Pith Number

pith:CVGXIPOQ

pith:1998:CVGXIPOQU4RW2MUQECXUBPXQRV

not attested not anchored not stored refs pending

Absolute spacetime: the twentieth century ether

Carl H. Brans

arxiv:gr-qc/9801029 v1 · 1998-01-09 · 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{CVGXIPOQU4RW2MUQECXUBPXQRV}

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	2026-05-18T04:24:25.836024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

154d743dd0a7236d329020af40bef08d69eb84c588b3832222d16c11353a2f4f

Aliases

arxiv: gr-qc/9801029 · arxiv_version: gr-qc/9801029v1 · doi: 10.48550/arxiv.gr-qc/9801029 · pith_short_12: CVGXIPOQU4RW · pith_short_16: CVGXIPOQU4RW2MUQ · pith_short_8: CVGXIPOQ

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/CVGXIPOQU4RW2MUQECXUBPXQRV \
  | 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: 154d743dd0a7236d329020af40bef08d69eb84c588b3832222d16c11353a2f4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b7785ccb85809eb35c6dd6ce919d15444add002edcc91bcf3b3493d662b972b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-01-09T21:23:57Z",
    "title_canon_sha256": "c09a489ed2bf817c1b157e98e0d4f2084d38d163c1964810f8b40822ca24988b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9801029",
    "kind": "arxiv",
    "version": 1
  }
}