Pith Number

pith:4QHRGH5A

pith:2003:4QHRGH5ALKB6U5SXMNLSRH5FCY

not attested not anchored not stored refs pending

Update on String Theory

John H. Schwarz

arxiv:astro-ph/0304507 v1 · 2003-04-28 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QHRGH5ALKB6U5SXMNLSRH5FCY}

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	2026-07-04T14:12:42.324593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e40f131fa05a83ea76576357289fa5161e1a3e6f6e723de703c1eb243da7686e

Aliases

arxiv: astro-ph/0304507 · arxiv_version: astro-ph/0304507v1 · doi: 10.48550/arxiv.astro-ph/0304507 · pith_short_12: 4QHRGH5ALKB6 · pith_short_16: 4QHRGH5ALKB6U5SX · pith_short_8: 4QHRGH5A

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/4QHRGH5ALKB6U5SXMNLSRH5FCY \
  | 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: e40f131fa05a83ea76576357289fa5161e1a3e6f6e723de703c1eb243da7686e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe0bb4118d974d2105458fd14c0f75ab057f9e6d01142797954d0f4fce1a6595",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-28T18:16:10Z",
    "title_canon_sha256": "96af77e93664d21475594c3346eab92b7a17e85e27f9ac311c87cdfb94cfc19f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304507",
    "kind": "arxiv",
    "version": 1
  }
}