Pith Number

pith:P4KLZPMQ

pith:2012:P4KLZPMQ4HUBKZJDMYOB5QKY5D

not attested not anchored not stored refs pending

Polygons vs. clumps of discs: a numerical study of the influence of grain shape on the mechanical behaviour of granular materials

G. Combe, K. Szarf, P. Villard

arxiv:1208.0565 v1 · 2012-08-02 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4KLZPMQ4HUBKZJDMYOB5QKY5D}

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	2026-05-18T03:49:33.763657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f14bcbd90e1e8156523661c1ec158e8edf1621531c74b502b4f8761c22a5251

Aliases

arxiv: 1208.0565 · arxiv_version: 1208.0565v1 · doi: 10.48550/arxiv.1208.0565 · pith_short_12: P4KLZPMQ4HUB · pith_short_16: P4KLZPMQ4HUBKZJD · pith_short_8: P4KLZPMQ

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/P4KLZPMQ4HUBKZJDMYOB5QKY5D \
  | 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: 7f14bcbd90e1e8156523661c1ec158e8edf1621531c74b502b4f8761c22a5251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5df986226a6caf3831fccf927e051c0b49792094c6642a869df510cbf61c393",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2012-08-02T18:09:55Z",
    "title_canon_sha256": "9891860707a433e895b5277947b7101f7b8c7bb7dc0bc925c068734df3acea64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0565",
    "kind": "arxiv",
    "version": 1
  }
}