Pith Number

pith:LRPUKIJQ

pith:2011:LRPUKIJQ5MV47P3HS6UFTS4JRM

not attested not anchored not stored refs pending

Stellar black holes at the dawn of the universe

A. Loeb, I.F. Mirabel, J.R. Pritchard, M. Dijkstra, P. Laurent

arxiv:1102.1891 v1 · 2011-02-09 · 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{LRPUKIJQ5MV47P3HS6UFTS4JRM}

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.

Cited by

1 paper in Pith

Dark ages bounds on non-accreting massive compact halo objects

Receipt and verification

First computed	2026-05-18T02:03:14.850456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c5f452130eb2bcfbf6797a859cb898b26656d14ef322d3694852c9600ebdf38

Aliases

arxiv: 1102.1891 · arxiv_version: 1102.1891v1 · doi: 10.48550/arxiv.1102.1891 · pith_short_12: LRPUKIJQ5MV4 · pith_short_16: LRPUKIJQ5MV47P3H · pith_short_8: LRPUKIJQ

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/LRPUKIJQ5MV47P3HS6UFTS4JRM \
  | 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: 5c5f452130eb2bcfbf6797a859cb898b26656d14ef322d3694852c9600ebdf38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d777567e66d3d09058a1d746de596a5e9cfba646f25a6caa4b4ae099aa0e67c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-09T15:58:19Z",
    "title_canon_sha256": "835bed09e4e0053cfd18fb199d3ac48ad1cf25306325b4bbb94b404e606f8235"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1891",
    "kind": "arxiv",
    "version": 1
  }
}