Pith Number

pith:7ID2EEGV

pith:1994:7ID2EEGV5NF4KDIL4WVS7XBZUI

not attested not anchored not stored refs pending

Spectral Analysis of Microwave Background Perturbations Induced by Cosmic Strings

Leandros Perivolaropoulos (Harvard-Smithsonian CfA)

arxiv:astro-ph/9402024 v1 · 1994-02-09 · astro-ph · hep-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{7ID2EEGV5NF4KDIL4WVS7XBZUI}

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	2026-05-18T04:22:32.278394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa07a210d5eb4bc50d0be5ab2fdc39a228b7464bb51a914c23dba37dd9690919

Aliases

arxiv: astro-ph/9402024 · arxiv_version: astro-ph/9402024v1 · doi: 10.48550/arxiv.astro-ph/9402024 · pith_short_12: 7ID2EEGV5NF4 · pith_short_16: 7ID2EEGV5NF4KDIL · pith_short_8: 7ID2EEGV

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/7ID2EEGV5NF4KDIL4WVS7XBZUI \
  | 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: fa07a210d5eb4bc50d0be5ab2fdc39a228b7464bb51a914c23dba37dd9690919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23c1f00d9652ba9ea7aa155179ef7c15c935db9068d4d5579adc2476a3fbf348",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-02-09T02:55:30Z",
    "title_canon_sha256": "dc43c3f8417ae5f6259667b5a62e49d561581de9c2ed1613afddb7c1d21f477b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9402024",
    "kind": "arxiv",
    "version": 1
  }
}