Pith Number

pith:6XZPNWD4

pith:2008:6XZPNWD4RMCDD7EG7MX2ECN2S7

not attested not anchored not stored refs pending

Non-geometric String Backgrounds and Worldsheet Algebras

Nick Halmagyi

arxiv:0805.4571 v2 · 2008-05-29 · 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{6XZPNWD4RMCDD7EG7MX2ECN2S7}

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	2026-05-18T02:35:22.080631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5f2f6d87c8b0431fc86fb2fa209ba97f6cafafb3280ee8518fc37a8c6bab5b7

Aliases

arxiv: 0805.4571 · arxiv_version: 0805.4571v2 · doi: 10.48550/arxiv.0805.4571 · pith_short_12: 6XZPNWD4RMCD · pith_short_16: 6XZPNWD4RMCDD7EG · pith_short_8: 6XZPNWD4

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/6XZPNWD4RMCDD7EG7MX2ECN2S7 \
  | 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: f5f2f6d87c8b0431fc86fb2fa209ba97f6cafafb3280ee8518fc37a8c6bab5b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0db918fb872c89878c9d72aebdd8a104f3d55d6ad8bb79fcca935acf32c4325",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-05-29T16:09:21Z",
    "title_canon_sha256": "2fa8255ee831685961ff9c4d923fdf1e75997ce6fb915ab05355ea84a83b5dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4571",
    "kind": "arxiv",
    "version": 2
  }
}