Pith Number

pith:DH3BP7JO

pith:2012:DH3BP7JO4W64Z736H2Q74ZFHRN

not attested not anchored not stored refs pending

A closer look at CMB constraints on WIMP dark matter

Aravind Natarajan

arxiv:1201.3939 v3 · 2012-01-18 · 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{DH3BP7JO4W64Z736H2Q74ZFHRN}

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	2026-05-18T03:22:53.122603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19f617fd2ee5bdccff7e3ea1fe64a78b52e53f84d3871e25e630a0d41c371633

Aliases

arxiv: 1201.3939 · arxiv_version: 1201.3939v3 · doi: 10.48550/arxiv.1201.3939 · pith_short_12: DH3BP7JO4W64 · pith_short_16: DH3BP7JO4W64Z736 · pith_short_8: DH3BP7JO

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/DH3BP7JO4W64Z736H2Q74ZFHRN \
  | 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: 19f617fd2ee5bdccff7e3ea1fe64a78b52e53f84d3871e25e630a0d41c371633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e6aace496e2c6d3e9fc02c946fc8ef3d4fabd4cb458fa94f5f9527b0b549d39",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-18T22:08:07Z",
    "title_canon_sha256": "a19001ad77edef828639a6f90b2fdacbd6579635f68a6747b922fde5054755d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3939",
    "kind": "arxiv",
    "version": 3
  }
}