Pith Number

pith:HUTBRWYV

pith:2018:HUTBRWYV2C4FAFYZBPYEYJ7V4G

not attested not anchored not stored refs pending

Sufficient connectivity conditions for rigidity of symmetric frameworks

Bernd Schulze, Viktoria E. Kaszanitzky

arxiv:1804.10458 v1 · 2018-04-27 · 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{HUTBRWYV2C4FAFYZBPYEYJ7V4G}

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	2026-05-18T00:17:20.699233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d2618db15d0b85017190bf04c27f5e1a301a70de96712de7cdbd59a2d2edcd8

Aliases

arxiv: 1804.10458 · arxiv_version: 1804.10458v1 · doi: 10.48550/arxiv.1804.10458 · pith_short_12: HUTBRWYV2C4F · pith_short_16: HUTBRWYV2C4FAFYZ · pith_short_8: HUTBRWYV

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/HUTBRWYV2C4FAFYZBPYEYJ7V4G \
  | 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: 3d2618db15d0b85017190bf04c27f5e1a301a70de96712de7cdbd59a2d2edcd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1206b182df3cb5e51ddc53a6caa5328ac3787f27db6a80e0da1ee50e6e76eb1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-27T12:02:53Z",
    "title_canon_sha256": "ee88ab65d7bb8224a328b345e4961c9bd271e05b2d3777b72641f142695f037f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10458",
    "kind": "arxiv",
    "version": 1
  }
}