Pith Number

pith:4CIDOUES

pith:2015:4CIDOUES7ADAUFUYMIUSMRXDOE

not attested not anchored not stored refs pending

An X-ray variable absorber within the Broad Line Region in Fairall 51

Anna Lia Longinotti, Enrico Piconcelli, Jiri Svoboda, Joern Wilms, Matteo Guainazzi, Tobias Beuchert

arxiv:1504.04030 v1 · 2015-04-15 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CIDOUES7ADAUFUYMIUSMRXDOE}

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	2026-05-18T01:55:32.087777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e090375092f8060a169862292646e37126e610e36c3d40d8c286175a1f1e0482

Aliases

arxiv: 1504.04030 · arxiv_version: 1504.04030v1 · doi: 10.48550/arxiv.1504.04030 · pith_short_12: 4CIDOUES7ADA · pith_short_16: 4CIDOUES7ADAUFUY · pith_short_8: 4CIDOUES

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/4CIDOUES7ADAUFUYMIUSMRXDOE \
  | 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: e090375092f8060a169862292646e37126e610e36c3d40d8c286175a1f1e0482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c0a8c3f37345aedf4b50c7b21a5ed447a6e03e059925ea80704040227f173f5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-15T20:06:12Z",
    "title_canon_sha256": "b130ef066d941eeec720ec02cb638617cdbc61ab14b7adf57d4996e3032cfbbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04030",
    "kind": "arxiv",
    "version": 1
  }
}