Pith Number

pith:FJRAWS2D

pith:2012:FJRAWS2DGODSLR7MXYUOIXEC7B

not attested not anchored not stored refs pending

Jammed frictional tetrahedra are hyperstatic

Matthias Schr\"oter, Max Neudecker, Stephan Herminghaus, Stephan Ulrich

arxiv:1202.6272 v4 · 2012-02-28 · 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{FJRAWS2DGODSLR7MXYUOIXEC7B}

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	2026-05-18T01:27:15.536269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a620b4b43338725c7ecbe28e45c82f87dd853562b0392f668e1455e83b575ae

Aliases

arxiv: 1202.6272 · arxiv_version: 1202.6272v4 · doi: 10.48550/arxiv.1202.6272 · pith_short_12: FJRAWS2DGODS · pith_short_16: FJRAWS2DGODSLR7M · pith_short_8: FJRAWS2D

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/FJRAWS2DGODSLR7MXYUOIXEC7B \
  | 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: 2a620b4b43338725c7ecbe28e45c82f87dd853562b0392f668e1455e83b575ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46ca0ee4665601fcf217f6079613eb0b86742b342acfe56d394a709e2a2e1b91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2012-02-28T16:27:45Z",
    "title_canon_sha256": "5d2f6876a0f61d08aec4fb40eb012ca0fc97a4078e6c6c97920eb29ff3da1eb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.6272",
    "kind": "arxiv",
    "version": 4
  }
}