Pith Number

pith:W5Z2PQIJ

pith:2021:W5Z2PQIJ4R5RQQMJMZUUAPT4HS

not attested not anchored not stored refs pending

Active galactic nuclei catalog from the AKARI NEP Wide field

Agnieszka Pollo, Anna Durkalec, Artem Poliszczuk, Chris Pearson, Eunbin Kim, Ho Seong Hwang, Hyunjin Shim, Katarzyna Ma{\l}ek, Matthew Malkan, Nagisa Oi, Seong Jin Kim, Simon C.-C. Ho, Tomotsugu Goto, William J. Pearson, Yoshiki Toba

arxiv:2104.13428 v1 · 2021-04-27 · astro-ph.GA · 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{W5Z2PQIJ4R5RQQMJMZUUAPT4HS}

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	2026-07-05T03:01:17.305928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b773a7c109e47b1841896669403e7c3c89b7d6f5f7a1fbccc682b23e73f40fc0

Aliases

arxiv: 2104.13428 · arxiv_version: 2104.13428v1 · doi: 10.48550/arxiv.2104.13428 · pith_short_12: W5Z2PQIJ4R5R · pith_short_16: W5Z2PQIJ4R5RQQMJ · pith_short_8: W5Z2PQIJ

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/W5Z2PQIJ4R5RQQMJMZUUAPT4HS \
  | 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: b773a7c109e47b1841896669403e7c3c89b7d6f5f7a1fbccc682b23e73f40fc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5c598cc7cca465a9ef3c0e7654c5c7a4e4b7a496fce154487698404d5c80ad1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-27T18:58:07Z",
    "title_canon_sha256": "b8f54f4cda4a51fd218cf46f1adf5d23003274eb51347ffba9775e784315e62c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13428",
    "kind": "arxiv",
    "version": 1
  }
}