Pith Number

pith:OK3D72M3

pith:2018:OK3D72M37Y4JSBKSL26BMIVCTX

not attested not anchored not stored refs pending

The Infrared Medium-deep Survey. IV. Low Eddington Ratio of A Faint Quasar at $z\sim6$: Not Every Supermassive Black Hole is Growing Fast in the Early Universe

Changsu Choi, Dohyeong Kim, Duho Kim, Hyunsung David Jun, Jae-Woo Kim, Ji Hoon Kim, Jueun Hong, Marios Karouzos, Minhee Hyun, Minjin Kim, Myungshin Im, Seong-Kook Lee, Soojong Pak, Won-Kee Park, Yiseul Jeon, Yongjung Kim, Yongmin Yoon, Yoon Chan Taak

arxiv:1802.02782 v1 · 2018-02-08 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OK3D72M37Y4JSBKSL26BMIVCTX}

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	2026-05-18T00:19:21.183052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72b63fe99bfe389905525ebc1622a29df13ba415d6256d19129e96d2d984f763

Aliases

arxiv: 1802.02782 · arxiv_version: 1802.02782v1 · doi: 10.48550/arxiv.1802.02782 · pith_short_12: OK3D72M37Y4J · pith_short_16: OK3D72M37Y4JSBKS · pith_short_8: OK3D72M3

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/OK3D72M37Y4JSBKSL26BMIVCTX \
  | 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: 72b63fe99bfe389905525ebc1622a29df13ba415d6256d19129e96d2d984f763

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a78fc79cddcfa08c94d5cbeab6134e64b7c49d7c7f0e9db6a0c385a3bee76668",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-08T10:18:13Z",
    "title_canon_sha256": "894029d2c93c5c97b741d792cf52f44ac3d65913e32328d757758188f1e1572d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02782",
    "kind": "arxiv",
    "version": 1
  }
}