Pith Number

pith:EGNRFPZB

pith:2026:EGNRFPZBJG77Z2JRASQLL4QIR2

not attested not anchored not stored refs pending

A Scale-Invariant Theory of the Universe

Julian Barbour, Maria I. R. Louren\c{c}o

arxiv:2608.05929 v1 · 2026-08-06 · gr-qc · physics.hist-ph · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGNRFPZBJG77Z2JRASQLL4QIR2}

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	2026-08-07T00:53:23.493874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

219b12bf2149bffce93104a0b5f2088ead251b4c3020cfb6f1cc10df1714825e

Aliases

arxiv: 2608.05929 · arxiv_version: 2608.05929v1 · doi: 10.48550/arxiv.2608.05929 · pith_short_12: EGNRFPZBJG77 · pith_short_16: EGNRFPZBJG77Z2JR · pith_short_8: EGNRFPZB

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/EGNRFPZBJG77Z2JRASQLL4QIR2 \
  | 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: 219b12bf2149bffce93104a0b5f2088ead251b4c3020cfb6f1cc10df1714825e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92759125773837109949b3aae820eb5514d4ea6c4b50b902884ef70fbc9cd14c",
    "cross_cats_sorted": [
      "physics.hist-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-08-06T11:58:49Z",
    "title_canon_sha256": "957e8d99a4935299a5b6dfd40074faba3dea898199b8596c98cc317db4c8a990"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.05929",
    "kind": "arxiv",
    "version": 1
  }
}