Pith Number

pith:KSXI3NR7

pith:2012:KSXI3NR7NCQRR3AP3TCEQNRL74

not attested not anchored not stored refs pending

A new technique to efficiently select Compton-thick AGN

A. Caccianiga, P. Severgnini, R. Della Ceca

arxiv:1204.4359 v1 · 2012-04-19 · 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{KSXI3NR7NCQRR3AP3TCEQNRL74}

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	2026-05-18T01:57:48.698089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54ae8db63f68a118ec0fdcc448362bff13b88323b22126b512acd263486949a4

Aliases

arxiv: 1204.4359 · arxiv_version: 1204.4359v1 · doi: 10.48550/arxiv.1204.4359 · pith_short_12: KSXI3NR7NCQR · pith_short_16: KSXI3NR7NCQRR3AP · pith_short_8: KSXI3NR7

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/KSXI3NR7NCQRR3AP3TCEQNRL74 \
  | 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: 54ae8db63f68a118ec0fdcc448362bff13b88323b22126b512acd263486949a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3e98e34dbc4714478554a265325c5c31ad24f22830f9c0b7d8f075adc2695e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-19T14:32:18Z",
    "title_canon_sha256": "36a2b29401e28655c3bf825dc9574ceccade8339e72f373ec9f041ef031872bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4359",
    "kind": "arxiv",
    "version": 1
  }
}