Pith Number

pith:JU4C7V5G

pith:2018:JU4C7V5GEFSCTHYNYV2BY7L4EO

not attested not anchored not stored refs pending

Constraints on primordial black hole dark matter from Galactic center X-ray observations

Andi Hektor, Gert H\"utsi, Martti Raidal

arxiv:1805.06513 v2 · 2018-05-16 · astro-ph.CO · hep-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{JU4C7V5GEFSCTHYNYV2BY7L4EO}

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	2026-05-18T00:01:59.392595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d382fd7a62164299f0dc5741c7d7c239844e05361f6632aeb50bc2cf88f99f6

Aliases

arxiv: 1805.06513 · arxiv_version: 1805.06513v2 · doi: 10.48550/arxiv.1805.06513 · pith_short_12: JU4C7V5GEFSC · pith_short_16: JU4C7V5GEFSCTHYN · pith_short_8: JU4C7V5G

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/JU4C7V5GEFSCTHYNYV2BY7L4EO \
  | 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: 4d382fd7a62164299f0dc5741c7d7c239844e05361f6632aeb50bc2cf88f99f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dcba9e20e58c2883ce2541f171f0694fb83463b10a6aa6da389feb7bdf79c76",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-05-16T20:19:39Z",
    "title_canon_sha256": "be16571b9890f198747fdae1a798dee5d9a632873693c0402a98a2efb207e5db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06513",
    "kind": "arxiv",
    "version": 2
  }
}