Pith Number

pith:IPTDVERA

pith:1999:IPTDVERA63K5SE3RIYUEME7UR7

not attested not anchored not stored refs pending

The Freckled Instantons

A.Losev, N.Nekrasov, S.Shatashvili

arxiv:hep-th/9908204 v2 · 1999-08-30 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPTDVERA63K5SE3RIYUEME7UR7}

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	2026-05-18T00:57:19.041952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43e63a9220f6d5d9137146284613f48fcf7f8ca20eb8a66f7cfc0e44a8bb3e53

Aliases

arxiv: hep-th/9908204 · arxiv_version: hep-th/9908204v2 · doi: 10.48550/arxiv.hep-th/9908204 · pith_short_12: IPTDVERA63K5 · pith_short_16: IPTDVERA63K5SE3R · pith_short_8: IPTDVERA

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/IPTDVERA63K5SE3RIYUEME7UR7 \
  | 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: 43e63a9220f6d5d9137146284613f48fcf7f8ca20eb8a66f7cfc0e44a8bb3e53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "317374dd100d132ef2c5714df2f5b18331509bd0876ef6adf6ae240015359eb2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-08-30T20:57:49Z",
    "title_canon_sha256": "fd81e6f0740a46561d7597e7f479b7e3308b681befedc95b27243ca97ca8aa66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9908204",
    "kind": "arxiv",
    "version": 2
  }
}