Pith Number

pith:ARTINDPE

pith:2016:ARTINDPEHJKWDCD73BZ433ZBND

not attested not anchored not stored refs pending

Four principles for quantum gravity

Lee Smolin

arxiv:1610.01968 v1 · 2016-10-06 · 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{ARTINDPEHJKWDCD73BZ433ZBND}

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	2026-05-18T01:03:04.300436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0466868de43a5561887fd873cdef2168e8cb70ba970f260524f95d9f5af77220

Aliases

arxiv: 1610.01968 · arxiv_version: 1610.01968v1 · doi: 10.48550/arxiv.1610.01968 · pith_short_12: ARTINDPEHJKW · pith_short_16: ARTINDPEHJKWDCD7 · pith_short_8: ARTINDPE

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/ARTINDPEHJKWDCD73BZ433ZBND \
  | 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: 0466868de43a5561887fd873cdef2168e8cb70ba970f260524f95d9f5af77220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "640178408d6d543b023893edc441674b91e84745e3dcbadc295d2c234e2dd4a4",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-10-06T17:46:33Z",
    "title_canon_sha256": "c93e64c757e6eb8863dc4a05953d3760e4ad8ca14fe3c0b0a043ce15c257f291"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.01968",
    "kind": "arxiv",
    "version": 1
  }
}