Pith Number

pith:22TIXATN

pith:2012:22TIXATNCHCN7YV7CUFBBW7OF7

not attested not anchored not stored refs pending

Growth of Early Supermassive Black Holes and the High-Redshift Eddington Ratio Distribution

Colin DeGraf, Nishikanta Khandai, Rupert Croft, Tiziana Di Matteo

arxiv:1201.5383 v1 · 2012-01-25 · 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{22TIXATNCHCN7YV7CUFBBW7OF7}

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	2026-05-18T01:58:41.889073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6a68b826d11c4dfe2bf150a10dbee2ffc29403f2ca319b3e340be40f1ed5eec

Aliases

arxiv: 1201.5383 · arxiv_version: 1201.5383v1 · doi: 10.48550/arxiv.1201.5383 · pith_short_12: 22TIXATNCHCN · pith_short_16: 22TIXATNCHCN7YV7 · pith_short_8: 22TIXATN

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/22TIXATNCHCN7YV7CUFBBW7OF7 \
  | 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: d6a68b826d11c4dfe2bf150a10dbee2ffc29403f2ca319b3e340be40f1ed5eec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a54be7043464eebfc70c86ab509aa0a2cec7044bf5c034ad3a7b61226e9768e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-25T21:01:19Z",
    "title_canon_sha256": "873f0f56963360871a96fc41c29768fbb74d88579f0813217ab6c1d4ca5010d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5383",
    "kind": "arxiv",
    "version": 1
  }
}