Pith Number

pith:KVELVL5F

pith:2010:KVELVL5FFF3R2QO36Z25AMIGRZ

not attested not anchored not stored refs pending

A characterization of the NGC 4051 soft X-ray spectrum as observed by XMM-Newton

A.A. Nucita, A.L. Longinotti, M. Guainazzi, M. Santos-Lleo, S. Bianchi, Y. Maruccia

arxiv:1003.1285 v2 · 2010-03-05 · astro-ph.CO

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

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	2026-05-18T02:08:45.687650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5548baafa529771d41dbf675d031068e428a23241190ff96df2e30209115dbf6

Aliases

arxiv: 1003.1285 · arxiv_version: 1003.1285v2 · doi: 10.48550/arxiv.1003.1285 · pith_short_12: KVELVL5FFF3R · pith_short_16: KVELVL5FFF3R2QO3 · pith_short_8: KVELVL5F

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/KVELVL5FFF3R2QO36Z25AMIGRZ \
  | 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: 5548baafa529771d41dbf675d031068e428a23241190ff96df2e30209115dbf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd35d4d957bb778129f458111f60016213023a7374d01a8b92b61370485cb720",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-05T15:24:28Z",
    "title_canon_sha256": "0d8387eb8f161301ea332f692ec9ad720401500019d09cf259eefe91a4efbe88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1285",
    "kind": "arxiv",
    "version": 2
  }
}