Pith Number

pith:42RH6IYX

pith:2018:42RH6IYXIOB5PTHHCGBHHD5H75

not attested not anchored not stored refs pending

Dark Matter Casts Light on the Early Universe

A. Arbey, F. Mahmoudi, G. Robbins, J. Ellis

arxiv:1807.00554 v2 · 2018-07-02 · hep-ph · 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{42RH6IYXIOB5PTHHCGBHHD5H75}

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	2026-05-18T00:02:39.650192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a27f23174383d7cce71182738fa7ff6489c9820f0641164694210330259b64

Aliases

arxiv: 1807.00554 · arxiv_version: 1807.00554v2 · doi: 10.48550/arxiv.1807.00554 · pith_short_12: 42RH6IYXIOB5 · pith_short_16: 42RH6IYXIOB5PTHH · pith_short_8: 42RH6IYX

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/42RH6IYXIOB5PTHHCGBHHD5H75 \
  | 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: e6a27f23174383d7cce71182738fa7ff6489c9820f0641164694210330259b64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c840475fb8253a5fac17dd90a4ffba81f34cce7611dc2241c637c54807fd46ee",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-07-02T09:25:26Z",
    "title_canon_sha256": "f5f142d5db12fbb7c07452a48a0f3c34829c46898972b17e29d17445a76468db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00554",
    "kind": "arxiv",
    "version": 2
  }
}