Pith Number

pith:JPHWQQEU

pith:2011:JPHWQQEUI5C4M7NZYST77ZBU7O

not attested not anchored not stored refs pending

Mirror dark matter cosmology - predictions for $N_{eff} [CMB]$ and $N_{eff} [BBN]$

R. Foot

arxiv:1111.6366 v2 · 2011-11-28 · 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{JPHWQQEUI5C4M7NZYST77ZBU7O}

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	2026-05-18T01:59:23.178522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bcf6840944745c67db9c4a7ffe434fbb0e0371e9eb3d078da24bf19d871bb84

Aliases

arxiv: 1111.6366 · arxiv_version: 1111.6366v2 · doi: 10.48550/arxiv.1111.6366 · pith_short_12: JPHWQQEUI5C4 · pith_short_16: JPHWQQEUI5C4M7NZ · pith_short_8: JPHWQQEU

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/JPHWQQEUI5C4M7NZYST77ZBU7O \
  | 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: 4bcf6840944745c67db9c4a7ffe434fbb0e0371e9eb3d078da24bf19d871bb84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d77aa0d728276df0042603b1326674230f4deefb07423f3f2e783be9e0ca86b",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-28T08:25:29Z",
    "title_canon_sha256": "35df980a14e8dbde06d6872b40f7b04016f7267cb580ce964dc514e55286fe73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6366",
    "kind": "arxiv",
    "version": 2
  }
}