Pith Number

pith:7BIV3RV2

pith:1999:7BIV3RV2WKHAUH5AW7XHPY433Z

not attested not anchored not stored refs pending

Restoring the sting to metric preheating

2), (2) Portsmouth, (3) Harvard), Bruce A. Bassett (1, Christopher Gordon (2), David I. Kaiser (3) ((1) Oxford, Roy Maartens (2)

arxiv:hep-ph/9909482 v2 · 1999-09-22 · hep-ph · astro-ph · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7BIV3RV2WKHAUH5AW7XHPY433Z}

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	2026-07-04T17:18:28.114483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8515dc6bab28e0a1fa0b7ee77e39bde5410abb3b303e37a260680e10015c662

Aliases

arxiv: hep-ph/9909482 · arxiv_version: hep-ph/9909482v2 · doi: 10.48550/arxiv.hep-ph/9909482 · pith_short_12: 7BIV3RV2WKHA · pith_short_16: 7BIV3RV2WKHAUH5A · pith_short_8: 7BIV3RV2

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/7BIV3RV2WKHAUH5AW7XHPY433Z \
  | 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: f8515dc6bab28e0a1fa0b7ee77e39bde5410abb3b303e37a260680e10015c662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eabb01c5520a69c2c48aee10a06f32d3acebfbd9779fa13b79f22c478fb334ee",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-09-22T23:57:13Z",
    "title_canon_sha256": "d1c22ecdf65c3d8c67ad40d459d210bd52e3a91b3913a7c33337f6ad42dd69d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9909482",
    "kind": "arxiv",
    "version": 2
  }
}