Pith Number

pith:O2OIKFWR

pith:2026:O2OIKFWRAFMVB7IWG55RJEN6SZ

not attested not anchored not stored refs pending

The Ramanujan Challenge For AI

Ashvni Narayanan, Carsten Schneider, Elyasheev Leibtag, Hila Barkan, Ido Kaminer, John Campbell, Michael Shalyt, Rotem Kalisch, Shachar Weinbaum, Tali Monderer

arxiv:2607.09721 v1 · 2026-06-27 · math.HO · cs.AI · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2OIKFWRAFMVB7IWG55RJEN6SZ}

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	2026-07-14T00:18:32.065202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769c8516d1015950fd16377b1491be966cbb101ba2b7f7af2e6818ceedac9fd1

Aliases

arxiv: 2607.09721 · arxiv_version: 2607.09721v1 · doi: 10.48550/arxiv.2607.09721 · pith_short_12: O2OIKFWRAFMV · pith_short_16: O2OIKFWRAFMVB7IW · pith_short_8: O2OIKFWR

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/O2OIKFWRAFMVB7IWG55RJEN6SZ \
  | 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: 769c8516d1015950fd16377b1491be966cbb101ba2b7f7af2e6818ceedac9fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8251c4b5c7d702d991bee9d7cb96dc87406a0f7b0caa270081747d4b2aa19e5",
    "cross_cats_sorted": [
      "cs.AI",
      "math.NT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2026-06-27T21:39:08Z",
    "title_canon_sha256": "6fbd4d636bdb4c6de63daa5e432809045ae8283f704b40e7413114b409f4b433"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.09721",
    "kind": "arxiv",
    "version": 1
  }
}