Pith Number

pith:6NAM63MH

pith:2009:6NAM63MHGHHL3PP3LNFOUN2C2D

not attested not anchored not stored refs pending

Deep XMM-Newton Spectroscopic and Timing Observations of the Isolated Radio Millisecond Pulsar PSR J0030+0451

Jonathan E. Grindlay (Harvard), Slavko Bogdanov (Harvard/McGill)

arxiv:0908.1971 v1 · 2009-08-13 · 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{6NAM63MHGHHL3PP3LNFOUN2C2D}

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	2026-05-18T02:12:34.480520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f340cf6d8731cebdbdfb5b4aea3742d0c66bd8e5752297ead19a8bae5e0f8edf

Aliases

arxiv: 0908.1971 · arxiv_version: 0908.1971v1 · doi: 10.48550/arxiv.0908.1971 · pith_short_12: 6NAM63MHGHHL · pith_short_16: 6NAM63MHGHHL3PP3 · pith_short_8: 6NAM63MH

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/6NAM63MHGHHL3PP3LNFOUN2C2D \
  | 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: f340cf6d8731cebdbdfb5b4aea3742d0c66bd8e5752297ead19a8bae5e0f8edf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44acac16d9b9e5b6617ae114186035cbfae9e1a5f1abb9086b1e89bd43cb800a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-13T20:39:34Z",
    "title_canon_sha256": "0e0897d0af6d2a170fdac3ac219fdd479b187e68159c3e49efd7e1b39529803a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1971",
    "kind": "arxiv",
    "version": 1
  }
}