Pith Number

pith:HSWT5FKL

pith:1993:HSWT5FKLJ7ADIB7QE5GVTMCLWD

not attested not anchored not stored refs pending

On the limits of Brans-Dicke spacetimes: a coordinate-free approach

C. Romero, F. M. Paiva

arxiv:gr-qc/9304030 v1 · 1993-04-20 · 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{HSWT5FKLJ7ADIB7QE5GVTMCLWD}

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	2026-05-18T04:37:57.584415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cad3e954b4fc03407f0274d59b04bb0d3edb1f5bc7b9f1e44027424974d1910

Aliases

arxiv: gr-qc/9304030 · arxiv_version: gr-qc/9304030v1 · doi: 10.48550/arxiv.gr-qc/9304030 · pith_short_12: HSWT5FKLJ7AD · pith_short_16: HSWT5FKLJ7ADIB7Q · pith_short_8: HSWT5FKL

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/HSWT5FKLJ7ADIB7QE5GVTMCLWD \
  | 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: 3cad3e954b4fc03407f0274d59b04bb0d3edb1f5bc7b9f1e44027424974d1910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36a2e3a76019c5a2f1129fb1910d8234c811383771ce202f74414375da2b2754",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-04-20T22:31:39Z",
    "title_canon_sha256": "0b9f06f7e7af649ee92d0d2a4b58dff9c23cb71f3a98e4859a9561dcceb11e26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9304030",
    "kind": "arxiv",
    "version": 1
  }
}