Pith Number

pith:Q5NSSK4E

pith:2008:Q5NSSK4ELVVYQSCPQW2YAKCF6T

not attested not anchored not stored refs pending

Pathways to massive black holes and compact star clusters in pre-galactic dark matter haloes with virial temperatures > 10000K

John A. Regan, Martin G. Haehnelt

arxiv:0810.2802 v1 · 2008-10-15 · 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{Q5NSSK4ELVVYQSCPQW2YAKCF6T}

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	2026-05-18T02:15:24.293101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

875b292b845d6b88484f85b5802845f4cb5519726a4cd5419bae4046fea3eac7

Aliases

arxiv: 0810.2802 · arxiv_version: 0810.2802v1 · doi: 10.48550/arxiv.0810.2802 · pith_short_12: Q5NSSK4ELVVY · pith_short_16: Q5NSSK4ELVVYQSCP · pith_short_8: Q5NSSK4E

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/Q5NSSK4ELVVYQSCPQW2YAKCF6T \
  | 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: 875b292b845d6b88484f85b5802845f4cb5519726a4cd5419bae4046fea3eac7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8065697efcf4e346237fa3181cf78a1bd5b2ad6fb9052fb5c2c6a727dbe53e8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-15T20:36:59Z",
    "title_canon_sha256": "84526589b266a03e72d5a32dae64de79136fbc9599ce4066bdc126e1fa7ce7e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.2802",
    "kind": "arxiv",
    "version": 1
  }
}