Pith Number

pith:EMH7WB73

pith:1991:EMH7WB73Y7ZWA2XA4G6RR2X64Y

not attested not anchored not stored refs pending

Open String Theory in 1+1 Dimensions

D. Kutasov, M. Bershadsky

arxiv:hep-th/9110034 v1 · 1991-10-14 · 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{EMH7WB73Y7ZWA2XA4G6RR2X64Y}

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	2026-05-18T04:37:44.396666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

230ffb07fbc7f3606ae0e1bd18eafee60b1173d1731657db20bcb39c17f5e378

Aliases

arxiv: hep-th/9110034 · arxiv_version: hep-th/9110034v1 · doi: 10.48550/arxiv.hep-th/9110034 · pith_short_12: EMH7WB73Y7ZW · pith_short_16: EMH7WB73Y7ZWA2XA · pith_short_8: EMH7WB73

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/EMH7WB73Y7ZWA2XA4G6RR2X64Y \
  | 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: 230ffb07fbc7f3606ae0e1bd18eafee60b1173d1731657db20bcb39c17f5e378

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9446a06f0526cea2e6022a53eafdce869d390716c5eed82f885a74ab908918b6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1991-10-14T14:19:40Z",
    "title_canon_sha256": "c5c0a48ed7d0bbfb52f2fd4c5a98d07d4877a839bb8e500420d6c928f80ae851"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9110034",
    "kind": "arxiv",
    "version": 1
  }
}