Pith Number

pith:7X2JIS7C

pith:1991:7X2JIS7CXO43GEVM4TBYSZLJL2

not attested not anchored not stored refs pending

The big picture

M.T. Hatsuda, N. Berkovits, W. Siegel

arxiv:hep-th/9108021 v2 · 1991-08-26 · 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{7X2JIS7CXO43GEVM4TBYSZLJL2}

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	2026-07-04T15:54:58.701091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf4944be2bbb9b312ace4c38965695e8784bccfb05df10987267f956751306b

Aliases

arxiv: hep-th/9108021 · arxiv_version: hep-th/9108021v2 · doi: 10.48550/arxiv.hep-th/9108021 · pith_short_12: 7X2JIS7CXO43 · pith_short_16: 7X2JIS7CXO43GEVM · pith_short_8: 7X2JIS7C

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/7X2JIS7CXO43GEVM4TBYSZLJL2 \
  | 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: fdf4944be2bbb9b312ace4c38965695e8784bccfb05df10987267f956751306b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a74f6442f64878f41e1cb5019ae1b0d73741bfe0e5ff1725440fa13a48d209b5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1991-08-26T21:15:24Z",
    "title_canon_sha256": "bf2a85307bdb9f41e8d27b28434d5afd3c6e303260fc1697d70bcc29038c246d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9108021",
    "kind": "arxiv",
    "version": 2
  }
}