kind": "arxiv",
    "version": 1
  }
}