Pith Number

pith:R4BLH6HF

pith:2012:R4BLH6HF4DSEVGJATKHJXHJQ2Q

not attested not anchored not stored refs pending

The Geodesics of Rolling Ball Systems

Daniel R. Cole

arxiv:1208.5555 v1 · 2012-08-28 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4BLH6HF4DSEVGJATKHJXHJQ2Q}

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	2026-05-18T03:46:58.393396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f02b3f8e5e0e44a99209a8e9b9d30d433075f97efe5c2ad877c71475d782742

Aliases

arxiv: 1208.5555 · arxiv_version: 1208.5555v1 · doi: 10.48550/arxiv.1208.5555 · pith_short_12: R4BLH6HF4DSE · pith_short_16: R4BLH6HF4DSEVGJA · pith_short_8: R4BLH6HF

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/R4BLH6HF4DSEVGJATKHJXHJQ2Q \
  | 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: 8f02b3f8e5e0e44a99209a8e9b9d30d433075f97efe5c2ad877c71475d782742

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cabcb973115640cafc71e92342c7243e10201162c9ff9cdac5733d4da013472",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-08-28T04:27:00Z",
    "title_canon_sha256": "ea8ccbc08c15b6f5db287034dc263c5d31a302268283d72342beeed20e8f72b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5555",
    "kind": "arxiv",
    "version": 1
  }
}