Pith Number

pith:NCLMU2QP

pith:2008:NCLMU2QP6DPOJDLR26UF3UTUMO

not attested not anchored not stored refs pending

Global Properties of Topological String Amplitudes and Orbifold Invariants

J.D. Laenge, M. Alim, P. Mayr

arxiv:0809.4253 v1 · 2008-09-24 · hep-th · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCLMU2QP6DPOJDLR26UF3UTUMO}

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	2026-05-18T04:27:58.358862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6896ca6a0ff0dee48d71d7a85dd2746382a7531824b8c002db4a2311ad2d5423

Aliases

arxiv: 0809.4253 · arxiv_version: 0809.4253v1 · doi: 10.48550/arxiv.0809.4253 · pith_short_12: NCLMU2QP6DPO · pith_short_16: NCLMU2QP6DPOJDLR · pith_short_8: NCLMU2QP

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/NCLMU2QP6DPOJDLR26UF3UTUMO \
  | 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: 6896ca6a0ff0dee48d71d7a85dd2746382a7531824b8c002db4a2311ad2d5423

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d10c39edd8e12680fba61c9ab011dc3fd8f91ea7627c212683b28aa82f33bad",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-09-24T19:32:10Z",
    "title_canon_sha256": "4108df2ff117d499027355076045f0421acfaaf2974eec95b1b06c7ce9886a98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4253",
    "kind": "arxiv",
    "version": 1
  }
}