Pith Number

pith:V5ZWSQOP

pith:2001:V5ZWSQOP3LFPAATD7SOEOLMDNT

not attested not anchored not stored refs pending

Noncommutative 't Hooft Instantons

Alexander D. Popov, Olaf Lechtenfeld

arxiv:hep-th/0109209 v3 · 2001-09-27 · 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{V5ZWSQOP3LFPAATD7SOEOLMDNT}

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	2026-07-04T16:28:07.141944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af736941cfdacaf00263fc9c472d836cd79fe920ce16b7b11b5f7c919078ab46

Aliases

arxiv: hep-th/0109209 · arxiv_version: hep-th/0109209v3 · doi: 10.48550/arxiv.hep-th/0109209 · pith_short_12: V5ZWSQOP3LFP · pith_short_16: V5ZWSQOP3LFPAATD · pith_short_8: V5ZWSQOP

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/V5ZWSQOP3LFPAATD7SOEOLMDNT \
  | 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: af736941cfdacaf00263fc9c472d836cd79fe920ce16b7b11b5f7c919078ab46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "236bb8ab9e11db2da77b4ec516ed7f1a513345c059b61e33fa38585e922f3f5c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2001-09-27T12:42:18Z",
    "title_canon_sha256": "710ed607d700d69a5ceae522d0aa1a88b0590c7733376071932142285b7abdf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0109209",
    "kind": "arxiv",
    "version": 3
  }
}