Pith Number

pith:WBUECMSP

pith:2018:WBUECMSP7UBQ57KILDB3SJYD36

not attested not anchored not stored refs pending

Discovery of a dual AGN at z~3.3 with 20kpc separation

B. Husemann, F. Arrigoni Battaia, G. Worseck, T. Shanks

arxiv:1801.05442 v2 · 2018-01-16 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WBUECMSP7UBQ57KILDB3SJYD36}

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	2026-05-18T00:20:44.124234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e

Aliases

arxiv: 1801.05442 · arxiv_version: 1801.05442v2 · doi: 10.48550/arxiv.1801.05442 · pith_short_12: WBUECMSP7UBQ · pith_short_16: WBUECMSP7UBQ57KI · pith_short_8: WBUECMSP

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/WBUECMSP7UBQ57KILDB3SJYD36 \
  | 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: b06841324ffd030efd4858c3b92703dfbbaf5952687ce974a7b766e9ba24252e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de62d1b617c6f2bc61473b0638e68fcfd15ee386d7dbf3f4f76b6b9f889ad85d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-16T19:00:18Z",
    "title_canon_sha256": "424930a9b07d639c1d67c61d2db43fa108e94306c05bfde4d8a365169b12fde2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05442",
    "kind": "arxiv",
    "version": 2
  }
}