Pith Number

pith:6EL5SAY5

pith:2013:6EL5SAY5GBUTKVKRMK5QZR7G5A

not attested not anchored not stored refs pending

Infinitesimal Rigidity of Symmetric Frameworks

Bernd Schulze, Shin-ichi Tanigawa

arxiv:1308.6380 v2 · 2013-08-29 · math.MG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6EL5SAY5GBUTKVKRMK5QZR7G5A}

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	2026-05-18T03:00:14.598276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f117d9031d306935555162bb0cc7e6e82812f397f56bb7e2fa38501fbdf58948

Aliases

arxiv: 1308.6380 · arxiv_version: 1308.6380v2 · doi: 10.48550/arxiv.1308.6380 · pith_short_12: 6EL5SAY5GBUT · pith_short_16: 6EL5SAY5GBUTKVKR · pith_short_8: 6EL5SAY5

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/6EL5SAY5GBUTKVKRMK5QZR7G5A \
  | 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: f117d9031d306935555162bb0cc7e6e82812f397f56bb7e2fa38501fbdf58948

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "735a0706f2bb4c1f10c95a7d689b451b67cffdd9b9fa1ef9ccb1b158181a509e",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-08-29T06:57:11Z",
    "title_canon_sha256": "adca0765223ee74ad97eb09f36122e346e48aa9f6352f36cc57159aeecb3498a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6380",
    "kind": "arxiv",
    "version": 2
  }
}