Pith Number

pith:PX2B2ICF

pith:2026:PX2B2ICFYF6EN7VXUSEGL732XL

not attested not anchored not stored refs pending

Building Better Activation Oracles

Adam Karvonen, Celeste De Schamphelaere, Jan Bauer, Neel Nanda, Niclas Luick

arxiv:2606.02609 v1 · 2026-05-23 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PX2B2ICFYF6EN7VXUSEGL732XL}

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	2026-06-03T00:05:04.480127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7df41d2045c17c46feb7a48865ff7abade181e112ab96294794c581097532768

Aliases

arxiv: 2606.02609 · arxiv_version: 2606.02609v1 · doi: 10.48550/arxiv.2606.02609 · pith_short_12: PX2B2ICFYF6E · pith_short_16: PX2B2ICFYF6EN7VX · pith_short_8: PX2B2ICF

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/PX2B2ICFYF6EN7VXUSEGL732XL \
  | 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: 7df41d2045c17c46feb7a48865ff7abade181e112ab96294794c581097532768

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ee42da5c66795da0fdb58d629337e49337c4b6a31b0d5a9ee8a874321392b1",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-23T20:37:33Z",
    "title_canon_sha256": "de872073e676ed32ac117b0a5fddba52b921c277ac188de5b0168985be606db6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02609",
    "kind": "arxiv",
    "version": 1
  }
}