Pith Number

pith:2PZVPH6C

pith:2025:2PZVPH6CXIZJG6NLDY2KUHMPD2

not attested not anchored not stored refs pending

Hyperelastic nature of the Hoek-Brown criterion

Daniele A. Di Pietro, Goustan Bacquaert, Ilaria Fontana, Kyrylo Kazymyrenko

arxiv:2507.15813 v1 · 2025-07-21 · physics.app-ph · cs.CE · 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{2PZVPH6CXIZJG6NLDY2KUHMPD2}

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	2026-07-05T11:40:44.912106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3f3579fc2ba329379ab1e34aa1d8f1eb96f0377404a5ce422a6bd94cd9092bd

Aliases

arxiv: 2507.15813 · arxiv_version: 2507.15813v1 · doi: 10.48550/arxiv.2507.15813 · pith_short_12: 2PZVPH6CXIZJ · pith_short_16: 2PZVPH6CXIZJG6NL · pith_short_8: 2PZVPH6C

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/2PZVPH6CXIZJG6NLDY2KUHMPD2 \
  | 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: d3f3579fc2ba329379ab1e34aa1d8f1eb96f0377404a5ce422a6bd94cd9092bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9f035ea0f4bd29dccd79b1fbc4bd2b8299b1a424d0f167abc68e404d16e0fcd",
    "cross_cats_sorted": [
      "cs.CE",
      "physics.class-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2025-07-21T17:20:41Z",
    "title_canon_sha256": "584fa127555eb979c37a8905c77e36553542718b4cc71b6ac7d2f0eb5c69a7a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.15813",
    "kind": "arxiv",
    "version": 1
  }
}