Pith Number

pith:ERT4H3HG

pith:1995:ERT4H3HGDPAQSJ4X6JW5VANW4D

not attested not anchored not stored refs pending

Quantum deformation of quantum gravity

Lee Smolin, Seth Major

arxiv:gr-qc/9512020 v1 · 1995-12-09 · 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{ERT4H3HGDPAQSJ4X6JW5VANW4D}

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.

Cited by

2 papers in Pith

Indefinite probabilities in quantum spacetime: A deepening of unpredictability

Receipt and verification

First computed	2026-07-04T15:50:43.835275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2467c3ece61bc1092797f26dda81b6e0e4dedd0cb6d3a7b33965f5ab519f9e15

Aliases

arxiv: gr-qc/9512020 · arxiv_version: gr-qc/9512020v1 · doi: 10.48550/arxiv.gr-qc/9512020 · pith_short_12: ERT4H3HGDPAQ · pith_short_16: ERT4H3HGDPAQSJ4X · pith_short_8: ERT4H3HG

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/ERT4H3HGDPAQSJ4X6JW5VANW4D \
  | 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: 2467c3ece61bc1092797f26dda81b6e0e4dedd0cb6d3a7b33965f5ab519f9e15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f6ffbb10fce2ca349255d5c0f9e389ae74cb985b19f660dee7e94ec513e711c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-12-09T21:01:53Z",
    "title_canon_sha256": "0134de9d9796913e1d06776472ac27186e702fd5f8f44f7502633a186c3b6976"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9512020",
    "kind": "arxiv",
    "version": 1
  }
}