Pith Number

pith:MDYIAAAJ

pith:2017:MDYIAAAJMAOXEFIEZZ5ZDEIU6N

not attested not anchored not stored refs pending

Discovery of 21 New Changing-look AGNs in Northern Sky

Bingquan Wang, Feige Wang, Ian McGreer, Jinyi Shangguan, Jinyi Yang, Linhua Jiang, Qian Yang, Ravi Joshi, Richard Green, Su Yao, Xiaohui Fan, Xiaotong Feng, Xue-Bing Wu, Yuanqi Liu, Yuming Fu

arxiv:1711.08122 v2 · 2017-11-22 · 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{MDYIAAAJMAOXEFIEZZ5ZDEIU6N}

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	2026-05-18T00:08:43.982592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60f0800009601d721504ce7b919114f34ba56ca004b8565d0e16d5ce388b6f06

Aliases

arxiv: 1711.08122 · arxiv_version: 1711.08122v2 · doi: 10.48550/arxiv.1711.08122 · pith_short_12: MDYIAAAJMAOX · pith_short_16: MDYIAAAJMAOXEFIE · pith_short_8: MDYIAAAJ

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/MDYIAAAJMAOXEFIEZZ5ZDEIU6N \
  | 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: 60f0800009601d721504ce7b919114f34ba56ca004b8565d0e16d5ce388b6f06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ab1acdfe8adefe8eef65cbad1302b34631e6f7f1631c46a4da9d748be8bf95",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-11-22T03:17:04Z",
    "title_canon_sha256": "1076b147d3ef52d1ee5b71a8c2558d10dd9abdfc10bf0467a68f15297a53cafb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08122",
    "kind": "arxiv",
    "version": 2
  }
}