Pith Number

pith:OSCYIWMU

pith:2026:OSCYIWMUGAGX677K3HTFFXPCT3

not attested not anchored not stored refs pending

Item Response Theory for AI Safety

(2) UK AI Security Institute), David Demitri Africa (2), Joshua Fonseca Rivera (1), Konstantinos Voudouris (2) ((1) Independent, Neil Shah (1)

arxiv:2608.05086 v1 · 2026-08-05 · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSCYIWMUGAGX677K3HTFFXPCT3}

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	2026-08-06T01:49:02.165334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7485845994300d7f7fead9e652dde29eff53bc6ed9599274183029636a44e820

Aliases

arxiv: 2608.05086 · arxiv_version: 2608.05086v1 · doi: 10.48550/arxiv.2608.05086 · pith_short_12: OSCYIWMUGAGX · pith_short_16: OSCYIWMUGAGX677K · pith_short_8: OSCYIWMU

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/OSCYIWMUGAGX677K3HTFFXPCT3 \
  | 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: 7485845994300d7f7fead9e652dde29eff53bc6ed9599274183029636a44e820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e5155ee44d67bb93f4d10530df6991a3ba7e4548bc3ad19d35f9afba20b9ce8",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-08-05T17:25:27Z",
    "title_canon_sha256": "bbf7cba90a53c6202f9f75842cd025c7a3e8353a3fd266bae6840d5bb5157486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.05086",
    "kind": "arxiv",
    "version": 1
  }
}