Pith Number

pith:4LBOVZA2

pith:2018:4LBOVZA2SZ7Q75OBFJWDSJ2XRN

not attested not anchored not stored refs pending

Population III microquasars

Gustavo E. Romero, Pablo Sotomayor Checa

arxiv:1807.10157 v1 · 2018-07-26 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LBOVZA2SZ7Q75OBFJWDSJ2XRN}

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	2026-05-18T00:09:45.231232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c2eae41a967f0ff5c12a6c3927578b6be9ab01d59edbc31ff554e3241aab6a

Aliases

arxiv: 1807.10157 · arxiv_version: 1807.10157v1 · doi: 10.48550/arxiv.1807.10157 · pith_short_12: 4LBOVZA2SZ7Q · pith_short_16: 4LBOVZA2SZ7Q75OB · pith_short_8: 4LBOVZA2

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/4LBOVZA2SZ7Q75OBFJWDSJ2XRN \
  | 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: e2c2eae41a967f0ff5c12a6c3927578b6be9ab01d59edbc31ff554e3241aab6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "411be770922f8810f8447b7f18e0f9863b05431ec8d32448d54cb3642b78ea72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-26T14:10:22Z",
    "title_canon_sha256": "3bebb1dc0ae60f014266900683cdeef834d070016dc9d0d028507105c35bb756"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10157",
    "kind": "arxiv",
    "version": 1
  }
}