Pith Number

pith:FCW7K6EU

pith:2000:FCW7K6EU5EXIF6IKH6OCEFNBLH

not attested not anchored not stored refs pending

High frequency peakers. I. The bright sample

Carlo Stanghellini, Daniele Dallacasa, Matteo Centonza, Roberto Fanti

arxiv:astro-ph/0012428 v1 · 2000-12-20 · astro-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{FCW7K6EU5EXIF6IKH6OCEFNBLH}

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	2026-05-18T01:07:46.174582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28adf57894e92e82f90a3f9c2215a159de3f5c12abbfbebd87aec5395e631eef

Aliases

arxiv: astro-ph/0012428 · arxiv_version: astro-ph/0012428v1 · doi: 10.48550/arxiv.astro-ph/0012428 · pith_short_12: FCW7K6EU5EXI · pith_short_16: FCW7K6EU5EXIF6IK · pith_short_8: FCW7K6EU

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/FCW7K6EU5EXIF6IKH6OCEFNBLH \
  | 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: 28adf57894e92e82f90a3f9c2215a159de3f5c12abbfbebd87aec5395e631eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dd6f04742b60af96afb29bc9102439b006bbfac11c0c81547d8a690e3676109",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-20T10:40:20Z",
    "title_canon_sha256": "0e9a03c905d8a0c19d14e7bad9b6a81b2fe59a7af75a7421f67b3aab372dd753"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012428",
    "kind": "arxiv",
    "version": 1
  }
}