Pith Number

pith:QRF4MTK5

pith:2011:QRF4MTK5EXKGCUSRD2HEP4W7N4

not attested not anchored not stored refs pending

Disk, merger, or outflow ? Molecular gas kinematics in two powerful obscured QSOs at z>3.4

A. Omont, J. Bergeron, M. Polletta, N.P.H. Nesvadba, R. Neri, S. Berta

arxiv:1107.2129 v1 · 2011-07-11 · astro-ph.CO · 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{QRF4MTK5EXKGCUSRD2HEP4W7N4}

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	2026-05-18T02:01:20.106597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844bc64d5d25d46152511e8e47f2df6f39e4131ae62e50cd24b45025eb9799f1

Aliases

arxiv: 1107.2129 · arxiv_version: 1107.2129v1 · doi: 10.48550/arxiv.1107.2129 · pith_short_12: QRF4MTK5EXKG · pith_short_16: QRF4MTK5EXKGCUSR · pith_short_8: QRF4MTK5

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/QRF4MTK5EXKGCUSRD2HEP4W7N4 \
  | 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: 844bc64d5d25d46152511e8e47f2df6f39e4131ae62e50cd24b45025eb9799f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab577c723df539fcf243194b1e199f7f906c7f461b0481c05f805daa7b3d7cf0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-11T20:07:21Z",
    "title_canon_sha256": "cdb314946276c5d7fe7f0d5d7da0e640c65e58edf7723e48209e362c6ad86f3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2129",
    "kind": "arxiv",
    "version": 1
  }
}