Pith Number

pith:Q6X2ELJ5

pith:2021:Q6X2ELJ5DNKIKCC77EKB4PYKA7

not attested not anchored not stored refs pending

Safety-Critical Control using Optimal-decay Control Barrier Function with Guaranteed Point-wise Feasibility

Bike Zhang, Jun Zeng, Koushil Sreenath, Zhongyu Li

arxiv:2103.12375 v1 · 2021-03-23 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q6X2ELJ5DNKIKCC77EKB4PYKA7}

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	2026-07-05T03:44:44.649360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87afa22d3d1b5485085ff9141e3f0a07f9a5619e0ba303a6c6d079a38a957b61

Aliases

arxiv: 2103.12375 · arxiv_version: 2103.12375v1 · doi: 10.48550/arxiv.2103.12375 · pith_short_12: Q6X2ELJ5DNKI · pith_short_16: Q6X2ELJ5DNKIKCC7 · pith_short_8: Q6X2ELJ5

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/Q6X2ELJ5DNKIKCC77EKB4PYKA7 \
  | 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: 87afa22d3d1b5485085ff9141e3f0a07f9a5619e0ba303a6c6d079a38a957b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d86390416f078c289346687f63aa3e5f35d1a304182042f2b211a084d5df5534",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-03-23T08:17:22Z",
    "title_canon_sha256": "2564ca0bbf49cc4a92011c4a8f043805fde0e9ecdf9baa3d111ff4922db543f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.12375",
    "kind": "arxiv",
    "version": 1
  }
}