Pith Number

pith:2VRK4SFR

pith:2010:2VRK4SFRAYLUCEXPTJQ5GKPXXY

not attested not anchored not stored refs pending

Piezonuclear Reactions

Andrea Petrucci, Fabio Cardone, Roberto Mignani

arxiv:1009.4127 v1 · 2010-09-21 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2VRK4SFRAYLUCEXPTJQ5GKPXXY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:40:34.507396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d562ae48b106174112ef9a61d329f7be3988f0a25d203f5377385799328952e6

Aliases

arxiv: 1009.4127 · arxiv_version: 1009.4127v1 · doi: 10.48550/arxiv.1009.4127 · pith_short_12: 2VRK4SFRAYLU · pith_short_16: 2VRK4SFRAYLUCEXP · pith_short_8: 2VRK4SFR

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/2VRK4SFRAYLUCEXPTJQ5GKPXXY \
  | 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: d562ae48b106174112ef9a61d329f7be3988f0a25d203f5377385799328952e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "682c832636eb8a21adfe54ddccfeb3d9c0817d146c7f88d1339b21b6a171108e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2010-09-21T15:37:41Z",
    "title_canon_sha256": "d264e79ba6a06afce060020670f38c1abb4cc01016768b4195f3bf59ed6bbdfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4127",
    "kind": "arxiv",
    "version": 1
  }
}