Pith Number

pith:XRAOWB2C

pith:2019:XRAOWB2C3CZZGUV6UYJBMSKGDU

not attested not anchored not stored refs pending

Optical characterization of WISE selected blazar candidates

Alessandro Paggi, Ezequiel J. Marchesini, Federica Ricci, Francesco Massaro, Harold A. Pe\~na-Herazo, Howard A. Smith, Marco Landoni, Nicola Masetti, Raffaele D'Abrusco, Raniere de Menezes, Rodrigo Nemmen

arxiv:1908.05229 v1 · 2019-08-14 · 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{XRAOWB2C3CZZGUV6UYJBMSKGDU}

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	2026-07-05T00:06:53.633762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc40eb0742d8b39352bea6121649461d1eda14d98447276490574cae6313af51

Aliases

arxiv: 1908.05229 · arxiv_version: 1908.05229v1 · doi: 10.48550/arxiv.1908.05229 · pith_short_12: XRAOWB2C3CZZ · pith_short_16: XRAOWB2C3CZZGUV6 · pith_short_8: XRAOWB2C

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/XRAOWB2C3CZZGUV6UYJBMSKGDU \
  | 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: bc40eb0742d8b39352bea6121649461d1eda14d98447276490574cae6313af51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5b2f68175d3846832afd5490896b91f9fd286827734dff2659d9b261ad00769",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-14T16:57:36Z",
    "title_canon_sha256": "9cf706c8bd817ba2c99c02ccdc3fc22879369b274076e77d153c94f1abd08fcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05229",
    "kind": "arxiv",
    "version": 1
  }
}