Pith Number

pith:76H2ODC7

pith:2019:76H2ODC7QOEPWRONLEFEEJ4JHZ

not attested not anchored not stored refs pending

Rapid "Turn-on" of type 1 AGN in a quiescent early type galaxy SDSS1115+0544

A. J. Drake (Caltech), C. Fremling (Caltech), Chenwei Yang (USTC, China), Daniel Stern (JPL), Jiang Ning (USTC, K. Burdge (Caltech), Liming Dou (USTC, Lin Yan (Caltech), M.J. Graham (Caltech), M. M. Kasliwal (Caltech), Tinggui Wang (USTC

arxiv:1902.04163 v1 · 2019-02-11 · astro-ph.HE · 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{76H2ODC7QOEPWRONLEFEEJ4JHZ}

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	2026-05-17T23:50:19.396274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff8fa70c5f8388fb45cd590a4227893e6e7b50e6a8ae82b070f70e33bbd3fd5f

Aliases

arxiv: 1902.04163 · arxiv_version: 1902.04163v1 · doi: 10.48550/arxiv.1902.04163 · pith_short_12: 76H2ODC7QOEP · pith_short_16: 76H2ODC7QOEPWRON · pith_short_8: 76H2ODC7

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/76H2ODC7QOEPWRONLEFEEJ4JHZ \
  | 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: ff8fa70c5f8388fb45cd590a4227893e6e7b50e6a8ae82b070f70e33bbd3fd5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "706f6f024e7dbb2c273467b9551d7f267689587937300923cbe59051e1a1a707",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-02-11T21:58:18Z",
    "title_canon_sha256": "432b305eeaa94270a34b1ebbeea51a241e701e13e9045c5ab7b552f2371cdaf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04163",
    "kind": "arxiv",
    "version": 1
  }
}