Pith Number

pith:CQOHQMDK

pith:2012:CQOHQMDKGM4MGFTP3APOX7MM7Y

not attested not anchored not stored refs pending

Measuring X-ray variability in faint/sparsely-sampled AGN

C. Pinto, I. Papadakis, M. Paolillo, V. Allevato

arxiv:1202.3786 v5 · 2012-02-16 · astro-ph.HE · 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{CQOHQMDKGM4MGFTP3APOX7MM7Y}

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	2026-05-18T01:58:24.288988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

141c78306a3338c3166fd81eebfd8cfe1426ae985650f9081a1b82fdeea1db86

Aliases

arxiv: 1202.3786 · arxiv_version: 1202.3786v5 · doi: 10.48550/arxiv.1202.3786 · pith_short_12: CQOHQMDKGM4M · pith_short_16: CQOHQMDKGM4MGFTP · pith_short_8: CQOHQMDK

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/CQOHQMDKGM4MGFTP3APOX7MM7Y \
  | 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: 141c78306a3338c3166fd81eebfd8cfe1426ae985650f9081a1b82fdeea1db86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d18de68bc76d1a703f42368f5176757955a154c6fa52afccc1f9502f4ce1381",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-02-16T21:00:02Z",
    "title_canon_sha256": "d5339b1815294ffe061a6c3933667ab188badddf158fbca2aa572c40b2a28f91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3786",
    "kind": "arxiv",
    "version": 5
  }
}