Pith Number

pith:RC3NUFZD

pith:2009:RC3NUFZDIKSAQP2OPWW5IOCEZW

not attested not anchored not stored refs pending

The 2006-2007 Active Phase of Anomalous X-ray Pulsar 4U 0142+61: Radiative and Timing Changes, Bursts, and Burst Spectral Features

Fotis P. Gavriil (GSFC/UMBC), Rim Dib (McGill University), Victoria M. Kaspi (McGill University)

arxiv:0905.1256 v2 · 2009-05-08 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RC3NUFZDIKSAQP2OPWW5IOCEZW}

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	2026-05-18T04:17:15.539951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88b6da172342a4083f4e7dadd43844cdbff2efef4ddf22bea8ae112de6b4f27b

Aliases

arxiv: 0905.1256 · arxiv_version: 0905.1256v2 · doi: 10.48550/arxiv.0905.1256 · pith_short_12: RC3NUFZDIKSA · pith_short_16: RC3NUFZDIKSAQP2O · pith_short_8: RC3NUFZD

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/RC3NUFZDIKSAQP2OPWW5IOCEZW \
  | 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: 88b6da172342a4083f4e7dadd43844cdbff2efef4ddf22bea8ae112de6b4f27b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c23ee80c01b32e8739f90ade556e885c6fde0416f18835bf091de58a96b3a21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-08T13:54:45Z",
    "title_canon_sha256": "8335284fbec98c64ba4fa256b104c9e30a7619f1a2e147af20d7c2bd578af071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1256",
    "kind": "arxiv",
    "version": 2
  }
}