Pith Number

pith:BF3UBEPZ

pith:2012:BF3UBEPZIYSO3RKY5TOC4GAMF6

not attested not anchored not stored refs pending

Extreme star formation in the host galaxies of the fastest growing super-massive black holes at z=4.8

Benny Trakhtenbrot, Hagai Netzer, Ohad Shemmer, Paulina Lira, Rivay Mor

arxiv:1203.1613 v2 · 2012-03-07 · 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{BF3UBEPZIYSO3RKY5TOC4GAMF6}

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	2026-05-18T01:58:13.484603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09774091f94624edc558ecdc2e180c2f83c26144ec31c83f6192acccfa325653

Aliases

arxiv: 1203.1613 · arxiv_version: 1203.1613v2 · doi: 10.48550/arxiv.1203.1613 · pith_short_12: BF3UBEPZIYSO · pith_short_16: BF3UBEPZIYSO3RKY · pith_short_8: BF3UBEPZ

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/BF3UBEPZIYSO3RKY5TOC4GAMF6 \
  | 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: 09774091f94624edc558ecdc2e180c2f83c26144ec31c83f6192acccfa325653

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1d504acfce2bae01ef27a424b26d1a3904ac0ad57e47b87e72706d3c65c4680",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-07T21:00:01Z",
    "title_canon_sha256": "29a44da53236c6a82331f4873ae16cd5e3b3cc5a054b6f202b0a54aadd61fc69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1613",
    "kind": "arxiv",
    "version": 2
  }
}