Pith Number

pith:ZHNHDICY

pith:2006:ZHNHDICYRHTCOLG2IUB37XIS4B

not attested not anchored not stored refs pending

The aftermath of the first stars: massive black holes

Jarrett L. Johnson, Volker Bromm

arxiv:astro-ph/0605691 v2 · 2006-05-29 · 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{ZHNHDICYRHTCOLG2IUB37XIS4B}

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	2026-07-04T15:25:47.842858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9da71a05889e6272cda4503bfdd12e07c48acfa6a44d170683884f986399ab1

Aliases

arxiv: astro-ph/0605691 · arxiv_version: astro-ph/0605691v2 · doi: 10.48550/arxiv.astro-ph/0605691 · pith_short_12: ZHNHDICYRHTC · pith_short_16: ZHNHDICYRHTCOLG2 · pith_short_8: ZHNHDICY

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/ZHNHDICYRHTCOLG2IUB37XIS4B \
  | 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: c9da71a05889e6272cda4503bfdd12e07c48acfa6a44d170683884f986399ab1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed404a77dbdf26de4249fa32b4a3a898105f183d4fbdb960752b95c00bd10fb2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-29T00:13:07Z",
    "title_canon_sha256": "6940682ef3e1b3627b904fe51d4a2456ae95264c066bc88f8b23c0c26e00c977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605691",
    "kind": "arxiv",
    "version": 2
  }
}