Pith Number

pith:T4GJEI5P

pith:1991:T4GJEI5PJXTOD6ZCDCX63NHFTV

not attested not anchored not stored refs pending

Quantum Gravity and String Theory, What Have We Learned?

A. Strominger

arxiv:hep-th/9110011 v1 · 1991-10-03 · 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{T4GJEI5PJXTOD6ZCDCX63NHFTV}

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	2026-07-04T14:32:25.680188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f0c9223af4de6e1fb2218afedb4e59d6c317c5f5c7586ce0b87284c1863c576

Aliases

arxiv: hep-th/9110011 · arxiv_version: hep-th/9110011v1 · doi: 10.48550/arxiv.hep-th/9110011 · pith_short_12: T4GJEI5PJXTO · pith_short_16: T4GJEI5PJXTOD6ZC · pith_short_8: T4GJEI5P

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/T4GJEI5PJXTOD6ZCDCX63NHFTV \
  | 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: 9f0c9223af4de6e1fb2218afedb4e59d6c317c5f5c7586ce0b87284c1863c576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e40b125c34c37d4723ae2d8a539ecbb2d9dcf4b3d01d6f8911e6e9805b6a5666",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1991-10-03T22:07:43Z",
    "title_canon_sha256": "0900f2214a3405104e7bec50731068ea69d1733ad2ce5bc5a37d8ed28a2a1ec2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9110011",
    "kind": "arxiv",
    "version": 1
  }
}