Pith Number

pith:OCBHMKNH

pith:2024:OCBHMKNH3WAHYN3G53SD4NUGDO

not attested not anchored not stored refs pending

Spectroscopic Quasar Anomaly Detection (SQuAD) I: Rest-Frame UV Spectra from SDSS DR16

Arihant Tiwari, M. Vivek (Indian Institute of Astrophysics)

arxiv:2411.16858 v2 · 2024-11-25 · 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{OCBHMKNH3WAHYN3G53SD4NUGDO}

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	2026-07-05T11:29:52.371590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70827629a7dd807c3766eee43e36861ba6a368d95eaba0ef893c395c34b03b7a

Aliases

arxiv: 2411.16858 · arxiv_version: 2411.16858v2 · doi: 10.48550/arxiv.2411.16858 · pith_short_12: OCBHMKNH3WAH · pith_short_16: OCBHMKNH3WAHYN3G · pith_short_8: OCBHMKNH

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/OCBHMKNH3WAHYN3G53SD4NUGDO \
  | 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: 70827629a7dd807c3766eee43e36861ba6a368d95eaba0ef893c395c34b03b7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fab441a6656b4730abeb218ca0a21c469c15161653480fdae824d9359a44a73",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-11-25T19:00:08Z",
    "title_canon_sha256": "c838300b3e7554486075b4b23ec5705a9a74429bedb291faf70e6c05dfdfc163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.16858",
    "kind": "arxiv",
    "version": 2
  }
}