Pith Number

pith:UEUGSBQ6

pith:2019:UEUGSBQ6JZZ64FZRLW4VL54BQE

not attested not anchored not stored refs pending

Parity violating Friedmann Universes

Jo\~ao Magueijo, Tom Z{\l}o\'snik

arxiv:1908.05184 v3 · 2019-08-14 · 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{UEUGSBQ6JZZ64FZRLW4VL54BQE}

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	2026-07-05T00:14:33.294646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12869061e4e73ee17315db955f7818108e211b434c5ea85fdd11152368611f5

Aliases

arxiv: 1908.05184 · arxiv_version: 1908.05184v3 · doi: 10.48550/arxiv.1908.05184 · pith_short_12: UEUGSBQ6JZZ6 · pith_short_16: UEUGSBQ6JZZ64FZR · pith_short_8: UEUGSBQ6

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/UEUGSBQ6JZZ64FZRLW4VL54BQE \
  | 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: a12869061e4e73ee17315db955f7818108e211b434c5ea85fdd11152368611f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac79bf9423402d72f585b98930b703782d5f6db8b18c321bf8e5efdd57dc5f1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-08-14T15:59:05Z",
    "title_canon_sha256": "c9b396a013e38162fcf6484c8749977f8dfbcd855ac75165ec70bbf4eac905bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05184",
    "kind": "arxiv",
    "version": 3
  }
}