Pith Number

pith:NOU6NLHE

pith:2018:NOU6NLHECENERJURWFSM2DLGA4

not attested not anchored not stored refs pending

Dark photon portal dark matter with the 21-cm anomaly

Lian-Bao Jia

arxiv:1804.07934 v3 · 2018-04-21 · 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{NOU6NLHECENERJURWFSM2DLGA4}

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	2026-05-17T23:53:31.203733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ba9e6ace4111a48a691b164cd0d66072fac50b72cff0f7a2bb913f819dbb7e4

Aliases

arxiv: 1804.07934 · arxiv_version: 1804.07934v3 · doi: 10.48550/arxiv.1804.07934 · pith_short_12: NOU6NLHECENE · pith_short_16: NOU6NLHECENERJUR · pith_short_8: NOU6NLHE

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/NOU6NLHECENERJURWFSM2DLGA4 \
  | 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: 6ba9e6ace4111a48a691b164cd0d66072fac50b72cff0f7a2bb913f819dbb7e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dddd2d457bed71d0dbf741266f53a6d6df07d8d9f8383291ffc24cacbb813e0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-04-21T10:26:49Z",
    "title_canon_sha256": "c2dfef5cfac35972e2b0a870f9b6b8222050d61a9fa7c66af087ffda4534af34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07934",
    "kind": "arxiv",
    "version": 3
  }
}