Pith Number

pith:RBCBVWEZ

pith:2015:RBCBVWEZANRFSK2NSONFC7VTXO

not attested not anchored not stored refs pending

Experiments demonstrate that the null space of the rigidity matrix determines grain motion during vibration-induced compaction

A. Hubard, C. S. O'Hern, M. D. Shattuck

arxiv:1505.07514 v1 · 2015-05-27 · 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{RBCBVWEZANRFSK2NSONFC7VTXO}

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	2026-05-18T02:00:58.177836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88441ad8990362592b4d939a517eb3bba3d5221d3528380b458458d389f7967f

Aliases

arxiv: 1505.07514 · arxiv_version: 1505.07514v1 · doi: 10.48550/arxiv.1505.07514 · pith_short_12: RBCBVWEZANRF · pith_short_16: RBCBVWEZANRFSK2N · pith_short_8: RBCBVWEZ

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/RBCBVWEZANRFSK2NSONFC7VTXO \
  | 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: 88441ad8990362592b4d939a517eb3bba3d5221d3528380b458458d389f7967f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa9f6bdc080c6f839323a64cb725ebfd79aefd784b19082714fc5c7a14ec397",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2015-05-27T23:48:10Z",
    "title_canon_sha256": "5d060d47201de4e42f5ac7fc2df5539223a7386cdbc6cde36fc460a50d1e1a89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07514",
    "kind": "arxiv",
    "version": 1
  }
}