Pith Number

pith:HQEF7DXS

pith:2008:HQEF7DXS3BCRU27PRC6HSERYWV

not attested not anchored not stored refs pending

Accretion onto Seed Black Holes in the First Galaxies

Milos Milosavljevic, Sean M. Couch, S. Peng Oh, Volker Bromm

arxiv:0809.2404 v2 · 2008-09-14 · 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{HQEF7DXS3BCRU27PRC6HSERYWV}

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	2026-05-18T04:29:32.697249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c085f8ef2d8451a6bef88bc791238b540fa10caa28cb27afcda0184a0a0d08d

Aliases

arxiv: 0809.2404 · arxiv_version: 0809.2404v2 · doi: 10.48550/arxiv.0809.2404 · pith_short_12: HQEF7DXS3BCR · pith_short_16: HQEF7DXS3BCRU27P · pith_short_8: HQEF7DXS

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/HQEF7DXS3BCRU27PRC6HSERYWV \
  | 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: 3c085f8ef2d8451a6bef88bc791238b540fa10caa28cb27afcda0184a0a0d08d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d92d868ac831964cbd26ca233747525be4aafcff18471bd7940cf00c70a7561",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-14T16:01:14Z",
    "title_canon_sha256": "0eaeed80608e6201618ef9d77c5efea292a2e3d362408476d02c87c671cea625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2404",
    "kind": "arxiv",
    "version": 2
  }
}