Pith Number

pith:DL3YDDH5

pith:2005:DL3YDDH5VEXWXBYRZ42QTM2JRM

not attested not anchored not stored refs pending

Rapid Growth of Black Holes in Massive Star-Forming Galaxies

A.W. Blain (Caltech), D.M. Alexander (IoA), Edinburgh), F.E. Bauer (Columbia), IfA, I. Smail (Univ. of Durham), R.J. Ivison (UK ATC, S.C. Chapman (Caltech), W.N. Brandt (PSU)

arxiv:astro-ph/0503453 v1 · 2005-03-21 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DL3YDDH5VEXWXBYRZ42QTM2JRM}

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	2026-07-04T17:25:14.978248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1af7818cfda92f6b8711cf3509b3498b1e97f2bc595d408ca70e367b52b47585

Aliases

arxiv: astro-ph/0503453 · arxiv_version: astro-ph/0503453v1 · doi: 10.48550/arxiv.astro-ph/0503453 · pith_short_12: DL3YDDH5VEXW · pith_short_16: DL3YDDH5VEXWXBYR · pith_short_8: DL3YDDH5

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/DL3YDDH5VEXWXBYRZ42QTM2JRM \
  | 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: 1af7818cfda92f6b8711cf3509b3498b1e97f2bc595d408ca70e367b52b47585

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fca9a02660ac768ca4d5ee311b8128051ccadc8f66a38c1c3cf348317902bb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-03-21T21:12:46Z",
    "title_canon_sha256": "116be4b4f74cd05cb24a917921c5c6ec795e93c50106a18e114a04dbfecf85ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0503453",
    "kind": "arxiv",
    "version": 1
  }
}