Pith Number

pith:Q3QQOY3Z

pith:2018:Q3QQOY3ZGGHY7ZAJPRBKSWDGH6

not attested not anchored not stored refs pending

The Chandra COSMOS Legacy Survey: Compton Thick AGN at high redshift

A. Comastri, A. M. Koekemoer, C. Vignali, F. Civano, G. Lanzuisi, G. Zamorani, M. Brightman, M. Brusa, R. E. Griffiths, R. Gilli, S. Marchesi

arxiv:1803.08547 v2 · 2018-03-22 · 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{Q3QQOY3ZGGHY7ZAJPRBKSWDGH6}

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	2026-05-18T00:04:44.934468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86e1076379318f8fe4097c42a958663fb632ac65ddcb0684a427b43cd14ce068

Aliases

arxiv: 1803.08547 · arxiv_version: 1803.08547v2 · doi: 10.48550/arxiv.1803.08547 · pith_short_12: Q3QQOY3ZGGHY · pith_short_16: Q3QQOY3ZGGHY7ZAJ · pith_short_8: Q3QQOY3Z

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/Q3QQOY3ZGGHY7ZAJPRBKSWDGH6 \
  | 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: 86e1076379318f8fe4097c42a958663fb632ac65ddcb0684a427b43cd14ce068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89977676b926b74fe25e98fe6807789965094dd3de4dcb0898dd811ea687c84d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-22T19:02:16Z",
    "title_canon_sha256": "3298eb9c3ad325c874c516641233123ca40ef312f3c9ee89858c809d4f5d78cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08547",
    "kind": "arxiv",
    "version": 2
  }
}