Pith Number

pith:MDWSLK4K

pith:2012:MDWSLK4KS7INVBAWOV2SJMZJYF

not attested not anchored not stored refs pending

Origin of Delta N_eff as a Result of an Interaction between Dark Radiation and Dark Matter

Adam Moss, Ole Eggers Bjaelde, Subinoy Das

arxiv:1205.0553 v2 · 2012-05-02 · 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{MDWSLK4KS7INVBAWOV2SJMZJYF}

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	2026-05-18T01:57:38.759089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60ed25ab8a97d0da8416757524b329c16c10462ba66258d49e989d4913225133

Aliases

arxiv: 1205.0553 · arxiv_version: 1205.0553v2 · doi: 10.48550/arxiv.1205.0553 · pith_short_12: MDWSLK4KS7IN · pith_short_16: MDWSLK4KS7INVBAW · pith_short_8: MDWSLK4K

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/MDWSLK4KS7INVBAWOV2SJMZJYF \
  | 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: 60ed25ab8a97d0da8416757524b329c16c10462ba66258d49e989d4913225133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65e2f9c40e5ce2c05d6b5790d4e55e4995bb976c438e955d41619a5f90198149",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-02T20:00:04Z",
    "title_canon_sha256": "46a30c4486415539a2974e33bdf947ea78912ed2054ac2025575e00f19a3077d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0553",
    "kind": "arxiv",
    "version": 2
  }
}