Pith Number

pith:3MBJVIDK

pith:2018:3MBJVIDKXKSABCVFDSSYWG42O2

not attested not anchored not stored refs pending

C IV BAL disappearance in a large SDSS QSO sample

C.J. Grier, D. De Cicco, D. P. Schneider, J. R. Trump, M. Paolillo, N. Filiz Ak, W.N. Brandt

arxiv:1804.04666 v1 · 2018-04-12 · 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{3MBJVIDKXKSABCVFDSSYWG42O2}

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	2026-05-18T00:06:40.213247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db029aa06abaa4008aa51ca58b1b9a76852a28debd78008d31f702454c3988b6

Aliases

arxiv: 1804.04666 · arxiv_version: 1804.04666v1 · doi: 10.48550/arxiv.1804.04666 · pith_short_12: 3MBJVIDKXKSA · pith_short_16: 3MBJVIDKXKSABCVF · pith_short_8: 3MBJVIDK

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/3MBJVIDKXKSABCVFDSSYWG42O2 \
  | 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: db029aa06abaa4008aa51ca58b1b9a76852a28debd78008d31f702454c3988b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d1cb946c88eef6671efafe1efd471c5358442fe31e7097ce1c9d51416fb1958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-12T18:00:01Z",
    "title_canon_sha256": "f6856b51ab4dc472690e44637a707895ceeb820c4b36ef45c30d1da12a9eed10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04666",
    "kind": "arxiv",
    "version": 1
  }
}