Pith Number

pith:6RMQRTC6

pith:1993:6RMQRTC6HHURE2U7NFQXJAFRUC

not attested not anchored not stored refs pending

The physical hamiltonian in nonperturbative quantum gravity

Carlo Rovelli, Lee Smolin

arxiv:gr-qc/9308002 v1 · 1993-08-05 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6RMQRTC6HHURE2U7NFQXJAFRUC}

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	2026-05-18T04:12:01.020692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f45908cc5e39e9126a9f69617480b1a09969b5ec22fdca59fe6de15d0606a557

Aliases

arxiv: gr-qc/9308002 · arxiv_version: gr-qc/9308002v1 · doi: 10.48550/arxiv.gr-qc/9308002 · pith_short_12: 6RMQRTC6HHUR · pith_short_16: 6RMQRTC6HHURE2U7 · pith_short_8: 6RMQRTC6

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/6RMQRTC6HHURE2U7NFQXJAFRUC \
  | 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: f45908cc5e39e9126a9f69617480b1a09969b5ec22fdca59fe6de15d0606a557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4151fd79ef88838bd40ee6432a199363a6ac4069970d111c54dde7d752276e8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-08-05T17:21:00Z",
    "title_canon_sha256": "5159608ff5e193383597d31e304c84e64cfdc0709cfd92ca4ad388c73e76e70a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9308002",
    "kind": "arxiv",
    "version": 1
  }
}