Pith Number

pith:NYRLOOJR

pith:1998:NYRLOOJRQZ2XI2L5KICNIDO4HR

not attested not anchored not stored refs pending

Axion perturbation spectra in string cosmologies

David Wands, E. J. Copeland, James E. Lidsey

arxiv:hep-th/9809105 v2 · 1998-09-15 · 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{NYRLOOJRQZ2XI2L5KICNIDO4HR}

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	2026-07-04T16:09:54.759306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e22b73931867574697d5204d40ddc3c523821b8e3bf3c50cfda33b965c5d56c

Aliases

arxiv: hep-th/9809105 · arxiv_version: hep-th/9809105v2 · doi: 10.48550/arxiv.hep-th/9809105 · pith_short_12: NYRLOOJRQZ2X · pith_short_16: NYRLOOJRQZ2XI2L5 · pith_short_8: NYRLOOJR

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/NYRLOOJRQZ2XI2L5KICNIDO4HR \
  | 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: 6e22b73931867574697d5204d40ddc3c523821b8e3bf3c50cfda33b965c5d56c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d7a32c4c79b9e324af429c0c885551132b957b454a9cd72e692e2fb37517d50",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-09-15T08:50:28Z",
    "title_canon_sha256": "a332220f24905dc5b464eb096d475ec64ac6daf9014e887611b1e401dbf5fd09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9809105",
    "kind": "arxiv",
    "version": 2
  }
}