Pith Number

pith:OTZ45KGT

pith:1999:OTZ45KGTX7ZJ6WDBKDVKGMPAMR

not attested not anchored not stored refs pending

Elementary introduction to pre-big bang cosmology and to the relic graviton background

M. Gasperini

arxiv:hep-th/9907067 v1 · 1999-07-09 · hep-th · 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{OTZ45KGTX7ZJ6WDBKDVKGMPAMR}

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	2026-05-18T03:43:05.622533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f3cea8d3bff29f586150eaa331e0644aa69b1794e13981813b8876be8402bc

Aliases

arxiv: hep-th/9907067 · arxiv_version: hep-th/9907067v1 · doi: 10.48550/arxiv.hep-th/9907067 · pith_short_12: OTZ45KGTX7ZJ · pith_short_16: OTZ45KGTX7ZJ6WDB · pith_short_8: OTZ45KGT

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/OTZ45KGTX7ZJ6WDBKDVKGMPAMR \
  | 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: 74f3cea8d3bff29f586150eaa331e0644aa69b1794e13981813b8876be8402bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e1e02b7836548b3c62c630f710e523221f66048f41f1ed4eb15bcc45c610ea8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-07-09T18:30:51Z",
    "title_canon_sha256": "56c73320aeea499b9e19fe4881600613c5bc8b0610c4ef6db70da70a73b04090"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9907067",
    "kind": "arxiv",
    "version": 1
  }
}