Pith Number

pith:SGPWAM4D

pith:2010:SGPWAM4DMHDZPPXFFAXWRGHFBM

not attested not anchored not stored refs pending

The mass-metallicity relation of SDSS quasars

Alessandro Marconi, Kenta Matsuoka, Roberto Maiolino, Tohru Nagao, Yoshiaki Taniguchi

arxiv:1011.5811 v1 · 2010-11-26 · 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{SGPWAM4DMHDZPPXFFAXWRGHFBM}

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	2026-05-18T02:04:38.583726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

919f60338361c797bee5282f6898e50b2783fc13392550669b54b8155eea16cc

Aliases

arxiv: 1011.5811 · arxiv_version: 1011.5811v1 · doi: 10.48550/arxiv.1011.5811 · pith_short_12: SGPWAM4DMHDZ · pith_short_16: SGPWAM4DMHDZPPXF · pith_short_8: SGPWAM4D

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/SGPWAM4DMHDZPPXFFAXWRGHFBM \
  | 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: 919f60338361c797bee5282f6898e50b2783fc13392550669b54b8155eea16cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fafd8935c5b46270fb37b85c133f03e6f3f6343515b5807aa17087af4039125c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-26T14:58:53Z",
    "title_canon_sha256": "7089dcb1aee8008e61315e7e7b72ff84c7c0283b15af045bdd6b6ab654b66a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5811",
    "kind": "arxiv",
    "version": 1
  }
}