Pith Number

pith:HPR3RI6Y

pith:2019:HPR3RI6YX7QYM6EDJUPUQT7PPU

not attested not anchored not stored refs pending

HSC-XD 52: An X-ray detected AGN in a low-mass galaxy at $z\sim0.56$

Andy Goulding, Anneya Golob, Goni Halevi, Hyewon Suh, Jean Coupon, Jenny Greene, Marcin Sawicki, Sean D. Johnson, Stephen Gwyn, Thibaud Moutard, Yoshiki Toba

arxiv:1910.02173 v1 · 2019-10-04 · astro-ph.GA · 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{HPR3RI6YX7QYM6EDJUPUQT7PPU}

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	2026-07-05T00:17:17.358380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be3b8a3d8bfe18678834d1f484fef7d09f3f83c75963b23f1a7f16f9ac5330e

Aliases

arxiv: 1910.02173 · arxiv_version: 1910.02173v1 · doi: 10.48550/arxiv.1910.02173 · pith_short_12: HPR3RI6YX7QY · pith_short_16: HPR3RI6YX7QYM6ED · pith_short_8: HPR3RI6Y

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/HPR3RI6YX7QYM6EDJUPUQT7PPU \
  | 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: 3be3b8a3d8bfe18678834d1f484fef7d09f3f83c75963b23f1a7f16f9ac5330e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee304fdbfd85de96aa9806cda1c44fcb7e92e6893956b464aa63ee9a3ab3e56a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-10-04T23:41:47Z",
    "title_canon_sha256": "0a4707418d02ab46559fc526faeb3481680c92d4936fe4fb2fde55dc0e3dce8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.02173",
    "kind": "arxiv",
    "version": 1
  }
}