Pith Number

pith:H3H4KKHQ

pith:1998:H3H4KKHQ5FD72FEIV23MIKDDLJ

not attested not anchored not stored refs pending

Black holes and gravitational waves in string cosmology

Andrew R Liddle, David Wands, Edmund J Copeland, James E Lidsey

arxiv:gr-qc/9803070 v1 · 1998-03-19 · gr-qc · astro-ph · 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{H3H4KKHQ5FD72FEIV23MIKDDLJ}

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	2026-05-18T02:37:28.246019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ecfc528f0e947fd1488aeb6c428635a7bbca10ce2fea2d56dfc6a0bdb3d13b4

Aliases

arxiv: gr-qc/9803070 · arxiv_version: gr-qc/9803070v1 · doi: 10.48550/arxiv.gr-qc/9803070 · pith_short_12: H3H4KKHQ5FD7 · pith_short_16: H3H4KKHQ5FD72FEI · pith_short_8: H3H4KKHQ

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/H3H4KKHQ5FD72FEIV23MIKDDLJ \
  | 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: 3ecfc528f0e947fd1488aeb6c428635a7bbca10ce2fea2d56dfc6a0bdb3d13b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edeffd1d83a63d3833877b8dd948956aec6e1addbd0411c96380ee50a60a9a9a",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-03-19T12:51:31Z",
    "title_canon_sha256": "f9c2a70fb317d9bb1846cfb04691f691d83b385b3327ba5fe659d5779d3c3454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9803070",
    "kind": "arxiv",
    "version": 1
  }
}