Pith Number

pith:MDOSSZOK

pith:2026:MDOSSZOKDCCBWTT75OVSGK3SJE

not attested not anchored not stored refs pending

When benchmark inferences do not compose: Projectibility in AI evaluation

Brett Reynolds

arxiv:2607.26159 v1 · 2026-07-28 · cs.AI · cs.CY · 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{MDOSSZOKDCCBWTT75OVSGK3SJE}

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	2026-07-30T00:08:35.639554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

60dd2965ca18841b4e7febab232b72490bc38c6c0188f145f9fb3e17386b4346

Aliases

arxiv: 2607.26159 · arxiv_version: 2607.26159v1 · doi: 10.48550/arxiv.2607.26159 · pith_short_12: MDOSSZOKDCCB · pith_short_16: MDOSSZOKDCCBWTT7 · pith_short_8: MDOSSZOK

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/MDOSSZOKDCCBWTT75OVSGK3SJE \
  | 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: 60dd2965ca18841b4e7febab232b72490bc38c6c0188f145f9fb3e17386b4346

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c891d347055f661c64eb44fa261694be3c94588d8878fb97d59089d0fff39b34",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-28T18:07:04Z",
    "title_canon_sha256": "4572fbe5c956a304af3e5790f04e875d35b9c7632a9ad692e99279493260dbc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26159",
    "kind": "arxiv",
    "version": 1
  }
}