Pith Number

pith:R5FBB4ZD

pith:1996:R5FBB4ZDTEGVIWY75B2KYRDCWA

not attested not anchored not stored refs pending

Point-like Instantons and the Spin(32)/Z2 Heterotic String

Paul S. Aspinwall

arxiv:hep-th/9612108 v2 · 1996-12-10 · 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{R5FBB4ZDTEGVIWY75B2KYRDCWA}

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	2026-05-18T04:35:16.371349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f4a10f323990d545b1fe874ac4462b00ad1d9b671ab729d32c9689905690822

Aliases

arxiv: hep-th/9612108 · arxiv_version: hep-th/9612108v2 · doi: 10.48550/arxiv.hep-th/9612108 · pith_short_12: R5FBB4ZDTEGV · pith_short_16: R5FBB4ZDTEGVIWY7 · pith_short_8: R5FBB4ZD

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/R5FBB4ZDTEGVIWY75B2KYRDCWA \
  | 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: 8f4a10f323990d545b1fe874ac4462b00ad1d9b671ab729d32c9689905690822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fcbc4e73153f91b859cd18ce1fcc5261a04967264ac89b7d8b8b0799750b81a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1996-12-10T21:00:04Z",
    "title_canon_sha256": "55554f7a7f38abfe656f48eb1310a6575fd493ca903ef8b1568dacc30ebdb0c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9612108",
    "kind": "arxiv",
    "version": 2
  }
}