Pith Number

pith:WXN4KU4I

pith:2008:WXN4KU4I25UIAMYSAVWZOQKSGU

not attested not anchored not stored refs pending

General Relativistic Machian Universe

Marcelo Samuel Berman

arxiv:0803.0139 v4 · 2008-03-02 · physics.gen-ph · physics.class-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{WXN4KU4I25UIAMYSAVWZOQKSGU}

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	2026-05-18T03:41:21.682172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5dbc55388d768803312056d974152352348b896c425205efcfa179a0be20d96

Aliases

arxiv: 0803.0139 · arxiv_version: 0803.0139v4 · doi: 10.48550/arxiv.0803.0139 · pith_short_12: WXN4KU4I25UI · pith_short_16: WXN4KU4I25UIAMYS · pith_short_8: WXN4KU4I

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/WXN4KU4I25UIAMYSAVWZOQKSGU \
  | 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: b5dbc55388d768803312056d974152352348b896c425205efcfa179a0be20d96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fe6e0b271835ecb325331c666f76191b1487a7b41be476da94ff17e29dc154a",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2008-03-02T20:03:15Z",
    "title_canon_sha256": "1c4e9be76b80707a1a61a558dede4b0fc0d74a7cb1a75c27c5bd1a58ae898c15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0139",
    "kind": "arxiv",
    "version": 4
  }
}