Pith Number

pith:WW6KQA54

pith:2008:WW6KQA54JRKUYU67UHV2IPZJIP

not attested not anchored not stored refs pending

From force distribution to average coordination number in frictional granular matter

Chaoming Song, Christopher Briscoe, Hernan A. Makse, Kun Wang, Ping Wang

arxiv:0808.2682 v1 · 2008-08-20 · cond-mat.soft · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WW6KQA54JRKUYU67UHV2IPZJIP}

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	2026-05-18T04:35:47.930445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bca803bc4c554c53dfa1eba43f2943cc49048db2c6ebe1c2f33225f30a439e

Aliases

arxiv: 0808.2682 · arxiv_version: 0808.2682v1 · doi: 10.48550/arxiv.0808.2682 · pith_short_12: WW6KQA54JRKU · pith_short_16: WW6KQA54JRKUYU67 · pith_short_8: WW6KQA54

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/WW6KQA54JRKUYU67UHV2IPZJIP \
  | 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: b5bca803bc4c554c53dfa1eba43f2943cc49048db2c6ebe1c2f33225f30a439e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ad2158a1dc576d420e2779493ddaf1c8c03a297f2f859ed65cdeeac299c4a1a",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2008-08-20T01:36:10Z",
    "title_canon_sha256": "e807af4a6731935fbb993ee162d7b328f5f90fcea8434644c29ae5b191dad21a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.2682",
    "kind": "arxiv",
    "version": 1
  }
}