Pith Number

pith:3KUMRPY3

pith:2018:3KUMRPY32LYGKM2OWDGG34X3VP

not attested not anchored not stored refs pending

Characterisation of a candidate dual AGN

D. Lena, G. Panizo-Espinar, M. A. P. Torres, M. Heida, P. G. Jonker

arxiv:1804.11232 v2 · 2018-04-30 · 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{3KUMRPY32LYGKM2OWDGG34X3VP}

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	2026-05-18T00:15:54.367109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

daa8c8bf1bd2f065334eb0cc6df2fbabf66e79f40ff3bcf0fe831605b18ec2c3

Aliases

arxiv: 1804.11232 · arxiv_version: 1804.11232v2 · doi: 10.48550/arxiv.1804.11232 · pith_short_12: 3KUMRPY32LYG · pith_short_16: 3KUMRPY32LYGKM2O · pith_short_8: 3KUMRPY3

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/3KUMRPY32LYGKM2OWDGG34X3VP \
  | 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: daa8c8bf1bd2f065334eb0cc6df2fbabf66e79f40ff3bcf0fe831605b18ec2c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96765b9cbbd1c4f4e320ad5bcd1417d1315a2a223817c3baef9e920a331e9d30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-30T14:38:27Z",
    "title_canon_sha256": "2ac314607d602b96808edc3633122929368dfaab934c8dc8cc3cd63b06ae3198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11232",
    "kind": "arxiv",
    "version": 2
  }
}