Pith Number

pith:ELQJL6OW

pith:1997:ELQJL6OWVP4GI7W6JRIKWRTEK3

not attested not anchored not stored refs pending

The future of spin networks

Lee Smolin

arxiv:gr-qc/9702030 v1 · 1997-02-17 · gr-qc · 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{ELQJL6OWVP4GI7W6JRIKWRTEK3}

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	2026-07-04T14:26:06.480509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22e095f9d6abf8647ede4c50ab466456c3326a77d9cde5e0f6b926daa206e395

Aliases

arxiv: gr-qc/9702030 · arxiv_version: gr-qc/9702030v1 · doi: 10.48550/arxiv.gr-qc/9702030 · pith_short_12: ELQJL6OWVP4G · pith_short_16: ELQJL6OWVP4GI7W6 · pith_short_8: ELQJL6OW

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/ELQJL6OWVP4GI7W6JRIKWRTEK3 \
  | 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: 22e095f9d6abf8647ede4c50ab466456c3326a77d9cde5e0f6b926daa206e395

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c192f7a0915ca3c8b802f620f63ea1d866b15aad16d38c83024526c25978d19",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-02-17T02:03:44Z",
    "title_canon_sha256": "8547c365da505dfb7e66be416177d5660fe99004322df0744d9bec74200f5355"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9702030",
    "kind": "arxiv",
    "version": 1
  }
}