Pith Number

pith:ZXJ4WW6S

pith:2012:ZXJ4WW6S46ZN6UGVDXCPYAZURN

not attested not anchored not stored refs pending

CO emission in optically obscured (type-2) quasars at redshifts z=0.1-0.4

M. Krips, P. Cox, R. Neri

arxiv:1205.1962 v1 · 2012-05-09 · 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{ZXJ4WW6S46ZN6UGVDXCPYAZURN}

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	2026-05-18T01:57:36.137539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdd3cb5bd2e7b2df50d51dc4fc03348b552b94f647f87d65ed54d4e119ba0d17

Aliases

arxiv: 1205.1962 · arxiv_version: 1205.1962v1 · doi: 10.48550/arxiv.1205.1962 · pith_short_12: ZXJ4WW6S46ZN · pith_short_16: ZXJ4WW6S46ZN6UGV · pith_short_8: ZXJ4WW6S

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/ZXJ4WW6S46ZN6UGVDXCPYAZURN \
  | 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: cdd3cb5bd2e7b2df50d51dc4fc03348b552b94f647f87d65ed54d4e119ba0d17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "949972320a5456bb56710f96bf8fa7360cb9ef36c4718b58e2bd6651918030cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-09T12:32:43Z",
    "title_canon_sha256": "8ce68b435738202c71c41fdfb96ab3a95a972c61e02f317432ffd2b499f59c56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1962",
    "kind": "arxiv",
    "version": 1
  }
}