Pith Number

pith:IQOYWK5B

pith:2015:IQOYWK5BDOPPYBF7BRSRA7CH6W

not attested not anchored not stored refs pending

XMM-Newton observation of a sample of four close dSph galaxies

A.A. Nucita, F. De Paolis, G. Ingrosso, L. Manni, V. Testa

arxiv:1509.01076 v1 · 2015-09-03 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQOYWK5BDOPPYBF7BRSRA7CH6W}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:33:41.626573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

441d8b2ba11b9efc04bf0c65107c47f5a81a6ba43d661e7f8778dac347bce08f

Aliases

arxiv: 1509.01076 · arxiv_version: 1509.01076v1 · doi: 10.48550/arxiv.1509.01076 · pith_short_12: IQOYWK5BDOPP · pith_short_16: IQOYWK5BDOPPYBF7 · pith_short_8: IQOYWK5B

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/IQOYWK5BDOPPYBF7BRSRA7CH6W \
  | 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: 441d8b2ba11b9efc04bf0c65107c47f5a81a6ba43d661e7f8778dac347bce08f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9af32044130e5e6d5c52a1619eb71f96708004282e3125f25bf358dfb8bae8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-03T13:28:11Z",
    "title_canon_sha256": "e24ad2b4187ce50c8802623b88824b52150b4a1899453b3910d21042f9d04b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01076",
    "kind": "arxiv",
    "version": 1
  }
}