Pith Number

pith:NZIITW7P

pith:2003:NZIITW7PKRAKCE4EXV5DXHBT3M

not attested not anchored not stored refs pending

Instanton counting on blowup. I. 4-dimensional pure gauge theory

Hiraku Nakajima, Kota Yoshioka

arxiv:math/0306198 v2 · 2003-06-12 · math.AG · hep-th · math-ph · math.MP

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

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	2026-05-18T01:38:29.019682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e5089dbef5440a11384bd7a3b9c33db2a77488a56acb412d06a7f942993d144

Aliases

arxiv: math/0306198 · arxiv_version: math/0306198v2 · doi: 10.48550/arxiv.math/0306198 · pith_short_12: NZIITW7PKRAK · pith_short_16: NZIITW7PKRAKCE4E · pith_short_8: NZIITW7P

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/NZIITW7PKRAKCE4EXV5DXHBT3M \
  | 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: 6e5089dbef5440a11384bd7a3b9c33db2a77488a56acb412d06a7f942993d144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95e842bae4a77e8635fed6c454fa85868a5b1a919fba65752eb70da619f415d8",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2003-06-12T06:01:32Z",
    "title_canon_sha256": "f617c54bd978852e62e5a933c6b281bc23ccdb86c38056b879c367576e25ea09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0306198",
    "kind": "arxiv",
    "version": 2
  }
}