Pith Number

pith:BCFDHTY2

pith:2013:BCFDHTY2PAWUPSJBI2BWJSFCJD

not attested not anchored not stored refs pending

The variable ionized absorber in the Seyfert 2 Mrk 348

A. Caccianiga, A. Markowitz, E. Marchese, G. Risaliti, J. N Reeves, P. Severgnini, R. Della Ceca, T.J. Turner, V. Braito

arxiv:1312.2439 v1 · 2013-12-09 · 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{BCFDHTY2PAWUPSJBI2BWJSFCJD}

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	2026-05-18T03:05:10.298027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

088a33cf1a782d47c921468364c8a248c9db07005b32c522a0b48da4cee12878

Aliases

arxiv: 1312.2439 · arxiv_version: 1312.2439v1 · doi: 10.48550/arxiv.1312.2439 · pith_short_12: BCFDHTY2PAWU · pith_short_16: BCFDHTY2PAWUPSJB · pith_short_8: BCFDHTY2

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/BCFDHTY2PAWUPSJBI2BWJSFCJD \
  | 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: 088a33cf1a782d47c921468364c8a248c9db07005b32c522a0b48da4cee12878

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ee0c212ba2abb847b35a686040d7ce6fc860b58f6b0b2aec3bbef26036e4652",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-09T14:17:28Z",
    "title_canon_sha256": "98773f5b450629a0d60756cd30decd36be093c11ef32deb8686b814934bcfef5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2439",
    "kind": "arxiv",
    "version": 1
  }
}