Pith Number

pith:XIPZ3A4T

pith:2018:XIPZ3A4TFZGSIJMW5L7H2FXJFW

not attested not anchored not stored refs pending

Dependence of optical Active Galactic Nuclei identification on stellar population models

2), (2) Center for Cosmology, Abu Dhabi, Glennys R Farrar (2) ((1) New York University Abu Dhabi, Ingyin Zaw (1, New York, New York University, NY, Particle Physics, Physics Department, United Arab Emirates, USA), Yan-Ping Chen (1)

arxiv:1805.12373 v1 · 2018-05-31 · 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{XIPZ3A4TFZGSIJMW5L7H2FXJFW}

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	2026-05-18T00:10:37.252000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba1f9d83932e4d242596eafe7d16e92d8a6d808429d2f619046ecc8a9d500434

Aliases

arxiv: 1805.12373 · arxiv_version: 1805.12373v1 · doi: 10.48550/arxiv.1805.12373 · pith_short_12: XIPZ3A4TFZGS · pith_short_16: XIPZ3A4TFZGSIJMW · pith_short_8: XIPZ3A4T

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/XIPZ3A4TFZGSIJMW5L7H2FXJFW \
  | 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: ba1f9d83932e4d242596eafe7d16e92d8a6d808429d2f619046ecc8a9d500434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "264338c769487293cd1b74986e821c3fe277131e8a66e865726ecd80aa0032c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-31T08:25:07Z",
    "title_canon_sha256": "a8af8f3cb5a49f2560bc7fc307274d68f550c9d5bea5ecb076441ba7a93e8f8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.12373",
    "kind": "arxiv",
    "version": 1
  }
}