Pith Number

pith:QQ36QVRY

pith:2010:QQ36QVRYDDKH4OF6N7K4VZCFLU

not attested not anchored not stored refs pending

On the Evidence for Axion-like Particles from Active Galactic Nuclei

Guido Walter Pettinari, Robert Crittenden

arxiv:1007.0024 v2 · 2010-06-30 · astro-ph.CO · astro-ph.HE · 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{QQ36QVRYDDKH4OF6N7K4VZCFLU}

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	2026-05-18T02:33:15.636182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8437e8563818d47e38be6fd5cae4455d169b04f4e83135d2caf1b3c394b54381

Aliases

arxiv: 1007.0024 · arxiv_version: 1007.0024v2 · doi: 10.48550/arxiv.1007.0024 · pith_short_12: QQ36QVRYDDKH · pith_short_16: QQ36QVRYDDKH4OF6 · pith_short_8: QQ36QVRY

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/QQ36QVRYDDKH4OF6N7K4VZCFLU \
  | 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: 8437e8563818d47e38be6fd5cae4455d169b04f4e83135d2caf1b3c394b54381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2399e129f0bf427cd486e676f6cea2f14e28b0f7cb86bc4cdc0cc0792f74c9d2",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-30T20:46:14Z",
    "title_canon_sha256": "ed7ea87096375cd0afd981eb730287138641746a8c80abfe78e0b38bd8f433c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0024",
    "kind": "arxiv",
    "version": 2
  }
}