Pith Number

pith:NZQO4A6F

pith:2026:NZQO4A6FAHDJTJE3E4LBAILLXR

not attested not anchored not stored refs pending

No Certificate for Alignment: Two Independent Impossibilities and the Pareto Frontier of Achievable Safety Guarantees

Ayushi Agarwal

arxiv:2603.08761 v2 · 2026-03-08 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZQO4A6FAHDJTJE3E4LBAILLXR}

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	2026-05-28T00:05:15.154889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e60ee03c501c699a49b271610216bbc4ad86ba4211a56c692fac9869707df16

Aliases

arxiv: 2603.08761 · arxiv_version: 2603.08761v2 · doi: 10.48550/arxiv.2603.08761 · pith_short_12: NZQO4A6FAHDJ · pith_short_16: NZQO4A6FAHDJTJE3 · pith_short_8: NZQO4A6F

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/NZQO4A6FAHDJTJE3E4LBAILLXR \
  | 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: 6e60ee03c501c699a49b271610216bbc4ad86ba4211a56c692fac9869707df16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cb12803bb7f2ef0e0b382451d3fed3d5794209860c17646dede15ea8945edb0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-03-08T23:03:21Z",
    "title_canon_sha256": "20202319db3b7823882af23fba81e4b8b504e05cc8f3f221f2cf123aa5a5a287"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.08761",
    "kind": "arxiv",
    "version": 2
  }
}