Pith Number

pith:LR5XQACT

pith:2019:LR5XQACTTE3WT4WSV526ZFHWP2

not attested not anchored not stored refs pending

Spacetime granularity from finite-dimensionality of local observable algebras

Matti Raasakka

arxiv:1908.09293 v3 · 2019-08-25 · 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{LR5XQACTTE3WT4WSV526ZFHWP2}

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	2026-07-05T00:35:51.668104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c7b780053993769f2d2af75ec94f67e97e7138d5b764b5ad4debaa4755be573

Aliases

arxiv: 1908.09293 · arxiv_version: 1908.09293v3 · doi: 10.48550/arxiv.1908.09293 · pith_short_12: LR5XQACTTE3W · pith_short_16: LR5XQACTTE3WT4WS · pith_short_8: LR5XQACT

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/LR5XQACTTE3WT4WSV526ZFHWP2 \
  | 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: 5c7b780053993769f2d2af75ec94f67e97e7138d5b764b5ad4debaa4755be573

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b720c8bfad7dcd01ac200356ec24bae1bba00746c9369596b6d1dbb430b3c795",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-08-25T10:02:30Z",
    "title_canon_sha256": "2956d27d216c858b0b0462ad170d7d995d78e22538df0964ea3297f0d618cd69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09293",
    "kind": "arxiv",
    "version": 3
  }
}