Pith Number

pith:7WJFIIYY

pith:2021:7WJFIIYYHI47QNUH5DQ7EQVIW4

not attested not anchored not stored refs pending

Data-Driven Reachability analysis and Support set Estimation with Christoffel Functions

Alex Devonport, Forest Yang, Laurent El Ghaoui, Murat Arcak

arxiv:2112.09995 v1 · 2021-12-18 · eess.SY · cs.LG · 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{7WJFIIYYHI47QNUH5DQ7EQVIW4}

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	2026-07-05T03:42:09.805226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd925423183a39f83687e8e1f242a8b72527124b0b1e2071fda3b58fb3bd09c2

Aliases

arxiv: 2112.09995 · arxiv_version: 2112.09995v1 · doi: 10.48550/arxiv.2112.09995 · pith_short_12: 7WJFIIYYHI47 · pith_short_16: 7WJFIIYYHI47QNUH · pith_short_8: 7WJFIIYY

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/7WJFIIYYHI47QNUH5DQ7EQVIW4 \
  | 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: fd925423183a39f83687e8e1f242a8b72527124b0b1e2071fda3b58fb3bd09c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fea380cdc2d13e78d6e78eee17ec675c34610d7a8b0098dd2d840550bb976a47",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-12-18T20:25:34Z",
    "title_canon_sha256": "f64e3a8dc480b81dae76e3cb645fffaca21f7116e03f998a516cdcb0594335dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.09995",
    "kind": "arxiv",
    "version": 1
  }
}