Pith Number

pith:IOCLK7PC

pith:2000:IOCLK7PCCV3VTTLPUDAEIO5FPF

not attested not anchored not stored refs pending

Recent Progress in Superstring Theory

John H. Schwarz

arxiv:hep-th/0007130 v2 · 2000-07-17 · 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{IOCLK7PCCV3VTTLPUDAEIO5FPF}

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	2026-07-04T14:31:22.993703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4384b57de2157759cd6fa0c0443ba5795b79c1468bdf3a12615264b67c98a1b8

Aliases

arxiv: hep-th/0007130 · arxiv_version: hep-th/0007130v2 · doi: 10.48550/arxiv.hep-th/0007130 · pith_short_12: IOCLK7PCCV3V · pith_short_16: IOCLK7PCCV3VTTLP · pith_short_8: IOCLK7PC

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/IOCLK7PCCV3VTTLPUDAEIO5FPF \
  | 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: 4384b57de2157759cd6fa0c0443ba5795b79c1468bdf3a12615264b67c98a1b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b04eac181d6c4635c4810a2927bc4d86e89d9ac9d9253cca423a4d023282b3ab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2000-07-17T18:18:56Z",
    "title_canon_sha256": "aaaf9ac330a472cf6fe26c0ab2667495a0202044a5c900fcc63621925c4d4bba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0007130",
    "kind": "arxiv",
    "version": 2
  }
}