Pith Number

pith:YYC6HDN4

pith:2011:YYC6HDN4AGQOHXKYOVC3OORPY7

not attested not anchored not stored refs pending

XMM-Newton first X-ray detection of the LoBAL quasar PG 1700+518

(2) INAF/Osservatorio Astronomico di Roma, (3) Dipartimento di Astronomia, (4) ESAC-ESA, C. Vignali (3), E. Piconcelli (2), Italy, L. Ballo (1), N. Schartel (4) ((1) IFCA/CSIC-UC, Spain, Spain), Universit\`a degli Studi di Bologna

arxiv:1104.2003 v1 · 2011-04-11 · astro-ph.CO · 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{YYC6HDN4AGQOHXKYOVC3OORPY7}

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	2026-05-18T04:24:36.789602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c605e38dbc01a0e3dd587545b73a2fc7da78a2ba8a24122c84c6aa5b2abc4bbb

Aliases

arxiv: 1104.2003 · arxiv_version: 1104.2003v1 · doi: 10.48550/arxiv.1104.2003 · pith_short_12: YYC6HDN4AGQO · pith_short_16: YYC6HDN4AGQOHXKY · pith_short_8: YYC6HDN4

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/YYC6HDN4AGQOHXKYOVC3OORPY7 \
  | 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: c605e38dbc01a0e3dd587545b73a2fc7da78a2ba8a24122c84c6aa5b2abc4bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32e6882f5612de397ea790d822d03b090961c6cce6fe7e3524faaa1618e74ed1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-11T17:08:26Z",
    "title_canon_sha256": "88a7fa7a655f27a9bad57ad397569c5c81d9db5f8f9028a4972d72deaa5fea25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2003",
    "kind": "arxiv",
    "version": 1
  }
}