Pith Number

pith:QGEBQPFO

pith:2021:QGEBQPFOYAEKG6X4QWDG57IXF3

not attested not anchored not stored refs pending

SUPER. VI. A giant molecular halo around a z~2 quasar

A. Marconi, A. Puglisi, C. Cicone, C. Circosta, C. Harrison, C. Vignali, D. Kakkad, E. Piconcelli, F. Arrigoni Battaia, F. Mannucci, G. Cresci, G. Vietri, G. Zamorani, J. Scholtz, L. Zappacosta, M. Bischetti, M. Perna, S. Carniani, V. Mainieri

arxiv:2109.02269 v2 · 2021-09-06 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGEBQPFOYAEKG6X4QWDG57IXF3}

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	2026-07-05T03:23:49.909622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8188183caec008a37afc85866efd172efa68289e7aa2b55e981bee03b44fdd75

Aliases

arxiv: 2109.02269 · arxiv_version: 2109.02269v2 · doi: 10.48550/arxiv.2109.02269 · pith_short_12: QGEBQPFOYAEK · pith_short_16: QGEBQPFOYAEKG6X4 · pith_short_8: QGEBQPFO

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/QGEBQPFOYAEKG6X4QWDG57IXF3 \
  | 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: 8188183caec008a37afc85866efd172efa68289e7aa2b55e981bee03b44fdd75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d191e9f44ab9510635d24e48f15d5415e3719ed4f36a137bc8dc0d78bb4866b2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-06T07:37:09Z",
    "title_canon_sha256": "5817abc7018c689567666052e5affb94b7959b9bb337af7c50b94cdccbb66dea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02269",
    "kind": "arxiv",
    "version": 2
  }
}