Pith Number

pith:5Z3G4LDK

pith:2009:5Z3G4LDKGLKQMXRITWFQGQOMA4

not attested not anchored not stored refs pending

High-redshift obscured quasars: radio emission at sub-kiloparsec scales

A. Martinez-Sansigre, H.-R. Kloeckner, M.A. Garrett, S. Rawlings

arxiv:0905.1605 v1 · 2009-05-11 · 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{5Z3G4LDKGLKQMXRITWFQGQOMA4}

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	2026-05-18T02:13:45.876902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee766e2c6a32d5065e289d8b0341cc073fdf469fa51e74f82da492fef66d2026

Aliases

arxiv: 0905.1605 · arxiv_version: 0905.1605v1 · doi: 10.48550/arxiv.0905.1605 · pith_short_12: 5Z3G4LDKGLKQ · pith_short_16: 5Z3G4LDKGLKQMXRI · pith_short_8: 5Z3G4LDK

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/5Z3G4LDKGLKQMXRITWFQGQOMA4 \
  | 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: ee766e2c6a32d5065e289d8b0341cc073fdf469fa51e74f82da492fef66d2026

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22d7f651caded673fe5e9ec802924fe619310a3dc7720e93da04b9bf72474f88",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-11T12:00:18Z",
    "title_canon_sha256": "1188ea53a2be09387614676a969860599ca263914883c6bd9c7fdd7375d7881e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1605",
    "kind": "arxiv",
    "version": 1
  }
}