Pith Number

pith:DCMEJH7E

pith:2018:DCMEJH7E22JJQBXSL2JFIWGAI6

not attested not anchored not stored refs pending

Axion absorption and the spin temperature of primordial hydrogen

Adrien Auriol, Georg Raffelt, Sacha Davidson

arxiv:1808.09456 v2 · 2018-08-28 · 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{DCMEJH7E22JJQBXSL2JFIWGAI6}

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	2026-05-17T23:55:55.404536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1898449fe4d6929806f25e925458c047a193f9a5d6977ac9f871edfcd17caec7

Aliases

arxiv: 1808.09456 · arxiv_version: 1808.09456v2 · doi: 10.48550/arxiv.1808.09456 · pith_short_12: DCMEJH7E22JJ · pith_short_16: DCMEJH7E22JJQBXS · pith_short_8: DCMEJH7E

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/DCMEJH7E22JJQBXSL2JFIWGAI6 \
  | 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: 1898449fe4d6929806f25e925458c047a193f9a5d6977ac9f871edfcd17caec7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc257b3bdf30bbec718087a3f24f4991e578357c814b6563f42fdc5a91df2a70",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2018-08-28T18:00:02Z",
    "title_canon_sha256": "309476dac458c41a71fe4bae74fed6b60499a18e6b53584c838fa75aa76c46fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09456",
    "kind": "arxiv",
    "version": 2
  }
}