Pith Number

pith:6IDDZ2KB

pith:2008:6IDDZ2KBVILN2VAYOFV5RUJN5F

not attested not anchored not stored refs pending

Central charges of N=2 superconformal field theories in four dimensions

Alfred D. Shapere, Yuji Tachikawa

arxiv:0804.1957 v2 · 2008-04-14 · 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{6IDDZ2KBVILN2VAYOFV5RUJN5F}

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	2026-05-18T02:35:22.894379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2063ce941aa16dd5418716bd8d12de96653bf5ef465751d52574dbcb90acc69

Aliases

arxiv: 0804.1957 · arxiv_version: 0804.1957v2 · doi: 10.48550/arxiv.0804.1957 · pith_short_12: 6IDDZ2KBVILN · pith_short_16: 6IDDZ2KBVILN2VAY · pith_short_8: 6IDDZ2KB

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/6IDDZ2KBVILN2VAYOFV5RUJN5F \
  | 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: f2063ce941aa16dd5418716bd8d12de96653bf5ef465751d52574dbcb90acc69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "215d7aea5e81a54bd7b6ee8071ad3790c14b3947fe4be1a8b58d7f2d1fd3135d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-04-14T19:53:07Z",
    "title_canon_sha256": "a47479cbaa125394f57f3377185889a1de980ff7291445e613a4ccf99b553ac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.1957",
    "kind": "arxiv",
    "version": 2
  }
}