Pith Number

pith:4ASF3VZC

pith:2026:4ASF3VZCDZDCXY5SRSRPO66ZPG

not attested not anchored not stored refs pending

Recursive Harness Self-Improvement

Donghyun Lee, Hyunin Lee, Jeffrey Seely, Jinglue Xu, Matei Zaharia, Yujin Tang

arxiv:2607.15524 v1 · 2026-07-17 · 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{4ASF3VZCDZDCXY5SRSRPO66ZPG}

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	2026-07-20T00:18:38.228790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0245dd7221e462be3b28ca2f77bd979baf384bd1654ef2a5a62415ae5802847

Aliases

arxiv: 2607.15524 · arxiv_version: 2607.15524v1 · doi: 10.48550/arxiv.2607.15524 · pith_short_12: 4ASF3VZCDZDC · pith_short_16: 4ASF3VZCDZDCXY5S · pith_short_8: 4ASF3VZC

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/4ASF3VZCDZDCXY5SRSRPO66ZPG \
  | 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: e0245dd7221e462be3b28ca2f77bd979baf384bd1654ef2a5a62415ae5802847

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941437fb28049e405ca23967613137b77db33fc76810701c8baf1276f23bdbda",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-17T00:21:19Z",
    "title_canon_sha256": "0b94c9fe86503a763b4a122658904fdb4cca75191e3fb14d46cb6df10fbfe66e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15524",
    "kind": "arxiv",
    "version": 1
  }
}