Pith Number

pith:RSUSJRZV

pith:2016:RSUSJRZVVR2JKCGMU57HYJF2M5

not attested not anchored not stored refs pending

Convex Hull Calculations: a Matlab Implementation and Correctness Proofs for the lrs-Algorithm

Alexander Kova\v{c}ec, Bernardete Ribeiro

arxiv:1604.06112 v1 · 2016-04-20 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RSUSJRZVVR2JKCGMU57HYJF2M5}

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	2026-05-18T01:16:32.592280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ca924c735ac749508cca77e7c24ba676c00c96381d561f7a91fe939b8a3a15e

Aliases

arxiv: 1604.06112 · arxiv_version: 1604.06112v1 · doi: 10.48550/arxiv.1604.06112 · pith_short_12: RSUSJRZVVR2J · pith_short_16: RSUSJRZVVR2JKCGM · pith_short_8: RSUSJRZV

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/RSUSJRZVVR2JKCGMU57HYJF2M5 \
  | 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: 8ca924c735ac749508cca77e7c24ba676c00c96381d561f7a91fe939b8a3a15e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "460315c387060cc6aa2917ac10a258b7a2dfac3bfe330af1ad22b7accb986e24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2016-04-20T20:07:48Z",
    "title_canon_sha256": "4d098c1c17038dace9c9c6af6b7caf1c80b48f4fe800a870afe27f0f23b39745"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06112",
    "kind": "arxiv",
    "version": 1
  }
}