Pith Number

pith:7DQJWOX2

pith:2018:7DQJWOX2JYK5VZKT3C7J4PLJJD

not attested not anchored not stored refs pending

Barrier Certificates for Assured Machine Teaching

Bo Wu, Mohamadreza Ahmadi, Ufuk Topcu, Yisong Yue, Yuxin Chen

arxiv:1810.00093 v2 · 2018-09-28 · 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{7DQJWOX2JYK5VZKT3C7J4PLJJD}

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	2026-06-04T20:13:23.841161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8e09b3afa4e15dae553d8be9e3d6948ea53fc6d3fee3d9f63d37f9b3dd631a8

Aliases

arxiv: 1810.00093 · arxiv_version: 1810.00093v2 · doi: 10.48550/arxiv.1810.00093 · pith_short_12: 7DQJWOX2JYK5 · pith_short_16: 7DQJWOX2JYK5VZKT · pith_short_8: 7DQJWOX2

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/7DQJWOX2JYK5VZKT3C7J4PLJJD \
  | 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: f8e09b3afa4e15dae553d8be9e3d6948ea53fc6d3fee3d9f63d37f9b3dd631a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "518ab926fd1e4d69c50f473d79b237cab311bcab336d7368c17a4975b8ca7b16",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2018-09-28T21:45:12Z",
    "title_canon_sha256": "d91c45f99d3d5718bae7af3c94598ed57aa3af01cd9ab534ea808538afa266db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00093",
    "kind": "arxiv",
    "version": 2
  }
}