Pith Number

pith:VARC6OUM

pith:2008:VARC6OUMQPOHCBZMU5TNTQGCEG

not attested not anchored not stored refs pending

On the classical equivalence of superstring field theories

Ehud Fuchs, Michael Kroyter

arxiv:0805.4386 v2 · 2008-05-28 · 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{VARC6OUMQPOHCBZMU5TNTQGCEG}

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	2026-05-18T02:35:22.115272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8222f3a8c83dc71072ca766d9c0c2218b8ae0c932891d8b3fab4e91abedb323

Aliases

arxiv: 0805.4386 · arxiv_version: 0805.4386v2 · doi: 10.48550/arxiv.0805.4386 · pith_short_12: VARC6OUMQPOH · pith_short_16: VARC6OUMQPOHCBZM · pith_short_8: VARC6OUM

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/VARC6OUMQPOHCBZMU5TNTQGCEG \
  | 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: a8222f3a8c83dc71072ca766d9c0c2218b8ae0c932891d8b3fab4e91abedb323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c65e2c6a4bc5673f26978e926dfad6cef98b8d49c03a3857fb6a0a5f7efd5c4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-05-28T17:00:35Z",
    "title_canon_sha256": "c2dbfeac0b48adeab13d101e54499c151f503b7646d7482f8ca43b10b2ccbc50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4386",
    "kind": "arxiv",
    "version": 2
  }
}