Pith Number

pith:QRXHX7NP

pith:1998:QRXHX7NPESK5LFAUOKOU5E4HBO

not attested not anchored not stored refs pending

BPS states on noncommutative tori and duality

Albert Schwarz, Anatoly Konechny

arxiv:hep-th/9811159 v2 · 1998-11-17 · 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{QRXHX7NPESK5LFAUOKOU5E4HBO}

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	2026-05-18T01:38:35.379872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

846e7bfdaf2495d59414729d4e93870b8ed70637166da366088812139a8e7613

Aliases

arxiv: hep-th/9811159 · arxiv_version: hep-th/9811159v2 · doi: 10.48550/arxiv.hep-th/9811159 · pith_short_12: QRXHX7NPESK5 · pith_short_16: QRXHX7NPESK5LFAU · pith_short_8: QRXHX7NP

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/QRXHX7NPESK5LFAUOKOU5E4HBO \
  | 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: 846e7bfdaf2495d59414729d4e93870b8ed70637166da366088812139a8e7613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0c3c461cff1f3eabb2c397adbecc750315ec3665d09442dc40e78a985c30e9e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-11-17T04:49:08Z",
    "title_canon_sha256": "389057869dc7aaf9317bc403f6f5a8cdcca0485534fea41454d3756d590bacc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9811159",
    "kind": "arxiv",
    "version": 2
  }
}