Pith Number

pith:D5TMFWZY

pith:2026:D5TMFWZYH25S2AEPQMCWOPP4XR

not attested not anchored not stored refs pending

CORE: Contrastive Reflection Enables Rapid Improvements in Reasoning

Ben Prystawski, Judith E. Fan, Linas Nasvytis, Noah D. Goodman, Satchel Grant, Simon Jerome Han

arxiv:2605.28742 v1 · 2026-05-27 · 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{D5TMFWZYH25S2AEPQMCWOPP4XR}

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	2026-05-28T02:05:01.715263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f66c2db383ebb2d008f8305673dfcbc517fe433b7cd52769127d86000c889e3

Aliases

arxiv: 2605.28742 · arxiv_version: 2605.28742v1 · doi: 10.48550/arxiv.2605.28742 · pith_short_12: D5TMFWZYH25S · pith_short_16: D5TMFWZYH25S2AEP · pith_short_8: D5TMFWZY

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/D5TMFWZYH25S2AEPQMCWOPP4XR \
  | 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: 1f66c2db383ebb2d008f8305673dfcbc517fe433b7cd52769127d86000c889e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fa5872438dce17e00a53ec188b11903d23d282af4769079d11a220a82b7c562",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-27T17:01:50Z",
    "title_canon_sha256": "4444a48f1f803218506328bba5f211f0686526103ab1fe68bb4ff5a8be3b845b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28742",
    "kind": "arxiv",
    "version": 1
  }
}