Pith Number

pith:52WB3U2T

pith:1999:52WB3U2TEGQ7QJNDLNDRVTXOQH

not attested not anchored not stored refs pending

Vacuum effects of ultra-low mass particle account for Recent Acceleration of Universe

Alpan Raval, Leonard Parker

arxiv:gr-qc/9908013 v1 · 1999-08-04 · gr-qc · astro-ph · hep-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{52WB3U2TEGQ7QJNDLNDRVTXOQH}

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	2026-05-18T02:37:27.926495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeac1dd35321a1f825a35b471aceee81e1188eff2d2cae6d811f808d51c70102

Aliases

arxiv: gr-qc/9908013 · arxiv_version: gr-qc/9908013v1 · doi: 10.48550/arxiv.gr-qc/9908013 · pith_short_12: 52WB3U2TEGQ7 · pith_short_16: 52WB3U2TEGQ7QJND · pith_short_8: 52WB3U2T

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/52WB3U2TEGQ7QJNDLNDRVTXOQH \
  | 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: eeac1dd35321a1f825a35b471aceee81e1188eff2d2cae6d811f808d51c70102

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b823c376fbf288becc47e45f47113cc19762d0fe63b366574e7c9ed25eebbd31",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-08-04T18:30:37Z",
    "title_canon_sha256": "77a455750f5b37e2f5163d26b80d5191bce251f7fb7297378d44ed701e96d899"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9908013",
    "kind": "arxiv",
    "version": 1
  }
}