Pith Number

pith:IPFIGAP3

pith:2005:IPFIGAP3GU2P44XPVJQVGOC5LE

not attested not anchored not stored refs pending

A variable Quasi-Periodic Ocillation in M82 X-1. Timing and spectral analysis of XMM-Newton and RossiXTE observations

L. Zampieri, P. Casella, P. Mucciarelli, P. Ranalli, T. Belloni

arxiv:astro-ph/0509796 v1 · 2005-09-27 · 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{IPFIGAP3GU2P44XPVJQVGOC5LE}

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	2026-07-04T17:15:14.417451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43ca8301fb3534fe72efaa6153385d5935bf32d5b120a02992ef72ed2e631f63

Aliases

arxiv: astro-ph/0509796 · arxiv_version: astro-ph/0509796v1 · doi: 10.48550/arxiv.astro-ph/0509796 · pith_short_12: IPFIGAP3GU2P · pith_short_16: IPFIGAP3GU2P44XP · pith_short_8: IPFIGAP3

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/IPFIGAP3GU2P44XPVJQVGOC5LE \
  | 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: 43ca8301fb3534fe72efaa6153385d5935bf32d5b120a02992ef72ed2e631f63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "287b265a58f52254ca992a1417d745141b890b9cbe6fa3107ae75396affc5420",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-27T09:04:07Z",
    "title_canon_sha256": "45c60167edd5f5029f5f531c343c5388f4d393b8c6501121099f82e93da47400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509796",
    "kind": "arxiv",
    "version": 1
  }
}